EMRFD Message Archive 94

Message	Date	From	Subject
94	2006-08-16 20:28:44	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /EMRFD Feedback Amplifier.xls Uploaded by : jmilldrum <jason@recursiv.com> Description : Microsoft Excel worksheet used to predict the design parameters of feedback amplifiers as shown in Fig 2.69 on page 2.25 You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/EMRFD%20Feedback%20Amplifier.xls To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, jmilldrum <jason@recursiv.com>
111	2006-08-26 09:15:16	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /HartleyCaps.xls Uploaded by : kilocycles <kilocycles@yahoo.com> Description : Worksheet allows selection of fixed capacitors in a Hartley tank in order to use an on-hand variable capacitor. You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/HartleyCaps.xls To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, kilocycles <kilocycles@yahoo.com>
465	2007-02-13 06:45:07	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Toroidal KANK.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : Info on making Toroidal KANK coil - From SPRAT Winter 2006 You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Toroidal%20KANK.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, i7swx <i7swx@yahoo.com>
646	2007-04-14 08:04:14	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /I7SWX 2T H-mode mixer Notein Englis revA.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : This is a note on the I7SWX 2 Transformers H-Mode Mixer. It does include infos on the homemade transformers This mixer has been integrated into the G3XJP Pic-A-Star Software Transmitter and Receiver You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/I7SWX%202T%20H-mode%20mixer%20Notein%20Englis%20revA.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, i7swx <i7swx@yahoo.com>
682	2007-05-01 15:45:05	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /I7SWX_DQG_2xFo_HF improvxSoftRock.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : This is a note on how to modify a SoftRockV6 and similar QSDs to operate as a Multiband HF SDR RX - 73 Gian, I7SWX You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/I7SWX_DQG_2xFo_HF%20improvxSoftRock.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, i7swx <i7swx@yahoo.com>
684	2007-05-01 15:46:34	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /I7SWX SDR Marker.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : This is a note regarding a simple signal marker for Software Defined Radio - 73 Gian, I7SWX You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/I7SWX%20SDR%20Marker.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, i7swx <i7swx@yahoo.com>
727	2007-05-08 07:40:18	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /I7SWX Possible changes to K2 & K1 RTX.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : Improvement changes for Elecraft K2 and K1 transceivers. Info in documentation. 73 Gian, I7SWX You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/I7SWX%20Possible%20changes%20to%20K2%20%26%20K1%20RTX.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, i7swx <i7swx@yahoo.com>
987	2007-08-27 13:51:25	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /ham-qrp.lbr Uploaded by : kilocycles <kilocycles@yahoo.com> Description : Custom EAGLE CAD parts; toroids, qrp design parts You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/ham-qrp.lbr To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, kilocycles <kilocycles@yahoo.com>
992	2007-08-28 08:34:02	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /I7SWX 1T DOUBLE BALANCED FST3125 MIXER2 squarer.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : This is a simple DBM using half FST3125 switching transformer to ground. It maybe used as a mixer, demodulator and or modulator - Gian, I7SWX You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/I7SWX%201T%20DOUBLE%20BALANCED%20FST3125%20MIXER2%20squarer.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, i7swx <i7swx@yahoo.com>
1002	2007-08-31 09:30:40	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/BALMOD.jpg Uploaded by : ajparent1 <kb1gmx@arrl.net> Description : From ARRL SSB for the radio amateur, unique balanced modulator You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/KB1GMX/BALMOD.jpg To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, ajparent1 <kb1gmx@arrl.net>
1045	2007-09-19 17:59:43	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /FETbiastempcomp3.PDF Uploaded by : bkopski <kopskirl@netcarrier.com> Description : MOSFET PA Bias Stabilization Circuit You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/FETbiastempcomp3.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, bkopski <kopskirl@netcarrier.com>
1083	2007-10-10 20:15:22	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VFO Linearizer Schematic.PDF Uploaded by : bkopski <kopskirl@cavtel.net> Description : VFO Linearizer You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/VFO%20Linearizer%20Schematic.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, bkopski <kopskirl@cavtel.net>
1107	2007-10-18 12:59:05	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /AB3CV/060629 81MHz Driscoll Oscillator.pdf Uploaded by : mdgolfbum <jim@jtmiller.com> Description : Driscoll Oscillator example You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/AB3CV/060629%2081MHz%20Driscoll%20Oscillator.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, mdgolfbum <jim@jtmiller.com>
1187	2007-11-24 10:04:36	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Peak Hold Pwr Mtr Circuit.PDF Uploaded by : bkopski <kopskirl@cavtel.net> Description : Peak Hold Pwr Mtr Circuit Diagram You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Peak%20Hold%20Pwr%20Mtr%20Circuit.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, bkopski <kopskirl@cavtel.net>
1189	2007-11-24 11:19:14	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Peak Hold Pwr Mtr Circuit rev1.PDF Uploaded by : bkopski <kopskirl@cavtel.net> Description : revised dwg. - corrects Q1 wiring in original file You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Peak%20Hold%20Pwr%20Mtr%20Circuit%20rev1.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/help/us/groups/files Regards, bkopski <kopskirl@cavtel.net>
1693	2008-06-05 07:49:16	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /WBAmp1Sch1.PDF Uploaded by : bkopski <kopskirl@cavtel.net> Description : EMRFD FBA VARIANT (see related photos, text) You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/WBAmp1Sch1.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, bkopski <kopskirl@cavtel.net>
1694	2008-06-05 07:59:58	Baruch Zilbershat...	Re: New file uploaded to emrfd
1739	2008-06-23 08:45:12	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /WBAmp2Sch1.PDF Uploaded by : bkopski <kopskirl@cavtel.net> Description : A simple 2-device wideband amplifier stage. You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/WBAmp2Sch1.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, bkopski <kopskirl@cavtel.net>
2713	2009-02-20 08:21:23	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /The Gnat/Gnat 40 Rev 0.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : A One-Transistor CW Transceiver You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/The%20Gnat/Gnat%2040%20Rev%200.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, chris3trask <christrask@earthlink.net>
2716	2009-02-20 15:03:32	Alan Yates	Re: New file uploaded to emrfd
2718	2009-02-20 15:43:06	Chris Trask	Re: New file uploaded to emrfd
> > All this work on minimalist rigs of late is very interesting. > Yes, there is a lot of activity in this area. Nice to see all of the different small rigs and variations. One fellow even suggested connecting a microphone to the audio transformer to make it an AM rig. I'd like to see someone try that. Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
2721	2009-02-21 01:27:10	Alan Yates	Re: New file uploaded to emrfd
On Fri, 20 Feb 2009, Chris Trask wrote: > Yes, there is a lot of activity in this area. Nice to see all of > the different small rigs and variations. One fellow even suggested > connecting a microphone to the audio transformer to make it an AM rig. > I'd like to see someone try that. Indeed, I've been looking for an old carbon microphone to try collector/drain modulating my little rig. AM would work much better with the super-regen detector than the current WBFM. AM modulation into the collector circuit from a passive microphone would only be practical at very low oscillator powers, as the microphone would need to provide all the sideband power. I use an electret microphone at the moment to achieve WBFM which is essentially cheating for a true one active device phone transceiver. If you don't mind another device it is easy to AM modulate the oscillator. You could probably base-modulate your current rig, but I am unsure how much modulation depth would be available. FM by comparison is easy as the carrier power is just spread out by the modulation, not added to it which requires significant AF power gain, especially at high carrier powers. Something Michael and I have talked around is using a magnetic amplifier to achieve direct modulation of the RF. Also parametric modulation by varactors which needs little power. Another way to achieve WBFM is simply to couple the microphone diaphram directly to the tank coil. I've played with this briefly and it works fairly well. I noticed the latest SPRAT mentions the same idea by gluing a polymer disk to the coil. Can't remember the author sorry... -- Alan Yates http://www.vk2zay.net/
2730	2009-02-22 06:37:59	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /The Gnat/Gnat 40 Rev 1.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Corrected typos and parts list. 80m version to follow later. You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/The%20Gnat/Gnat%2040%20Rev%201.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, chris3trask <christrask@earthlink.net>
2739	2009-02-25 09:27:21	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /The Gnat/Gnat 40 Rev 2.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Expanded version of the Gnat with 80m and 10m parts values plus PCB artwork. You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/The%20Gnat/Gnat%2040%20Rev%202.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, chris3trask <christrask@earthlink.net>
2885	2009-04-08 04:13:53	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /RF_PA_finals.png Uploaded by : medvidec <vaclavpe@seznam.cz> Description : HF PA final stage topologies You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/RF_PA_finals.png To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, medvidec <vaclavpe@seznam.cz>
3294	2009-07-07 12:24:01	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Twisted Mag Wire Trans Line.pdf Uploaded by : arfghans <gwj@spamcop.net> Description : Lefferson, P., "Twisted Magnet Wire Transmission Line," (IEEE, 1971) You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Twisted%20Mag%20Wire%20Trans%20Line.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.htmlfiles Regards, arfghans <gwj@spamcop.net>
3409	2009-08-03 13:19:46	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Crystal Motional Parameters/Williams 1933.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Early IRE paper showing non-integral harmonics of quartz crystals You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Crystal%20Motional%20Parameters/Williams%201933.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
3410	2009-08-03 13:51:46	victorkoren	Re: New file uploaded to emrfd
Chris, If you see an up to date application note by Agilent in web site: http://cp.literature.agilent.com/litweb/pdf/5965-7662E.pdf Then at page 6 you can read: "whereas the AT, which is cut at 35 degrees off the Y axis, vibrates in the thickness shear mode. An illustration of the various vibrati
3411	2009-08-03 14:11:27	Chris Trask	Re: New file uploaded to emrfd
> Chris, > If you see an up to date application note by Agilent in web site: > http://cp.literature.agilent.com/litweb/pdf/5965-7662E.pdf > Then at page 6 you can read: > > "whereas the AT, which is cut at 35 degrees off the Y axis, vibrates in the > thickness shear mode. An illustration of the various vibration modes is given > in Figure 7." > > Practically all the crystals used by popular ham circuits are AT cut, so its > overtone is the shear mode (you can see in figure 7 at page 7 what shear mode > means). The example in the IRE document obviously is not shear mode but > extensional mode that is immaterial to the crystals we usually use. > And what does that matter? Overtone frequencies are not integral multiples of the fundamental regardless of the cut, and 1.007 is still not exactly equal to 1.000. Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
3413	2009-08-03 14:27:23	victorkoren	Re: New file uploaded to emrfd
No one said that the overtone frequency of an AT-cut quartz crystal overtone frequency is exactly an integer multiplier. It is approximately (up to very few percent) from the odd integer multiplication. Victor - 4Z4ME
3414	2009-08-03 14:33:11	Chris Trask	Re: New file uploaded to emrfd
> > No one said that the overtone frequency of an AT-cut quartz crystal overtone > frequency is exactly an integer multiplier. It is approximately (up to very > few percent) from the odd integer multiplication. > You yourself have claimed more than once that since fn is approimately equal to nfo we can make it exactly equal to nfo so that r'=n and therefore ln is exactly equal to lo in all cases. Most, if not all of us have been showing otherwise. Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
3415	2009-08-03 15:01:22	victorkoren	Re: New file uploaded to emrfd
To clarify the extent of the deviati
3416	2009-08-03 15:05:55	Chris Trask	Re: New file uploaded to emrfd
> > To clarify the extent of the deviation from integer, here is a quote from the > book "Planar microwave engineering" By Thomas H.Lee (Who is a professor I > really love to read) in page 518: > "Because of a variety of effects the overtones are not exactly integer > multiples of the fundamental (but they're close, off by 0.1% or so in the high > direction)" > Are you again trying to say that almost equal to one is exactly equal to one? Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
3418	2009-08-03 15:14:14	victorkoren	Re: New file uploaded to emrfd
And you said that the Overtones are all over the place. I think that to finish this technical discussion we can agree that the overtones frequencies for AT cut crystals are approximately an odd integer multiplicati
3419	2009-08-03 15:39:13	Chris Trask	Re: New file uploaded to emrfd
> > And you said that the Overtones are all over the place. > No, I have never said any such thing. I have instead constantly said that they are not exact integral multiples, and I will continue to do so. > > > I think that to finish this technical discussion we can agree that the overtones > frequencies for AT cut crystals are approximately an odd integer multiplication > of the fundamental frequency. > Agreed? > Since you are constantly forcing the conclusion that "approximately" means "exactly", no. I know better than to openly or privately agree to such. Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
3423	2009-08-04 03:41:56	victorkoren	Re: New file uploaded to emrfd
Chris, I have reviewed all my posts in this discussion and I could not find one post that I had said that the Overtone frequency is the exact multiple of the fundamental frequency. I'd be glad if you tell me the post number that I had say that. Please note that I always said that its very close, an approximation or if its an equati
3425	2009-08-04 06:29:44	Chris Trask	Re: New file uploaded to emrfd
> >Chris, > I have reviewed all my posts in this discussion and I could not > find one post that I had said that the Overtone frequency is > the exact multiple of the fundamental frequency. I'd be glad if > you tell me the post number that I had say that. > You have, mostly indirectly, trying to force the conclusion that they are integral multiples. We've been over this far too many times already, and now you're attempting to alter your position. > > Please note that I always said that its very close, an > approximation or if its an equation then I used ~ instead of =. > Now that this is no longer a technical discussion, I'm bringing it to and end. You'll have to take your circular arguments to someone else. Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
3506	2009-08-28 19:48:59	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Crystal_Test_Setup.pdf Uploaded by : fjch100 <felix.centeno@att.net> Description : Paper about how to get crystals Data parameters You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Crystal_Test_Setup.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/general.htmlfiles Regards, fjch100 <felix.centeno@att.net>
3762	2009-11-10 07:22:03	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /50MHzRFGen3Blk1.PDF Uploaded by : bkopski <kopskirl@cavtel.net> Description : K3NHI: Improved 50 MHz RF Generator Block Diagram You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/50MHzRFGen3Blk1.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/general.htmlfiles Regards, bkopski <kopskirl@cavtel.net>
4192	2010-02-04 10:24:45	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /CA3046 Chronicles/Crystal Oscillators Rev 0.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Crystal Oscillators Using the CA3046 Transistor Array You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/CA3046%20Chronicles/Crystal%20Oscillators%20Rev%200.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
4194	2010-02-04 11:28:31	Tayloe Dan-P26412	Re: New file uploaded to emrfd
Chris; Is there any significant difference between the CA3046 and the CA3086? Is one a higher grade of the other? Looking at the spec sheets they look a lot the same. - Dan, N7VE ________________________________
4195	2010-02-04 12:10:35	Chris Trask	Re: New file uploaded to emrfd
Dan, > > Is there any significant difference between the CA3046 and the CA3086? > Is one a higher grade of the other? Looking at the spec sheets they > look a lot the same. > The only thing I've ever noticed between the two is that the CA3046 is better spec'ed for small signal NF performance and differential pair matching. The CA3086 seems to be better suited for power applications as it has a lower thermal resistance yet the same maximum dissipation and temperature range. Chris ,----------------------. High Performance Mixers and / What's all this \ Amplifiers for RF Communications / extinct stuff, anyhow? / \ _______,--------------' Chris Trask / N7ZWY _
4196	2010-02-04 13:29:22	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /CA3046 Chronicles/CA3046 Audio Amp Rev 0.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : An Audio Output Amplifier Using the CA3046 Transistor Array You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/CA3046%20Chronicles/CA3046%20Audio%20Amp%20Rev%200.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
4205	2010-02-05 11:18:00	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /CA3046 Chronicles/Crystal Oscillators Rev A.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Crystal Oscillators Using the CA3046 Transistor Array You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/CA3046%20Chronicles/Crystal%20Oscillators%20Rev%20A.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
4255	2010-02-11 14:24:20	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /CA3046 Chronicles/CA3046 Superflexodyne Receiver.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : A Superheterodyne Reflex Receiver Using the CA3046 Transistor Array You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/CA3046%20Chronicles/CA3046%20Superflexodyne%20Receiver.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
4360	2010-02-23 12:15:00	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Transductors/AMW 9709.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : The Forgotten Use of Saturable Reactors (Transductors) You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Transductors/AMW%209709.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
4552	2010-04-23 07:14:41	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/HF_use_FET_1.pdf Uploaded by : ajparent1 <kb1gmx@arrl.net> Description : WA2EBY IRF510 FET power amp artical part 1 You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/KB1GMX/HF_use_FET_1.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, ajparent1 <kb1gmx@arrl.net>
4571	2010-04-25 14:41:39	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/IRF510.pdf Uploaded by : ajparent1 <kb1gmx@arrl.net> Description : IRF510 Intersil, data and applications note. You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/KB1GMX/IRF510.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, ajparent1 <kb1gmx@arrl.net>
4619	2010-05-02 02:09:28	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /uglyconstruction.jpg Uploaded by : ha5rxz <ha5rxz@gmail.com> Description : 'Ugly' construction by Giancarlo Moda I7SWX You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/uglyconstruction.jpg To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, ha5rxz <ha5rxz@gmail.com>
5186	2010-09-18 08:07:32	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Negative Impedance LO Driver.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Negative Impedance LO Driver You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Negative%20Impedance%20LO%20Driver.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
5199	2010-09-18 16:44:23	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /ehydra/NID_1.zip Uploaded by : tafelschnecke <ehydra@arcor.de> Description : Trask NID LTspice simulation You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/ehydra/NID_1.zip To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, tafelschnecke <ehydra@arcor.de>
5228	2010-09-22 14:57:37	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /ehydra/NID_2.zip Uploaded by : tafelschnecke <ehydra@arcor.de> Description : Version 2 You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/ehydra/NID_2.zip To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, tafelschnecke <ehydra@arcor.de>
5229	2010-09-22 21:15:30	kb1gmx	Re: New file uploaded to emrfd
5234	2010-09-23 13:09:19	ehydra	Re: New file uploaded to emrfd
kb1gmx schrieb: > Are the resistors on the bases real components or for modeling the series R of the transistors base? If they are real the circuit will > exhibit degeneration and the transistors will exhibit more stored charge. If its modeling I'd expect to see additional Re. > If you look at their magnitude and if I didn't make an error, then this resistors are irrelevant. They are left over from the former (proposed faster) circuit after findinf the 100 ohms problem to discuss. Just handy to let in. - Henry -- ehydra.dyndns.info
5265	2010-09-27 12:43:14	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /X-Mode Mixer Rev0.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : The X-Mode Mixer Unveiled You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/X-Mode%20Mixer%20Rev0.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, chris3trask <christrask@earthlink.net>
5273	2010-09-28 06:27:13	kb1gmx	Re: New file uploaded to emrfd
5276	2010-09-28 07:19:46	Chris Trask	Re: New file uploaded to emrfd
> > Chris, Great paper. > > I'm trying out the first version using silicon junction diodes at HF as that has > a decently high OIP with reasonable drive. The application is transceiver mixer > for a non contest radio with the emphasis of using most of the available IF gain > to drive the TX chain. > A 10db (over a usual DBM) larger signal from the mixer makes for a overall lower > gain requirement to reach power out and may even save a stage. Beats the old > CA3028 as a higher output mixer. > I really miss those CA3000 series transistor arrays. Best thing that ever happened to discrete component designers. Some are still available in SOIC form, and I hold on to my stock of DIP versions for dear life. Let us know how your version of the X-Môde mixer works out, good or bad. The more data from more builders the better. I'm pounding away at a passive (diode) version of the H-Môde mixer. I tried this many years ago, and after the success with the X-Môde mixer I thought I'd give it another try. Tested it this morning with better diodes and it's just as lousy as before. But, if I add a fourth transformer I think I can remedy the problem. I both like and dislike the H-Môde mixer. It has a frequency limitation due entirely to the FETs, but the fact that their sources are all grounded is attractive. Making it with diodes will take care of the frequency limitation. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
5278	2010-09-28 09:11:33	ehydra	Re: H-mode mixer
Hello Chris - Your paper should add the measurement frequency. - What if the H-Moder mixer is realized with JFETs like J309 ? They are very fast. It is clear that the maximum load should then be reduced. But more frequency less IP3 is required. Another way is to test the Potato Semi multiplexers. I'm interested to get a couple of the 74G74 and one of the multiplexers if their is a group buy. - And why do you wrote 'Môde' ? What is the difference to 'Mode'? - Henry -- ehydra.dyndns.info Chris Trask schrieb: > I both like and dislike the H-Môde mixer. It has a frequency limitation > due entirely to the FETs, but the fact that their sources are all grounded > is attractive. Making it with diodes will take care of the frequency > limitation. >
5280	2010-09-28 09:18:14	William Carver	Re: New file uploaded to emrfd
H mode's conceptual virtue is having all FET sources at ground potential so signals do not modulate the gate-source LO (switching) voltage. Diodes, being two-terminal devices, MUST have LO and signal both flowing through the diode. Whether that diode is (for example) in a bridge configuration or in an H configuration you still have both signals in the diode at the same time. There is no isolation between LO and signal meshes regardless of the topology. So what virtue do you see in the H-configuration with diodes? Regards - Bill - W7AAZ
5281	2010-09-28 10:03:46	Chris Trask	Re: New file uploaded to emrfd
> > H mode's conceptual virtue is having all FET sources at ground potential > so signals do not modulate the gate-source LO (switching) voltage. > > Diodes, being two-terminal devices, MUST have LO and signal both flowing > through the diode. Whether that diode is (for example) in a bridge > configuration or in an H configuration you still have both signals in > the diode at the same time. There is no isolation between LO and signal > meshes regardless of the topology. So what virtue do you see in the > H-configuration with diodes? > Breaching the high frequency limitation of the H-Môde mixer, if nothing else. The X-Môde mixer has a virtual ground for the LO and IF signals at the diode common cathode connections, and this may be why the X-Môde mixer has far better IMD performance than the diode ring mixer. The question now remains as to what effect grounding the diode cathodes will have. I'll know before the day is over. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
5282	2010-09-28 10:47:46	ehydra	Re: New file uploaded to emrfd
Chris Trask schrieb: > Breaching the high frequency limitation of the H-Môde mixer, if nothing > else. > > The X-Môde mixer has a virtual ground for the LO and IF signals at the > diode common cathode connections, and this may be why the X-Môde mixer has > far better IMD performance than the diode ring mixer. The question now > remains as to what effect grounding the diode cathodes will have. I'll know > before the day is over. > I'm a litte amused that the multi-billion military and space industry doesn't already cleared all reasonable questions one simple man can ask regarding mixers. On the other side I'm sure Chris knows most of the important papers. Maybe the frequencies are too low? - Henry -- ehydra.dyndns.info
5283	2010-09-28 12:02:46	Chris Trask	Re: New file uploaded to emrfd
> > > The X-Môde mixer has a virtual ground for the LO and IF signals at the > > diode common cathode connections, and this may be why the X-Môde mixer has > > far better IMD performance than the diode ring mixer. The question now > > remains as to what effect grounding the diode cathodes will have. I'll know > > before the day is over. > That didn't take long. I worked up a synthesis for a diode mixer yesterday having all the diode cathodes grounded, then modified my earlier passive H-Môde prototype to add a fourth transformer. Performance is better, but the OIP3 is more than 10dB lower than for the X-Môde mixer with the same diodes. It's not at all useless. Just another bad example. > > I'm a litte amused that the multi-billion military and space industry > doesn't already cleared all reasonable questions one simple man can ask > regarding mixers. > > On the other side I'm sure Chris knows most of the important papers. > > Maybe the frequencies are too low? > Many reasons why not. From my first-hand experiences, most of it has to do with managerial and interpersonal politics. What Alexis de Tocqueville observed in the early 19th century ("Democracy in America", 1835) remains alive and well: We still drag the individual down to the lowest common denominator. Well, most individuals. I refuse to be assimilated. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
5286	2010-09-28 12:29:25	ehydra	Re: New file uploaded to emrfd
Chris Trask schrieb: > That didn't take long. I worked up a synthesis for a diode mixer > yesterday having all the diode cathodes grounded, then modified my earlier > passive H-Môde prototype to add a fourth transformer. Performance is > better, but the OIP3 is more than 10dB lower than for the X-Môde mixer with > the same diodes. > > It's not at all useless. Just another bad example. > H or X, that is the question. > > Many reasons why not. From my first-hand experiences, most of it has to > do with managerial and interpersonal politics. What Alexis de Tocqueville > observed in the early 19th century ("Democracy in America", 1835) remains > alive and well: We still drag the individual down to the lowest common > denominator. Well, most individuals. I refuse to be assimilated. > Engineering is to get the most of a minimum. Seems that is assimilation indeed. - Henry -- ehydra.dyndns.info
5403	2010-11-09 05:49:38	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /BD1359A.jpg Uploaded by : gi0gdp <gi0gdp@yahoo.co.uk> Description : bd135/139 vhf amp You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/BD1359A.jpg To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/forms/general.htmlfiles Regards, gi0gdp <gi0gdp@yahoo.co.uk>
5956	2011-03-27 15:25:54	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Double-Balanced Diode Mixers Rev 0.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Ring, H-M�de, and Split-Ring Diode Mixers You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Double-Balanced%20Diode%20Mixers%20Rev%200.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
5983	2011-04-01 09:49:17	Gian	Re: New file uploaded to emrfd
5984	2011-04-01 10:57:01	Chris Trask	Re: New file uploaded to emrfd
> > congratulations for your h-mode diode mixer configuration. We have always > to take note of interesting mixer configurations. The conversion losses > are interesting if around 1dB lower than the real G3SBI H-Mode Mixer. It > would be interesting to try it on VHF and UHF as it could help people to > have a receiver solution covering from the HF to the UHF. > > Please forgive me if I like to return with comments on the H-Mode Mixer, > as I feel many hams have not much clear what it is and what it is doing. > Your enthusiasm betrays you. It's not the diode version of the H-Môde mixer that gets the better conversion loss, it's my own configuration of splitting up the ring of the diode ring mixer that does. As I stated very clearly in that paper, that the H-Môde diode mixer does not perform any better than the diode ring mixer, which has been consistent with all of the testing I have done with H-Môde mixers to date. All in all, the H-Môde mixer does not perform any better than the diode ring mixer. We've had this argument a few times in the past, and I will restate it here so that there is no misunderstanding: An H-Môde mixer made with the exact same parts as a diode ring mixer, be it diodes or MOSFETs as the switching devices, does not perform any differently than the diode ring or FET ring mixer. It does not surprise me in the least that those of you who have promoted the H-Môde mixer have never performed or published an apples-vs-apples comparison of your own. I have, and the results have always been clearly stated. My mixer, which is described in detil in that paper, bears no resemblance whatsoever to any form of the H-Môde mixer, and I would much prefer that you not make use of my work in an effort to promote the H-Môde mixer. My work, as described in that paper, is none other than my own. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
5985	2011-04-01 11:41:06	n7ve	Re: Split ring diode mixer reduced loss?
Chris, do you have any better understanding as to why the conversion loss is 3 dB lower with your split ring mixer? It does seem advantageous that you have taken two diodes in series (in the ring) and turned them into two diodes in parallel (in the split ring) from a loss reduction standpoint. Do you think that is all that is going
5987	2011-04-01 12:30:39	Chris Trask	Re: Split ring diode mixer reduced loss?
> > Chris, do you have any better understanding as to why the conversion loss > is 3 dB lower with your split ring mixer? > > It does seem advantageous that you have taken two diodes in series (in the > ring) and turned them into two diodes in parallel (in the split ring) from > a loss reduction standpoint. Do you think that is all that is going on here? > Yes, that's pretty much what is taking place. I've been working on a theory section to add to the paper so as to show in detail why there is such a significant difference in conversion loss performance. Basically, at any given time one end of the T3 secondary is shunted to ground by a parallel pair of diodes, while the other end of the secondary sees a load of two package capacitances (Cp in Fig. 4) plus a balanced pair of leakage inductances of the T1 (or T2) secondary to ground. Since there is a pair of Cp plus the T2 (or T1) leakage inductances to ground at both ends of the secondary at all times, those parasitic capacitances and inductances are pretty much balanced out and you're left with the remaining four incremental components of the two diodes in parallel. I'll have the details of all this worked out before long. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
5989	2011-04-01 15:07:19	William Carver	Re: New file uploaded to emrfd
The MOSFET H-mode mixer topology is basically different from ANY diode mixer. The sources are grounded and the gate-source potential is unaffected by the signals. There is NO diode equivalent of the H-mode mixer's topology, it requires a three terminal device. In ANY topology diode mixers MUST have both signal and LO flowing together in the diodes. The switching instant will ALWAYS occur due to the sum of the signal(s) and LO. Yes, diode mixers work to frequencies far above what can be done with bus switch ICs. I have a plastic drawer with MCL diode mixers when I want a VHF/UHF mixer. And when I need higher intercept at VHF I'll and be looking at your arrangement to try to do better. But for HF use H-mode can't be beat. H-mode is not just a lot of bang for the buck (IE, easy to build and works well), it gets within 1 dB of the theoretical conversion loss (3.92 dB) of a perfect commutation mixer. So go ahead and pitch your mixer, I have no problem with that. But panning the H-mode is pointless: for HF the H-mode really IS better. Bill - W7AAZ
5990	2011-04-01 15:33:41	Chris Trask	Re: New file uploaded to emrfd
> > But for HF use H-mode can't be beat. H-mode is not just a lot of bang > for the buck (IE, easy to build and works well), it gets within 1 dB of > the theoretical conversion loss (3.92 dB) of a perfect commutation > mixer. > > So go ahead and pitch your mixer, I have no problem with that. > But panning the H-mode is pointless: for HF the H-mode really IS better. > According to all the testing I've done, the H-Mode mixer is not much different from a ring mixer (diode or FET) made with the exact same parts. You really have to ask yourself why the promoters of the H-Mode mixer have never accomplished and published a direct comparison of their own, using the exact same parts for both circuits. I did it three or more years ago and found very little difference if any. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
5997	2011-04-02 10:57:42	Chris Trask	Re: Split ring diode mixer reduced loss?
> > > > > Chris, do you have any better understanding as to why the conversion loss > > is 3 dB lower with your split ring mixer? > > > > It does seem advantageous that you have taken two diodes in series (in the > > ring) and turned them into two diodes in parallel (in the split ring) from > > a loss reduction standpoint. Do you think that is all that is going on > > here? > > > > Yes, that's pretty much what is taking place. I've been working on a > theory section to add to the paper so as to show in detail why there is such > a significant difference in conversion loss performance. > > Basically, at any given time one end of the T3 secondary is shunted to > ground by a parallel pair of diodes, while the other end of the secondary > sees a load of two package capacitances (Cp in Fig. 4) plus a balanced pair > of leakage inductances of the T1 (or T2) secondary to ground. Since there > is a pair of Cp plus the T2 (or T1) leakage inductances to ground at both > ends of the secondary at all times, those parasitic capacitances and > inductances are pretty much balanced out and you're left with the remaining > four incremental components of the two diodes in parallel. I'll have the > details of all this worked out before long. > Now that I've had time to sort out the theory details, I was reminded of some additional testing that I did when I first came up with the split-ring mixer. There's very little difference between how this and a diode-ring mixer operate. In both cases, one pair of diodes is turned "on" and the other pair "off". The "on" pair shorts one end of the RF/IF transformer secondary to ground while the other end is left open. What is different between these two is that the LO source impedance seen by the diodes is 200-ohms for the split-ring mixer while for the diode-ring mixer it's 100-ohms. I did an additional test back then, replacing the T1 and T2 1:4 baluns with 1:1 baluns, so that the diodes would see a 50-ohm LO source impedance. When I did that, the conversion loss was approximately that of the diode-ring mixer. When I was designing mixers for microwave frequencies, there was always the issue of matching the diodes to the power splitter/combiner. It was quite different when using branchline couplers as the diode ports were 50-ohms and you had to add a short length of high-impedance line plus a small matching stub to get the correct conjugate match. Manufacturers data sheets don't give you much to work with in terms of conversion loss vs. LO source impedance. HP did way back then, but even then we would measure them with a VNA, which was a bit tricky due to the power levels needed. If you weren't careful you could easily burn out the harmonic converter. I will have to investigate this further so as to determine the best LO source resistance, and I might be able to do that by way of adding simple autotransformers to the LO port rather than having to deal with bizarre turns ratios for T1 and T2. Given the fact that the conversion loss is close to the theoretical minimum, it may turn out that this configuration may not be ideal but it is practical and easily reproduced. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
6008	2011-04-03 12:13:58	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Double-Balanced Diode Mixers Rev A.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Ring, H-M�de, and Split-Ring Diode Mixers (revison A) You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Double-Balanced%20Diode%20Mixers%20Rev%20A.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6038	2011-04-04 14:49:10	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Double-Balanced Diode Mixers Rev B.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Ring, H-M�de, and Split-Ring Diode Mixers (revison B) You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Double-Balanced%20Diode%20Mixers%20Rev%20B.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6049	2011-04-06 08:45:14	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Double-Balanced Diode Mixers Rev C.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Ring, H-M�de, and Split-Ring Diode Mixers (revison C) You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Double-Balanced%20Diode%20Mixers%20Rev%20C.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6072	2011-04-07 14:59:15	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /I7SWX-Experim2T-Diode-HM&SplitMixers.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : This is a report on some trials done with Diode H-Mode and Split Mixers following development reported by Chris Trask, N7ZWY- 73 Gian, I7SWX You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/I7SWX-Experim2T-Diode-HM%26SplitMixers.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, i7swx <i7swx@yahoo.com>
6168	2011-04-23 12:27:55	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /amp.pdf Uploaded by : victorkoren <vkoren@actcom.net.il> Description : low noise, high IP3, high reverse isolation amplifier You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/amp.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, victorkoren <vkoren@actcom.net.il>
6177	2011-04-24 07:59:43	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Isolation Amplifier.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : High Isolation Amplifier You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Isolation%20Amplifier.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6179	2011-04-24 09:44:13	kb1gmx	Re: New file uploaded to emrfd
Chris, The file on my linux system is not viewable. It loads but the interconnecting lines are 1pixel wide and required much manipulation to make them visible. Didn't look any better
6181	2011-04-24 11:05:23	Chris Trask	Re: New file uploaded to emrfd
> > The file on my linux system is not viewable. It loads but the > interconnecting lines are 1pixel wide and required much manipulation > to make them visible. Didn't look any better on the Macbook. > Hmmmm... I'm looking at it with Acrobat 3.0, Acrobat 6.0, and Foxit Reader on Win98SE and WinXP, where it comes out fine. I'll do an AutoCAD schematic later after I've played with this idea some more. Chris
6182	2011-04-24 11:43:31	victor	Re: New file uploaded to emrfd
Chris, If you look at fig 6 in my article you have an amplifier with two power splitters. I could not make it stable so I dropped one. I retained the power splitter at the input because by making the power splitter asymmetric, I gain both a defined input impedance and low noise. In your amplifier you took the original amplifier with the two power splitters and then dropped the input power splitter and retained the output one, so by using a 1:1 power splitter it works closer to ideal and you gain a high reverse isolati
6183	2011-04-24 11:53:01	victor	Re: New file uploaded to emrfd
Forgot to add that in your circuit you gain both high reverse isolation and a defined output impedance. Victor - 4Z4ME
6184	2011-04-24 12:37:53	Chris Trask	Re: New file uploaded to emrfd
> > > > > Chris, > > If you look at fig 6 in my article you have an amplifier with two > > power splitters. I could not make it stable so I dropped one. I > > retained the power splitter at the input because by making the power > > splitter asymmetric, I gain both a defined input impedance and low > > noise. > > In your amplifier you took the original amplifier with the two power > > splitters and then dropped the input power splitter and retained the > > output one, so by using a 1:1 power splitter it works closer to ideal > > and you gain a high reverse isolation at the price of worse noise > > Forgot to add that in your circuit you gain both high reverse isolation > and a defined output impedance. > In your input splitter, the two input voltages are of opposite polarity, which means that power is being dissipated by the isolation resistor, and there are also losses in the transformer core due to the generation of flux caused by the voltages being of opposite polarity. This form of power splitter has outputs with equal phase and magnitude when the loads are equal and signal is applied to the common terminal. To prevent losses and excess noise, both inputs should be of equal magnitude and phase so that there is no loss in the isolation resistor and no generation of flux in the transformer core. I solved this part of the problem I was having with your circuit by moving the splitter to the output. Now, I'm seeing reverse isolation in PSpice of 50dB or more. In your circuit you left out the termination resistor of the common port, which degrades the isolation considerably. Your circuit is an inspirational innovation, and now I need to further my adaptati
6185	2011-04-24 13:26:52	victor	Re: New file uploaded to emrfd
The reason that the power splitter at the input works with input signals at opposing polarity is because the transistor base is at virtual ground (if gain is high enough) just as in a OpAmp inverting amplifier. However if the power splitter is assimetric with a high transforming ratio the resistor value is large and its contribution to noise figure is very small, almost negligible. Victor - 4Z4ME
6186	2011-04-24 14:24:54	Chris Trask	Re: New file uploaded to emrfd
> > The reason that the power splitter at the input works with input > signals at opposing polarity is because the transistor base is at > virtual ground (if gain is high enough) just as in a OpAmp > inverting amplifier. However if the power splitter is assimetric > with a high transforming ratio the resistor value is large and > its contribution to noise figure is very small, almost negligible. > Yes, I understood that when I first saw it, but the output return loss is less than 1dB, which makes it almost impossible to use with a passive filter, which requires good terminations at both ends, particular narrow bandwidth bandpass filters and high- or lowpass filter with sharp transition characteristics. Another item was the lack of a proper termination resistor at the splitter output terminal. I found that without it you lose almost 20dB of reverse isolation and about 12dB of return loss in the study case that I use. I've been going back and forth between these two designs (yours and mine), hoping to find some inspiration for eliminating the series and shunt feedback resistors in my design. Using a transformer at both ends does not help as the connection between them is floating. Chris
6187	2011-04-24 14:50:04	victor	Re: New file uploaded to emrfd
The output should have good return loss because the feedback is a parallel feedback at output lowering the collector output impedance to a low value, and with the additional series resistor at the output it brings the output impedance around 50 Ohm. Victor - 4Z4ME
6188	2011-04-24 15:33:00	Chris Trask	Re: New file uploaded to emrfd
> > > > > > > > > The reason that the power splitter at the input works with input > > > signals at opposing polarity is because the transistor base is at > > > virtual ground (if gain is high enough) just as in a OpAmp > > > inverting amplifier. However if the power splitter is assimetric > > > with a high transforming ratio the resistor value is large and > > > its contribution to noise figure is very small, almost negligible. > > > > > > > Yes, I understood that when I first saw it, but the output return loss > > is less than 1dB, which makes it almost impossible to use with a passive > > filter, which requires good terminations at both ends, particular narrow > > bandwidth bandpass filters and high- or lowpass filter with sharp transition > > characteristics. > > > > Another item was the lack of a proper termination resistor at the > > splitter output terminal. I found that without it you lose almost 20dB of > > reverse isolation and about 12dB of return loss in the study case that I > > use. > > > > I've been going back and forth between these two designs (yours and > > mine), hoping to find some inspiration for eliminating the series and shunt > > feedback resistors in my design. Using a transformer at both ends does not > > help as the connection between them is floating. > > > > The output should have good return loss because the feedback is a > parallel feedback at output lowering the collector output impedance > to a low value, and with the additional series resistor at the output > it brings the output impedance around 50 Ohm. > Victor - 4Z4ME > I added the needed termination resistors to your Fig. 6, and I see much better RL and isolation than I do without them, same as in the other cases. Those resistors make power supply decoupling very simple, and I see almost no variation in the phase margin between having them or not. Adding the resistor between the splitters upsets the gain some. Since you said they were needed for stability reasons, could you also attain that stability with a ferrite bead at the base or collector of the transistor? Also, adding the needed termination resistors may accomplish the same thing. In using what I've modeled these past couple of days, my inclination would be to use your Fig 6 for NF performance as any of those require two transformers and you might as well get the best performance for the buck, though I still have concerns about having inputs of opposite phase. For oscillator followers or applications where NF is not a serious issue, I would probably use mine as it only requires a single transformer. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
6189	2011-04-25 00:06:29	victor	Re: New file uploaded to emrfd
In practice the transformers are more complicated than just coupled inductors and their parasitic components will induce instability, thats the reas
6190	2011-04-25 06:33:29	ha5rxz	Re: New file uploaded to emrfd
Victor, a quick question about Figure 8 in your article. On transformer T1 is 10:1 the turns ratio or impedance ratio? Peter HA5RXZ
6191	2011-04-25 08:28:00	victor	Re: New file uploaded to emrfd
Turns ratio. Victor - 4Z4ME
6192	2011-04-25 10:10:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Feedback Amplifier Comparisons.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : PSpice Compariosons of Three Forms of High-Isolation Feedback Amplifiers You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Feedback%20Amplifier%20Comparisons.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6193	2011-04-25 11:17:09	victor	Re: New file uploaded to emrfd
Chris, If you want to simulate my circuit as is, then you have to remove your modifications (25 Ohm resistors at base or collector), add the 33 Ohm resistor in series with the output and use a higher Ft transistor. Victor - 4Z4ME
6194	2011-04-25 12:41:14	Chris Trask	Re: New file uploaded to emrfd
> Chris, > If you want to simulate my circuit as is, then you have to remove your > modifications (25 Ohm resistors at base or collector), add the 33 Ohm > resistor in series with the output and use a higher Ft transistor. > If I were to do that, then I would not be making a valid side-by-side comparison. Removing the splitter termination resistor(s) degrades the isolation and the return losses. I added them so as to obtain the best possible performance and to make a comparison where all three had been optimized. Adding that 33-ohm resistor at the output decreases the gain by 4.3dB, which has quite an impact on the NF. The output noise level decreases, but mostly because it's being attenuated by the added resistor. If I take your single-transformer design, add the 33-ohm output resistor, add the 130-ohm feedback resistor, change the transformer to 1:2, change the isolation resistor to 150-ohms, and eliminate the termination resistor, I get the following: Gain (10MHz) 20.1dB Isolation -40.7dB Input Return Loss -7.7dB Output Return Loss -20.7dB Output Noise (10MHz) 11.59nV 3dB Cutoff 28.5MHz If I simply add the termination resistor (45.5 ohms), I get: Gain (10MHz) 19.2dB Isolation -45.7dB Input Return Loss -6.6dB Output Return Loss -27.9dB Output Noise (10MHz) 15.41nV 3dB Cutoff 26.6MHz Perhaps I should add these two variations to that document. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
6195	2011-04-25 14:03:08	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /4Z4ME/Koren 12 dB amplifier simulation.pdf Uploaded by : victorkoren <vkoren@actcom.net.il> Description : Koren 12 dB amplifier simulation You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/4Z4ME/Koren%2012%20dB%20amplifier%20simulation.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, victorkoren <vkoren@actcom.net.il>
6196	2011-04-25 14:09:54	victor	Re: New file uploaded to emrfd
I have uploaded a file (Koren 12 dB amplifier simulation.pdf) containing full simulation of my amplifier including non-linear and noise figure simulations. Some components were optimized (small value changes) to get optimum results. I do think that the amplifier has excellent performance. Input and output return loss are better than -20db, very low noise figure, 40dBm output IP3, and 38 db reverse isolati
6197	2011-04-25 14:26:15	Chris Trask	Re: New file uploaded to emrfd
> > I have uploaded a file (Koren 12 dB amplifier simulation.pdf) containing > full simulation of my amplifier including non-linear and noise figure > simulations. > Some components were optimized (small value changes) to get optimum > results. I do think that the amplifier has excellent performance. Input > and output return loss are better than -20db, very low noise figure, > 40dBm output IP3, and 38 db reverse isolation which should be enough > for most uses. > And when will you provide us with a full comparison with the other two? Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
6198	2011-04-25 14:33:00	victor	Re: New file uploaded to emrfd
I posted an old simulation that I did at work when I had access to ADS. Now I don't have this access. But still, this amplifier satisfies me so why compare. I don't need higher reverse isolati
6199	2011-04-25 14:47:03	Chris Trask	Re: New file uploaded to emrfd
> > I posted an old simulation that I did at work when I had access to > ADS. Now I don't have this access. But still, this amplifier satisfies > me so why compare. I don't need higher reverse isolation and certainly > would not pay with higher noise figure or worse IP3. > You seem to have missed the fact that my simulation demonstrated that I get better output noise, which equates to better NF. And since I don't have a 4dB attenuator on the output I will very likely see better IP3. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
6200	2011-04-26 01:26:21	victor	Re: New file uploaded to emrfd
Chris, Remember that noise figure is measyured at amplifier input. The calculation of NF from output voltage is: NF=10*Log(((VnAmpOut/Gamp)/VnThermalNoise)^2) VnThermalNoise on 50Ohm at 300 degrees Kelvin is 0.91 nV/Sqrt(Hz) For you 3 amplifier simulations: 1) G=-0.5dB VnAmpOut=2.051 nV/Sqrt(Hz) --> NF=7.06dB 2) G=-0.2dB VnAmpOut=2.878 nV/Sqrt(Hz) --> NF=10.2dB 3) G=0.04dB VnAmpOut=2.897 nV/Sqrt(Hz) --> NF=6.34dB Which certainly is much higher than NF=1.3dB. If your amplifier purpose is only isolati
6201	2011-04-26 05:59:57	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /78A.PDF Uploaded by : ha5rxz <ha5rxz@gmail.com> Description : A High Isolation Amplifier Produced By JPL You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/78A.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, ha5rxz <ha5rxz@gmail.com>
6205	2011-04-26 06:33:45	Chris Trask	Re: New file uploaded to emrfd
> >1) G=-0.5dB VnAmpOut=2.051 nV/Sqrt(Hz) --> NF=7.06dB >2) G=-0.2dB VnAmpOut=2.878 nV/Sqrt(Hz) --> NF=10.2dB >3) G=0.04dB VnAmpOut=2.897 nV/Sqrt(Hz) --> NF=6.34dB > The comparison being made with three different amplifiers with about 0dB of gain, as I've stated more than once. You've provided further evidence that I have devised an amplifier that is quieter than yours. Thank you for that. > >Which certainly is much higher than NF=1.3dB. > That was for an amplifier with 12dB of gain using an MRF586 transistor, which is not a valid comparison to amplifiers having 0dB of gain using 2N2222 transistors. When making comparisons such as this, you use the same transistor in all cases operating at the same bias conditions. If I change the gain of my amplifier to 6dB, the NF drops to 3.85dB, and it will continue to drop as I increase the gain. Now there's the matter if IMD performance. In case #1, your single transformer design, you added a 33-ohm resistor at the output to compensate for the very low output impedance of the amplifier proper. That resistor corrects the output RL problem, but it also acts as a 4dB attenuator, which increases the NF and reduces both the gain and the IP3 performance. In cases #2 (your 2-transformer design) and #3 (my design) there is no output transistor, so the NF, gain, and IP3 are not adversely impacted. Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/
6247	2011-05-04 14:45:45	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Charlie the Tuner Rev 0.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Charlie the Tuner: An Antenna Preselector and Matcher for QRP and SWL Applications You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Charlie%20the%20Tuner%20Rev%200.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6308	2011-05-16 08:07:39	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Antenna Canceller Prototype 02.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Antenna Interference Canceller Prototype You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Antenna%20Canceller%20Prototype%2002.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
6352	2011-05-30 14:33:15	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Audio Voltmeter/AR Article.doc Uploaded by : kerrypwr <planningpower@iprimus.com.au> Description : Description You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Audio%20Voltmeter/AR%20Article.doc To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, kerrypwr <planningpower@iprimus.com.au>
6782	2011-11-05 18:08:10	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /fcounter.vhd Uploaded by : jasonb1963 <jasonb1963@yahoo.com> Description : VHDL Implementation of a 5-digit Frequency Counter You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/fcounter.vhd To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, jasonb1963 <jasonb1963@yahoo.com>
7064	2011-12-20 13:44:33	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Filterproblem.pdf Uploaded by : ha5rxz <ha5rxz@gmail.com> Description : From A Problem Of Impedance You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Filterproblem.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, ha5rxz <ha5rxz@gmail.com>
7519	2012-05-29 15:36:23	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Capacitance Charge Voltage Demo prac.pdf Uploaded by : radioaustralia123 <maillist@virginbroadband.com.au> Description : Capacitance Practical Exercise You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Capacitance%20Charge%20Voltage%20Demo%20prac.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, radioaustralia123 <maillist@virginbroadband.com.au>
7560	2012-07-02 12:25:11	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Nano vacuum tube paper May2012.pdf Uploaded by : arfghans <gwj@spamcop.net> Description : Nano vacuum tube fabricated in Silicon You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Nano%20vacuum%20tube%20paper%20May2012.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, arfghans <gwj@spamcop.net>
7648	2012-07-30 06:27:10	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Audio Noise Blanker 01.pdf Uploaded by : chris3trask <christrask@earthlink.net> Description : Description of simple audio noise limiter and noise blanker You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Audio%20Noise%20Blanker%2001.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, chris3trask <christrask@earthlink.net>
7820	2012-09-29 05:35:49	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /MC1496WW.PDF Uploaded by : gi0gdp <gi0gdp@yahoo.co.uk> Description : MC1496 linearity improvements You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/MC1496WW.PDF To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, gi0gdp <gi0gdp@yahoo.co.uk>
8273	2013-02-20 07:24:58	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /MicroR2mods.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : Suggested mods for KK7B MicroR2 DC receiver You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/MicroR2mods.pdf To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, i7swx <i7swx@yahoo.com>
8645	2013-05-09 05:24:04	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Amplifier Band Decoder.jpg Uploaded by : ha5rxz <ha5rxz@gmail.com> Description : Amplifier Band Decoder You can access this file at the URL: http://groups.yahoo.com/group/emrfd/files/Amplifier%20Band%20Decoder.jpg To learn more about file sharing for your group, please visit: http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.html Regards, ha5rxz <ha5rxz@gmail.com>
9821	2014-03-10 10:20:21	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N5EM - SA Info/70 mHz LPF - 100 kHz through 550 mHz Swseep.pdf Uploaded by : n5emqrp <n5emqrp@gmail.com> Description : Sweep of SMT LPF You can access this file at the URL: https://groups.yahoo.com/group/emrfd/files/N5EM%20-%20SA%20Info/70%20mHz%20LPF%20-%20100%20kHz%20through%20550%20mHz%20Swseep.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, n5emqrp <n5emqrp@gmail.com>
10063	2014-05-24 07:51:57	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Find VFO drift.docx Uploaded by : jorschei <kthkit@xs4all.nl> Description : Find Temp drift in a VFO module and ground plane You can access this file at the URL: https://groups.yahoo.com/group/emrfd/files/PE1KTH/Find%20VFO%20drift.docx To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
10117	2014-06-29 13:46:54	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/7 MHz E amplifier.gif Uploaded by : jorschei <kthkit@xs4all.nl> Description : CALCULATION 7 CLASS E AMPLFIER You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/7%20MHz%20E%20amplifier.gif To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
10231	2014-08-10 11:27:45	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /G3WIE/LZ1OV RFamp.pdf Uploaded by : g3wie <g3wie@crystalhobs.org.uk> Description : In memoriam: Another of Stefan's designs. RIP. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/G3WIE/LZ1OV%20RFamp.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, g3wie <g3wie@crystalhobs.org.uk>
10242	2014-09-10 00:29:38	augustinetez	Re: New file uploaded to emrfd
For those that have read this pdf and wondered about the original circuit by EU1TT, it can be found here: http://dl2kq.de/trx/2-6.htm You will need Google Translate or similar as it is written in Russian. Terry VK5TM
10252	2014-09-13 19:13:09	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VU2ESE/guanella2.png Uploaded by : ashhar_farhan <farhanbox@gmail.com> Description : guanella experiments You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VU2ESE/guanella2.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, ashhar_farhan <farhanbox@gmail.com>
10590	2014-12-12 04:12:15	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/EXAMPLE OF AN FUNCTIONAL MODUL 34x20 mm SIZE.BMP Uploaded by : jorschei <kthkit@xs4all.nl> Description : Experimental functional adapter modul with 10SMOP chip and 0603 components You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/EXAMPLE%20OF%20AN%20FUNCTIONAL%20MODUL%2034x20%20mm%20SIZE.BMP To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
10684	2014-12-30 04:03:56	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/AAVID HEATSINK.bmp Uploaded by : jorschei <kthkit@xs4all.nl> Description : AAVID PCB SMD HEATSINK FOR FETS OR TRANSISTORS You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/AAVID%20%20HEATSINK.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
10805	2015-03-12 03:12:15	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Si5351A CLOCK GENERATOR VFO/AN OTHER Si5351A DIL MODULE AS MIXER VFO..doc Uploaded by : jorschei <kthkit@xs4all.nl> Description : AN OTHER Si5351A AS MIXER VFO You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/Si5351A%20%20CLOCK%20GENERATOR%20VFO/AN%20OTHER%20Si5351A%20DIL%20MODULE%20AS%20MIXER%20VFO..doc To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
10841	2015-03-14 11:17:27	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/ImageRej_n_SSB_mixers.pdf Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : WJ tech note for image rejecting mixers You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/ImageRej_n_SSB_mixers.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
11047	2015-05-01 12:52:23	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/SDR PSoC5 RECEIVER 74CBTLV3253 I&Q MIXER.jpg Uploaded by : jorschei <kthkit@xs4all.nl> Description : Test setup SDR receiver with Freesoc mini PSoC5 signal processing and 74CBTLV3253 I&Q mixer and Si5351A VFO. SSB soundfiles on noisy 80 meterband and AM on 1008KHz MW You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/SDR%20PSoC5%20RECEIVER%2074CBTLV3253%20I%26Q%20MIXER.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11048	2015-05-01 12:55:35	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/80m NAN_2 PSoC sound.mp3 Uploaded by : jorschei <kthkit@xs4all.nl> Description : SSB on noisy 80 meter, ham communication demodulated by the PSoC5 processor recorded by PA0RWE test set up. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/80m%20NAN_2%20%20PSoC%20sound.mp3 To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11049	2015-05-01 13:00:09	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/1008 AM PSoC sound file.mp3 Uploaded by : jorschei <kthkit@xs4all.nl> Description : AM soundfile demodulated by PSoC5 on 1008KHzMW , front mixer 74CBTLV3253 and Si5351A integrated VFO on the right green PCB. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/1008%20AM%20%20PSoC%20sound%20file.mp3 To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11056	2015-05-02 10:27:40	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-8001-BI DIRECTIONELE MF-A.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Bi-directional IF amplfier with FET's type A You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-8001-BI%20DIRECTIONELE%20MF-A.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11057	2015-05-02 10:28:00	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-8003-BI DIRECTIONELE MF-C.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Bi-directional IF amplfier with FET's type C You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-8003-BI%20DIRECTIONELE%20MF-C.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11058	2015-05-02 10:28:54	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/s-8007-WERKBLAD-BI-DIR-MF BF1005 455KHz.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Bi-directional IF amplfier with BF1005 FET's You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/s-8007-WERKBLAD-BI-DIR-MF%20BF1005%20%20455KHz.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11059	2015-05-02 10:30:16	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-8010-WERKBLAD-BI-DIR-MF BF1005 8 MHz.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Example of a Bi directional IF strip experimental You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-8010-WERKBLAD-BI-DIR-MF%20BF1005%208%20MHz.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11063	2015-05-05 03:04:35	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-8010-WERKBLAD-BI-DIR-MF BF1005 8 MHz.BMP Uploaded by : jorschei <kthkit@xs4all.nl> Description : S-8010-WERKBLAD-BI-DIR-MF 8 MHz with BF1005 Clearer bitmap version You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-8010-WERKBLAD-BI-DIR-MF%20BF1005%208%20MHz.BMP To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11064	2015-05-05 20:16:39	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /WERKBLAD-BI-DIR-MF BF1005 8 MHz.png Uploaded by : vasilyivanenko <vasilyivanenko@yahoo.ca> Description : File : /PE1KTH/S-8010-WERKBLAD-BI-DIR-MF BF1005 8 MHz.png originally Uploaded by : jorschei on May 5 You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/WERKBLAD-BI-DIR-MF%20BF1005%208%20MHz.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, vasilyivanenko <vasilyivanenko@yahoo.ca>
11065	2015-05-05 21:09:32	vasilyivanenko	Re: New file uploaded to emrfd
Thanks -- sorry that raw bmp file hurt my limited phone data plan. I compressed that file to a lossless LZW format -- png [ filesize = 44.7 kB ]. I wanted to re-post it, but wonder if it is copyright? Thanks Todd
11066	2015-05-06 03:57:30	jorschei	Re: New file uploaded to emrfd
Feel free to use the data in my EMRF PE1KTH files for non commercial purpose. 73"Joris PE1KTH
11070	2015-05-06 14:14:57	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K1RF CW waveshaping lookup table.xlsx Uploaded by : k1rf_digital_steve <sbdick@optonline.net> Description : Based on Blackman Harris Window. See QEX May/June 2006 "CW Shaping in DSP software" by Alex Shovkoplyas, VE3NEA. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K1RF%20CW%20waveshaping%20lookup%20table.xlsx To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, k1rf_digital_steve <sbdick@optonline.net>
11093	2015-05-17 08:12:01	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/Twisted-Wire_Quadrature_Hybrids.pdf Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : a great article on twisted wire hybrids used in many phasing radios. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/Twisted-Wire_Quadrature_Hybrids.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
11094	2015-05-17 08:13:54	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/Phasing_SSB_Generator_.pdf Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : Article on dong a phasing TX (or can be used as RX reverising RF and audio paths) using passive means. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/Phasing_SSB_Generator_.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
11095	2015-05-17 08:17:09	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/minir2.pdf Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : collected information for MiniR2 by Kanga includes a bunch of supporting articles. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/minir2.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
11143	2015-06-07 09:49:39	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/k8ki-mixer-08-2009.pdf Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : A presentation from 2009 on high level mixers used in compatition grade radios (of the day). Some of them still apply. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/k8ki-mixer-08-2009.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
11150	2015-06-09 06:03:30	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Pocked Si4835 dsp receiver bottom view.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : Pocket size Si4835 receiver You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/Pocked%20Si4835%20dsp%20receiver%20bottom%20view.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11151	2015-06-09 06:05:04	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Pocked Si4835 dsp receiver top view.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : Pocket Si4835 bottom view receiver You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/Pocked%20Si4835%20dsp%20receiver%20top%20view.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11152	2015-06-09 06:07:26	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-1012-02 AM-FM-SW Si4835 LI-ION Schematic.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Pocket Si4835 AM-FM-SW li-ion schematic receiver You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-1012-02%20%20AM-FM-SW%20Si4835%20LI-ION%20Schematic.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11218	2015-06-21 13:14:44	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PCB LAYOUT.jpg Uploaded by : lmeeny <emachak@stny.rr.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PCB%20LAYOUT.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, lmeeny <emachak@stny.rr.com>
11219	2015-06-21 13:15:53	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VOLTAGE REGULATORS.bmp Uploaded by : lmeeny <emachak@stny.rr.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VOLTAGE%20REGULATORS.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, lmeeny <emachak@stny.rr.com>
11220	2015-06-21 13:16:10	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /SAMPLING CLOCKS.bmp Uploaded by : lmeeny <emachak@stny.rr.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/SAMPLING%20CLOCKS.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, lmeeny <emachak@stny.rr.com>
11221	2015-06-21 13:16:25	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /RF PREAMP.bmp Uploaded by : lmeeny <emachak@stny.rr.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/RF%20PREAMP.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, lmeeny <emachak@stny.rr.com>
11222	2015-06-21 13:16:48	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /QUAD DETECTOR.bmp Uploaded by : lmeeny <emachak@stny.rr.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/QUAD%20DETECTOR.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, lmeeny <emachak@stny.rr.com>
11223	2015-06-21 13:17:04	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /IQ PREAMP.bmp Uploaded by : lmeeny <emachak@stny.rr.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/IQ%20PREAMP.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, lmeeny <emachak@stny.rr.com>
11362	2015-07-25 03:18:16	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Si5351A CLOCK GENERATOR VFO/S-1005-01 PSoC5 HF- BLOCKSCHEMATIC.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : PSoC5 receiver with RF front mixer You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/Si5351A%20%20CLOCK%20GENERATOR%20VFO/S-1005-01%20%20PSoC5%20%20HF-%20BLOCKSCHEMATIC.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11363	2015-07-25 03:19:21	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Si5351A CLOCK GENERATOR VFO/S-1005-08 74CBTLV3253 MIXER MODULE+Si5351A.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : 74CBTLV3253 mixer with Si5351A clock generator VFO You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/Si5351A%20%20CLOCK%20GENERATOR%20VFO/S-1005-08%20%2074CBTLV3253%20MIXER%20MODULE%2BSi5351A.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11365	2015-07-25 03:30:25	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-1005-01 PSoC5 HF- BLOCKSCHEMATIC.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Block schematic PSoC5 RX with Si5351A You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-1005-01%20%20PSoC5%20%20HF-%20BLOCKSCHEMATIC.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11366	2015-07-25 03:31:21	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-1005-08 74CBTLV3253 MIXER MODULE+Si5351A.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : 74CBTLV3253 mixer modul You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-1005-08%20%2074CBTLV3253%20MIXER%20MODULE%2BSi5351A.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11374	2015-07-27 07:39:16	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/002.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : SDR FRONT END FOR PSoC5 STAND ALONE RECEIVER You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/002.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11375	2015-07-27 07:44:32	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/PSoC5 I&Q processor for stand alone SDR receiver.jpg Uploaded by : jorschei <kthkit@xs4all.nl> Description : PSoC5 - SDR module You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/PSoC5%20I%26Q%20processor%20for%20stand%20alone%20SDR%20receiver.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11376	2015-07-27 07:48:31	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/Rob PAoRWE stand alone SDR front RX.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : PAoRWE PSoC5 stand alone SDR RX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/Rob%20PAoRWE%20%20stand%20alone%20SDR%20front%20RX.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11377	2015-07-27 08:07:04	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH/S-1005-03 PSoC5 ADAPER 52 x 52 MM MODULE.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : PSoC5 processor for SDR stand alone RX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH/S-1005-03%20%20PSoC5%20%20ADAPER%2052%20x%2052%20MM%20MODULE.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11378	2015-07-27 20:15:59	vasilyivanenko	Re: New file uploaded to emrfd
Nice work. Thank-you.
11379	2015-07-30 03:35:14	jorschei	Re: New file uploaded to emrfd
Hello,  the PE1KTH files are closed. 73' PE1KTH
11392	2015-08-04 18:34:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KE4MIQ/DVT-B-BPF-Ckt70.png Uploaded by : jmlynesjr <jmlynesjr@gmail.com> Description : BPF from NV article. LTspice version. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KE4MIQ/DVT-B-BPF-Ckt70.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jmlynesjr <jmlynesjr@gmail.com>
11393	2015-08-04 18:35:37	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KE4MIQ/DVT-B-BPF-Response70.png Uploaded by : jmlynesjr <jmlynesjr@gmail.com> Description : BPF from NV article. LTspice response graph. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KE4MIQ/DVT-B-BPF-Response70.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jmlynesjr <jmlynesjr@gmail.com>
11400	2015-08-06 04:42:42	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/IMG_2162.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : PIC controled module for Si5351A synthesizer pocket RTX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/IMG_2162.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11401	2015-08-06 04:45:10	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/Si5351A synthesizer 015.jpg Uploaded by : jorschei <kthkit@xs4all.nl> Description : Si5351A VFO +BFO module for super RTX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/Si5351A%20synthesizer%20015.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11402	2015-08-06 04:48:31	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/IMG_2168.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : Mini Si5351A +PIC+OLED module for pocket RTX under contruction You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/IMG_2168.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11427	2015-08-07 02:06:08	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/HIGH TECH AM RECEIVER Si4835.doc Uploaded by : jorschei <kthkit@xs4all.nl> Description : Si4835 report You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/HIGH%20TECH%20AM%20RECEIVER%20%20Si4835.doc To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11428	2015-08-07 02:07:32	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/AM-FM Si4835 ONTVANGER- V2- PCB 001.jpg Uploaded by : jorschei <kthkit@xs4all.nl> Description : The PCB's for the portable Si4835 receiver You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/AM-FM%20Si4835%20ONTVANGER-%20V2-%20PCB%20001.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11429	2015-08-07 02:10:16	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/AM FM ontvanger P3060601.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : Completed Si4835 receiver in housing You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/AM%20FM%20ontvanger%20P3060601.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11430	2015-08-07 02:16:09	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/S-1012-02 Si4835 RECEIVER SCHEMA.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Si4835 receiver schematic You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/S-1012-02%20%20Si4835%20RECEIVER%20%20SCHEMA.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11449	2015-08-08 06:06:33	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/ANT - BOOK ISBN3-88976-043-0.bmp Uploaded by : jorschei <kthkit@xs4all.nl> Description : Red active antenna book You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/ANT%20-%20BOOK%20ISBN3-88976-043-0.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11450	2015-08-08 06:07:02	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/MONOPOOL ANT.bmp Uploaded by : jorschei <kthkit@xs4all.nl> Description : Red's monopool active ant You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/MONOPOOL%20ANT.bmp To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11451	2015-08-08 06:08:04	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/WIDEBAND CLOSED LOOP.doc Uploaded by : jorschei <kthkit@xs4all.nl> Description : My broadband closed loop antenna You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/WIDEBAND%20CLOSED%20LOOP.doc To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11452	2015-08-08 06:16:07	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/WIDEBAND CLOSED LOOP.doc Uploaded by : jorschei <kthkit@xs4all.nl> Description : Wideband closed loop antenna You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/WIDEBAND%20CLOSED%20LOOP.doc To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11460	2015-08-09 05:31:05	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/IMG_2171.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : Dan Tayloe mixer PCB and intergated I2C-Si5351A VFO+LT6231 Op-Amp I&Q output You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/IMG_2171.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
11582	2015-09-05 07:04:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /2E0RVI/New-Oscillator-Spice.PNG Uploaded by : ravimiranda <ravimiranda@gmail.com> Description : Oscillator section You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/2E0RVI/New-Oscillator-Spice.PNG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, ravimiranda <ravimiranda@gmail.com>
11891	2015-11-15 19:01:04	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /AADE.pdf Uploaded by : bob_ledoux <bobledoux@proaxis.com> Description : Original Neil Hecht pdf article for AADE LC meter as was available for download on his site. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/AADE.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bob_ledoux <bobledoux@proaxis.com>
11913	2015-11-26 11:25:46	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /2sc5337.pdf Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : possible post mixer amp, possible qrp output transistor You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/2sc5337.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
11950	2015-12-06 13:53:38	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /filter-pix.zip Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : KST data plots of crystal filter sweeps You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/filter-pix.zip To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
12161	2016-01-05 06:13:24	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/S-1005-08 74CBTLV3253 MIXER MODULE+Si5351A.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Tayloe front end 100Khz - 30MHz You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/S-1005-08%20%2074CBTLV3253%20MIXER%20MODULE%2BSi5351A.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
12298	2016-02-08 09:57:26	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TTL SSB exciter.pdf Uploaded by : jimk8rz <k8rz@etcmail.com> Description : A novel SSB exciter based on 7400 TTL from Ham Radio Magazine archives You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TTL%20SSB%20exciter.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jimk8rz <k8rz@etcmail.com>
12341	2016-02-11 12:20:44	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /kst_demo.zip Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : how to use powerful data plotting program KST You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/kst_demo.zip To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
12361	2016-02-15 05:13:29	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Reducing Voltage Reg Noise.pdf Uploaded by : jimk8rz <k8rz@etcmail.com> Description : Methods of Reducing Power Supply Noise - EDN Article You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/Reducing%20Voltage%20Reg%20Noise.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jimk8rz <k8rz@etcmail.com>
12377	2016-02-15 12:23:20	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VK2TIL (kerrypwr)/RF Transformers/Philips ECO6907 HF Transformer Design Part 1.pdf Uploaded by : kerrypwr <planningpower@iprimus.com.au> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VK2TIL%20%28kerrypwr%29/RF%20Transformers/Philips%20ECO6907%20HF%20Transformer%20Design%20Part%201.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kerrypwr <planningpower@iprimus.com.au>
12378	2016-02-15 12:23:35	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VK2TIL (kerrypwr)/RF Transformers/Philips ECO7213 HF Transformer Design Part 2.pdf Uploaded by : kerrypwr <planningpower@iprimus.com.au> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VK2TIL%20%28kerrypwr%29/RF%20Transformers/Philips%20ECO7213%20HF%20Transformer%20Design%20Part%202.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kerrypwr <planningpower@iprimus.com.au>
12437	2016-02-23 04:35:58	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /FSA3157-Filters-switching.jpg Uploaded by : i7swx <i7swx@yahoo.com> Description : Suggested Filters switching (low signals) using FSA3157 - 73 de Gian I7SWX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/FSA3157-Filters-switching.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, i7swx <i7swx@yahoo.com>
12441	2016-02-24 05:55:41	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /FSA3157-Filters-switchingV2.JPG Uploaded by : i7swx <i7swx@yahoo.com> Description : Suggested Filters switching (low signals) using FSA3157- Updated schematic - 73 de Gian I7SWX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/FSA3157-Filters-switchingV2.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, i7swx <i7swx@yahoo.com>
12445	2016-02-25 08:48:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE4250-BPFilters-switching.JPG Uploaded by : i7swx <i7swx@yahoo.com> Description : This is the filters switching suggested using the PE4250 in place of the FSA3157 as presented on a previous schematic. 73 Gian, I7SWX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE4250-BPFilters-switching.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, i7swx <i7swx@yahoo.com>
12449	2016-02-26 09:49:14	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /PE1KTH experiments/PE4239 Filters switching.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : This is a suggested Filters switching using the PE4239. Schematic is replacing the previous published PE4250, not recommanded due to spuries internally generated on low bands. A derating curve below 10MHz is also reported. 73 Gian I7SWX You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/PE1KTH%20%20experiments/PE4239%20Filters%20switching.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, i7swx <i7swx@yahoo.com>
12503	2016-03-14 17:01:28	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K1RF/quad 12 MHz roofing filter with diplexer 1-30 MHz ret loss.png Uploaded by : k1rf_digital_steve <sbdick@optonline.net> Description : return loss plot 1-30 MHz 12 MHz quadrature coupled roofing filter with bridged T diploexer You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K1RF/quad%2012%20MHz%20roofing%20filter%20with%20diplexer%201-30%20MHz%20ret%20loss.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, k1rf_digital_steve <sbdick@optonline.net>
12562	2016-03-31 20:54:59	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /stab-osc1-4.jpg Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : copyrighted for education use only You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/stab-osc1-4.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
12575	2016-04-01 15:48:47	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Stable LC Oscillators.pdf Uploaded by : trc_wm <niels@b-lex.nl> Description : Cleaned version of the files uploaded by KM6SN on stable LC oscillators. -- for educational use only! -- You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/Stable%20LC%20Oscillators.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, trc_wm <niels@b-lex.nl>
12600	2016-04-05 04:29:30	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /EMRFD Vackar 4_7.pdf Uploaded by : jwharding3 <jwharding3@yahoo.com> Description : Low Noise Vackar project You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/EMRFD%20Vackar%204_7.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwharding3 <jwharding3@yahoo.com>
12665	2016-04-18 19:12:43	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /villard-cage.jpg Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : Villard cage vhf direction finding apparatus. A shielded dipole with the receiver mounted INSIDE the shield. Provides extremely deep nulls off the end, perfect for locating the source of a signal. Note the dipole inside the cage is suspended at the ends with fishing-line insulators. The dipole does not have to be resonant- it will work fairly well across a wide (100 MHz?) bandwidth. The device shown was used to accurately locate a bad insulator on a power pole that was generating tons of RF at HF. A VHF harmonic of such noise is much easier to pinpoint. The Villard cage ("Cage" herein) offers such a sharp and deep null off the ends that it is possible to identify which crossarm on the pole has the problem; it is even possible to identify which side of the crossarm has the problem. The Cage is constructed with bare copper wire stiff enough to be self-supporting. Four long wires are arranged in a square (when viewed down the axis of the dipole), and the ends of the cage wires are bent into a taper and soldered together. At some arbitrary positions along the length of the cage install a wire "Square" which matches the cross-section of the Cage, and solder the wire Square to the cage wires. The Square dimensions and placement are NOT critical, and is mostly for physical support, and partially for current balance. The Cage apparatus is ideal for accurately locating the source of any VHF signal. I used a cheap Radio Shack Aircraft AM receiver; any receiver will do. The important part is EVERYTHING MUST BE PHYSICALLY WITHIN THE CAGE- NO WIRES MAY ENTER OR EXIT THE CAGE. The example shown in this picture has been malformed a bit from careless storage over the years. I suspect it would work perfectly well just the way it is shown. A little more tension on the dipole would be nice to make it more straight. Have fun. KM6SN You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/villard-cage.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
12666	2016-04-18 19:26:07	N0UU	Re: AD9910 software?
Can anyone give me a link to software (possibly Arduino) to control the AD9910 from both the keyboard and a rotary encoder? Lots of sort of stuff on the WEB, but I'm missing one to simply control the board (with an IF offset). Thanks, N0UU
12689	2016-04-21 03:08:36	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /hi-stab-osc1.zip Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : Complete and clean pdf copy of article on high stability LC oscillators, from RF Design "Oscillator Design Handbook" , copyright 1995. Two zip files were needed to circumvent 10mb upload limit. This is 1 of 2. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/hi-stab-osc1.zip To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
12690	2016-04-21 03:09:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /hi-stab-osc2.zip Uploaded by : km6sn <rod.km6sn@wildblue.net> Description : Second zip file of High Stability Oscillator You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/hi-stab-osc2.zip To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, km6sn <rod.km6sn@wildblue.net>
12947	2016-06-09 16:00:55	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /S-1005-01 PSoC5 HF- BLOCKSCHEMATIC.GIF Uploaded by : jorschei <kthkit@xs4all.nl> Description : Block schematic PSoC5 experimetal receiver You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/S-1005-01%20%20PSoC5%20%20HF-%20BLOCKSCHEMATIC.GIF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
12999	2016-07-05 17:31:48	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N7EU/Heathkit2305kHzFilter.pages Uploaded by : cwfingertalker <cwfingertalker@gmail.com> Description : Heath kit 2305 kHz 4 pole crystal filter schematic You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N7EU/Heathkit2305kHzFilter.pages To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, cwfingertalker <cwfingertalker@gmail.com>
13013	2016-07-10 12:00:28	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K5ESS/Inductor Calculation Table.jpg Uploaded by : nothdurftm <k5ess.nothdurft@verizon.net> Description : Shorted Turns Measured vs calculated values You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K5ESS/Inductor%20Calculation%20Table.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, nothdurftm <k5ess.nothdurft@verizon.net>
13030	2016-07-18 03:46:34	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - RadCom 12-83.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20RadCom%2012-83.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13031	2016-07-18 03:46:44	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - HB9BWY Sprat 102(1).PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20HB9BWY%20Sprat%20102%281%29.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13032	2016-07-18 03:47:01	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - Miho 1977.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20Miho%201977.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13033	2016-07-18 03:47:19	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - HB9BWY Sprat 102.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20HB9BWY%20Sprat%20102.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13034	2016-07-18 03:47:55	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - elrad 1980.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20elrad%201980.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13035	2016-07-18 03:48:11	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - elektor 05-84.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20elektor%2005-84.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13036	2016-07-18 03:48:30	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - DK1HE.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20DK1HE.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13037	2016-07-18 03:48:45	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - 80m_DF.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20%20%20%2080m_DF.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13038	2016-07-18 04:56:42	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /6306.pdf Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/6306.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13039	2016-07-18 06:15:08	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /TCA 440 /TCA440 - Hael copyright.PDF Uploaded by : kf8zn <kf8zn@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/TCA%20440%20/TCA440%20-%20Hael%20copyright.PDF To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kf8zn <kf8zn@yahoo.com>
13040	2016-07-19 02:45:50	i7swx	Re: New file uploaded to emrfd
Hi Mike, thank you very much for the several files about TCA440 you uploaded. Best  73 Gian I7SWX
13041	2016-07-20 13:26:43	kf8zn	Re: New file uploaded to emrfd
Gian, You are welcome! I am hoping to find more SSB/DSB Circuits. Mike: AC2Q
13214	2016-10-22 09:00:35	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /QRP Order 3 BPF with bifilar-wound L1 and L3.pdf Uploaded by : k1rf_digital_steve <sbdick@optonline.net> Description : QRP order 3 Chebychev bandpass filter based on the two-part article in the May-June 1998 QST by Ed Wetherhold, W3NQN entitled "Clean up your signals with bandpass filters". This uses T50 toroids and 500V silvered mica caps. PCB is available from Oshpark at https://oshpark.com/shared_projects/RWNJIwoJ You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/QRP%20Order%203%20BPF%20with%20bifilar-wound%20L1%20and%20L3.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, k1rf_digital_steve <sbdick@optonline.net>
13225	2016-10-27 05:06:52	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K1RF 40M bifilar input and output bandpass filter .asc Uploaded by : k1rf_digital_steve <sbdick@optonline.net> Description : LT SPICE model of 40 meter order 3 Chebychev filter with bifilar-wound input and output inductors You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K1RF%2040M%20bifilar%20input%20and%20output%20bandpass%20filter%20.asc To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, k1rf_digital_steve <sbdick@optonline.net>
13279	2016-11-07 13:49:18	IEN	Re: New file uploaded to emrfd
 Hi How many watts the filter can handle? 73   norberto.modanesi@gmail.com San Nicolás ----- Original Message -----
13431	2017-01-01 18:16:52	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/PC260003 (bottom compartment).jpg Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : Bottom compartment of 20 meter transceiver You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/PC260003%20%28bottom%20compartment%29.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
13519	2017-02-02 03:15:53	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /YO6SSW/rf-signal-generator.png Uploaded by : yo6ssw <benishor@gmail.com> Description : RF signal generator block diagram You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/YO6SSW/rf-signal-generator.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, yo6ssw <benishor@gmail.com>
13530	2017-02-06 03:29:48	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /GWØOAJ/52 Mhz.jpg Uploaded by : jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com> Description : 52 MHz showing a gash sprog plus also the 100 MHz You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/GW%C3%98OAJ/52%20Mhz.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com>
13531	2017-02-06 03:30:56	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /GWØOAJ/ADE-1 and 3dB Pads.jpg Uploaded by : jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com> Description : ADE-1 in a box You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/GW%C3%98OAJ/ADE-1%20and%203dB%20Pads.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com>
13532	2017-02-06 03:31:52	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /GWØOAJ/Hooked Up.jpg Uploaded by : jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com> Description : As it says... You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/GW%C3%98OAJ/Hooked%20Up.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com>
13533	2017-02-06 03:33:19	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /GWØOAJ/Sweep to 500 MHz - Filter In.jpg Uploaded by : jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com> Description : Spectrum sweep to 500 MHz -filter IN You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/GW%C3%98OAJ/Sweep%20to%20500%20MHz%20-%20Filter%20In.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com>
13534	2017-02-06 03:34:28	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /GWØOAJ/Sweep to 500 MHz - Filter Out.jpg Uploaded by : jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com> Description : Spectrum sweep to 500MHz - filter OUT You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/GW%C3%98OAJ/Sweep%20to%20500%20MHz%20-%20Filter%20Out.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com>
13536	2017-02-06 07:25:48	John	Re: New file uploaded to emrfd
13541	2017-02-06 10:00:12	John Marshall	Re: New file uploaded to emrfd
John, Nice "proof of concept" work on Adrian's proposal. It does look like a viable approach. You noted "real problems with harmonics" at the bottom end of the output range. I wonder if that might be reduced by applying the square wave to the mixer's LO port and taking output from the IF port. The IF port should work better at low frequencies. I assume you used the Q-BIT amp because of its reasonable input/output match rather than because gain was needed. Those amps have very good specs but I wonder if it contributed to the harmonic content of the output. Some more gain and an AGC loop to level the output and this looks pretty useful. John, KU4AF Pittsboro, NC
13542	2017-02-06 10:11:49	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /YO6SSW/sweeper-no-input.png Uploaded by : yo6ssw <benishor@gmail.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/YO6SSW/sweeper-no-input.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, yo6ssw <benishor@gmail.com>
13543	2017-02-06 10:11:55	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /YO6SSW/sweeper-si570-output.png Uploaded by : yo6ssw <benishor@gmail.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/YO6SSW/sweeper-si570-output.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, yo6ssw <benishor@gmail.com>
13544	2017-02-06 10:12:03	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /YO6SSW/sweeper-70MHz-lpf.png Uploaded by : yo6ssw <benishor@gmail.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/YO6SSW/sweeper-70MHz-lpf.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, yo6ssw <benishor@gmail.com>
13545	2017-02-06 10:12:08	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /YO6SSW/sweeper-vhf-filter.png Uploaded by : yo6ssw <benishor@gmail.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/YO6SSW/sweeper-vhf-filter.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, yo6ssw <benishor@gmail.com>
13546	2017-02-06 10:12:18	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /YO6SSW/sweeper-vhf-filter-wide-sweep.png Uploaded by : yo6ssw <benishor@gmail.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/YO6SSW/sweeper-vhf-filter-wide-sweep.png To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, yo6ssw <benishor@gmail.com>
13547	2017-02-06 10:31:08	Adrian Scripcă	Re: New file uploaded to emrfd
Hi John, Very nice results you got there! It looks pretty good, even better than I expected. As for the 100Mhz leak-through signal, what about we move both oscillators up 50Mhz? As in having the Si570 tune from 150.1Mhz to 250MHz and have the other fixed oscillator run at 150MHz? It should clear things up a bit I reckon. It would be interesting to make the changes and compare the results if you have the posibility. Thanks! Adrian, YO6SSW
13548	2017-02-06 11:32:32	John	Re: New file uploaded to emrfd
13549	2017-02-06 15:58:24	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /GWØOAJ/RF Signal Generator/W7ZOI 50 Ohm Feedback Amp.jpg Uploaded by : jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/GW%C3%98OAJ/RF%20Signal%20Generator/W7ZOI%2050%20Ohm%20Feedback%20Amp.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm <jm54w5ubsnahhekz7byc5zl3v2ii5d6q2wxveutm@yahoo.com>
13550	2017-02-06 21:16:01	John	Re: New file uploaded to emrfd - Re: Sig Gen
13556	2017-02-07 10:44:42	Adrian Scripcă	Re: New file uploaded to emrfd - Re: Sig Gen
Awesome, John! I can almost see it coming together. Now we just need more gain which we might obtain say with a monolithic amp (and an AGC). I'm curious how much will the signal increase compared to the background noise. If that becomes a problem, I suppose we can further filter with a switchable bandpass filter. 73! Adrian, YO6SSW
13650	2017-03-03 09:33:15	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /S-6204-05 TEST X-TAL VCXO SCHEMATIC.JPG Uploaded by : jorschei <kthkit@xs4all.nl> Description : Test schematics VCO FVO,s You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/S-6204-05%20%20TEST%20X-TAL%20VCXO%20SCHEMATIC.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jorschei <kthkit@xs4all.nl>
13651	2017-03-03 11:43:28	blumu	Test VCXO schematics
Effusive thanks for this upload, Jorschei. This is the kind of stuff I like to play with! MichaelUK .............................
13652	2017-03-03 15:28:53	jorschei	Re: Test VCXO schematics
Michael, Be aware thad crystal with smaller size has fewer shifts. Crystals with the specified 30 pF capacitor found to be the best shift. Modern SMD crystals specified for 12-15 pF has less shift I found. A choke in series with the Crystal and capacitor shift the frequency a little above the specified frequency and the capacitor tuned them lower. 73” Joris
13675	2017-03-10 08:46:44	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /IU4IRC/SDR research paper.pdf Uploaded by : riccardo451 <ricky451@hotmail.it> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/IU4IRC/SDR%20research%20paper.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, riccardo451 <ricky451@hotmail.it>
13677	2017-03-10 09:44:42	Graham / KE9H	Re: New file uploaded to emrfd
What is going on here? When I try to download "SDR research paper.pdf" I get redirected to a site named "https://xa.yimg.com" and my security software goes nuts. Is this a legitimate yahoo "image" site, or is this a security hijack? None of the other files in EMRFD do this. --- Graham / KE9H ==
13680	2017-03-10 09:56:51	Andy	Re: New file uploaded to emrfd
I get redirected to a site named "https://xa.yimg.com" and my security software goes nuts. Is this a legitimate yahoo "image" site, or is this a security hijack? It is legitimate.  Yahoo owns that domain.  Yahoo!Groups always use it to "serve" files to us from their servers. When you click on any file from any Yahoo!Group, Yahoo's servers give it to you using a temporary (very long) URL that always begins with xa.yimg.com.  They've been doing this for at least the last several years. Andy
13681	2017-03-10 10:16:35	K5ESS	Re: New file uploaded to emrfd
That is the site the paper is located on.  I get no security warnings.  Running Win 10,  Norton antivirus and Firefox browser. Mike N. K5ESS
13683	2017-03-10 10:25:22	Riccardo Montagut...	Re: New file uploaded to emrfd
I really don't know, I've downloaded it  using my university access so the file has to be virus free... I can try to reupload it 73 Riccardo Inviato da iPhone Il giorno 10/mar/2017, alle ore 18:44, 'Graham / KE9H' ke9h.graham@gmail.com [emrfd] <emrfd@yahoogroups.com> ha scritto:   What is going on here? When I try to download "SDR research paper.pdf" I get redirected to a site named "https://xa.yimg.com" and my security software goes nuts. Is this a legitimate yahoo "image" site, or is this a security hijack? None of the other files in EMRFD do this. --- Graham / KE9H ==
13684	2017-03-10 10:25:38	Riccardo Montagut...	Re: New file uploaded to emrfd
I've just tryed to download the file and I can download it normally under mac osx. The website that you see when you try to download its the doenload link from the server i suppose 73 Riccardo Inviato da iPhone Il giorno 10/mar/2017, alle ore 18:44, 'Graham / KE9H' ke9h.graham@gmail.com [emrfd] <emrfd@yahoogroups.com> ha scritto:   What is going on here? When I try to download "SDR research paper.pdf" I get redirected to a site named "https://xa.yimg.com" and my security software goes nuts. Is this a legitimate yahoo "image" site, or is this a security hijack? None of the other files in EMRFD do this. --- Graham / KE9H ==
13686	2017-03-10 11:30:35	Andy	Re: New file uploaded to emrfd
FYI, the paper I just downloaded from Yahoo's [emrfd] website is identical to my download yesterday from IEEE.  So nothing nefarious got attached to the file by Yahoo or someone else. I think your security software just got a little too paranoid about the URL.  These days it's hard to keep up, playing the leapfrog game. Yahoo!Groups are fairly popular, so there's a good chance your security software may eliminate those warnings before too long, once they realize it's normal and OK. Andy
13690	2017-03-10 15:44:13	Graham / KE9H	Re: New file uploaded to emrfd
Yes. Thank you. I downloaded and it looks fine. My browser security did not like the re-direction, and I did not recognize the xa.yimg.com site. Thanks for retrieving the paper and posting it. --- Graham / KE9H ==
13772	2017-04-05 20:59:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K5ESS/Inductance Measurement.pdf Uploaded by : nothdurftm <k5ess.nothdurft@verizon.net> Description : K5ESS inductance measurement system You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K5ESS/Inductance%20Measurement.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, nothdurftm <k5ess.nothdurft@verizon.net>
13797	2017-04-13 13:42:57	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K1RF/Bandpass Filter measurement anomalies.pdf Uploaded by : k1rf_digital_steve <sbdick@optonline.net> Description : LC Bandpass filter measurement anomalies on lower side of the response curve due to signal generator harmonics You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K1RF/Bandpass%20Filter%20measurement%20anomalies.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, k1rf_digital_steve <sbdick@optonline.net>
14104	2017-06-29 04:06:52	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /FT920-TDA2003mods.pdf Uploaded by : i7swx <i7swx@yahoo.com> Description : Example of bandwidth reduction (hf) on TDA2003 as used in the FT920 to reduce audio noise also. See Rx and Cx values You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/FT920-TDA2003mods.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, i7swx <i7swx@yahoo.com>
14129	2017-07-02 13:40:55	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/VU2ESE coupler.pdf Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : Balanced antenna coupler built by Ashhar Farhan - this is a description of my version of the coupler. Very interesting design! You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/VU2ESE%20coupler.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
14272	2017-09-06 16:50:32	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/170906_05 (good recording - busy band).WAV Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : Uploaded a recording of my Binaural receiver on 40 meters early this evening. In the KI4IO folder. This radio is remarkable! You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/170906_05%20%28good%20recording%20-%20busy%20band%29.WAV To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
14274	2017-09-07 12:48:49	Nick Tsakonas	Re: New file uploaded to emrfd
Hi Jerry, your recordings are indeed a music in my ears!This is a receiver I wanted to build for long time now and it is the first time I hear how it sounds. I had  a different expectation but not very far from that! if it is not too much of a trouble , and you don't mind if I exploit a bit your excitement of making recordings, I would like to ask if possible for a recording in a normally busy band with more than one signals (but not contest crowded) but without tuning at all during the recording. If you could tune to a frequency where there are a few stations around and leave it there for 1 minute, I would like to hear how the signals spread around when you are not tuning and how easy is to make my brain "lock" in any one of them.This is something I always wanted to experience and one of the many reasons I would like to have a receiver like that! I would greatly appreciate if you could provide a recording like that! Great job, thanks for sharing this with us! 73, Nick, SV1DJG
14281	2017-09-07 21:29:33	K5ESS	Re: New file uploaded to emrfd
Been planning to build one of these for a while.  What I would like to hear is a recording of the 20m FT8 or JT65 frequencies.  I bet it is surreal. Mike K5ESS
14284	2017-09-08 19:07:31	jwolczanski	Re: New file uploaded to emrfd
Nick, I'll do exactly as you ask.  Just got back from a little over-night sailboat trip - will make a recording ASAP Jerry KI4IO
14286	2017-09-09 05:12:37	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/Binaural receiver lash-up.jpg Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : Photo of my Binaural receiver lashed up on the bench. I thought I'd play with it for a few weeks before thinking about a proper enclosure. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/Binaural%20receiver%20lash-up.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
14288	2017-09-09 15:36:00	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/170909_00(Binaural recording FOC QSO party).WAV Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : Here's another recording using my binaural receiver - this time it was tuned to just one frequency during a "FOC" operating event (CQ BW). You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/170909_00%28Binaural%20recording%20FOC%20QSO%20party%29.WAV To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
14289	2017-09-09 15:41:29	jwolczanski	Re: New file uploaded to emrfd
OK Nick - there was a "contest" of sorts (an FOC operating event), which had a lot of signals.  I parked the radio on one frequency so you could hear a lot of signals.  What sticks out to me is the ability to copy weak CW signals in the presence of loud signals.  No AGC plus a lot of dynamic range in the audio channel sure helps. Recording is:  170909_00(Binaural recording FOC QSO party).WAV I'll try to make another recording with signals a little more spread out.  These FOC guys were really bunched up. Jerry KI4IO Warrenton, VA
14290	2017-09-09 16:36:27	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/170909_01 (Binaural recording SKCC Weekend Sprint).WAV Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : One more recording with the binaural radio - a smattering of activity from the SKCC week end sprint You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/170909_01%20%28Binaural%20recording%20SKCC%20Weekend%20Sprint%29.WAV To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
14291	2017-09-10 02:04:32	Nick Tsakonas	Re: New file uploaded to emrfd
Hi Jerry, thanks for the recording! this is exactly what I was expecting from a binaural receiver!It is amazing how the signals are positioned and how you can focus on each one of them! It is true that copying a weaker signal when a stringer one appears "nearby" is much easier! I think that the previous recordings (with the tuning) were masking this fantastic effect! I guess that a similar effect is present on SSB although the signals may be overlapping due to their bandwidth! There is a mind-blowing recording by LZ1AQ from his diversity reception experiments http://lz1aq.signacor.com/docs/dr/ssb/2015-04-04%201740.mp3 in which -besides the signals moving around- they are also spread and almost separated! I am wondering how close to that will be your receiver on SSB! Thanks for sharing this with us 73, Nick,SV1DJG PS:you can find more LZ1AQ diversity experiments here: http://www.lz1aq.signacor.com/docs/dr/deversity-reception.htm
14403	2017-10-23 06:49:21	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KVG/XF-9_S42.pdf Uploaded by : bwbangerter <bwbangerter@yahoo.com> Description : KVG XF-9 S43 crystal filter spec sheet You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KVG/XF-9_S42.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bwbangerter <bwbangerter@yahoo.com>
14404	2017-10-23 06:50:12	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KVG/XF-9_S43.pdf Uploaded by : bwbangerter <bwbangerter@yahoo.com> Description : KVG XF-9 S43 crystal filter spec sheet You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KVG/XF-9_S43.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bwbangerter <bwbangerter@yahoo.com>
14405	2017-10-23 06:50:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KVG/XF-9_S44.pdf Uploaded by : bwbangerter <bwbangerter@yahoo.com> Description : KVG XF-9 S44 crystal filter spec sheet You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KVG/XF-9_S44.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bwbangerter <bwbangerter@yahoo.com>
14406	2017-10-23 06:59:35	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KVG/Filter_Schaltplan_A3.sch.pdf Uploaded by : bwbangerter <bwbangerter@yahoo.com> Description : Schematic of board with KVG crystal filters -A You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KVG/Filter_Schaltplan_A3.sch.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bwbangerter <bwbangerter@yahoo.com>
14415	2017-10-26 13:07:33	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Ramp-Step Generator a.pdf Uploaded by : ab7vf <ab7vf@yahoo.com> Description : op-amp ramp/step generator You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/Ramp-Step%20Generator%20a.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, ab7vf <ab7vf@yahoo.com>
14416	2017-10-26 13:11:27	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Curve Tracer/Ramp-Step Generator a.pdf Uploaded by : ab7vf <ab7vf@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/Curve%20Tracer/Ramp-Step%20Generator%20a.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, ab7vf <ab7vf@yahoo.com>
14417	2017-10-26 17:36:41	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Curve Tracer/sweep step circuit.jpg Uploaded by : ab7vf <ab7vf@yahoo.com> Description : Photo of circuit in operation, built off the circuit diagram in file You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/Curve%20Tracer/sweep%20step%20circuit.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, ab7vf <ab7vf@yahoo.com>
14466	2017-12-26 09:46:10	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/Final wrap-up - Binaural Receiver.pdf Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : PDF depicts the final bit of construction on my binaural receiver. You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/Final%20wrap-up%20-%20Binaural%20Receiver.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
14708	2018-05-02 16:55:09	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VK3PE/IF_boards_EI9GQ-based_2.JPG Uploaded by : bellettau <vk3pe@bigpond.com> Description : IF board similar to HyCas You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VK3PE/IF_boards_EI9GQ-based_2.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bellettau <vk3pe@bigpond.com>
14709	2018-05-02 16:55:37	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VK3PE/AGC_boards_EI9GQ-based_12.JPG Uploaded by : bellettau <vk3pe@bigpond.com> Description : IF board similar to HyCas AGC different though You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VK3PE/AGC_boards_EI9GQ-based_12.JPG To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bellettau <vk3pe@bigpond.com>
14710	2018-05-02 16:57:14	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VK3PE/IF_EI9GQ_vk3pe.pdf Uploaded by : bellettau <vk3pe@bigpond.com> Description : IF board sch by EI9GQ. Note very simialr to the HyCas Sch You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VK3PE/IF_EI9GQ_vk3pe.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, bellettau <vk3pe@bigpond.com>
14733	2018-05-03 08:27:08	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/QST_Sep_1950_p17-19_86.pdf Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : THhs is the Circuit for the Mountaineer QST sept 1950 You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/QST_Sep_1950_p17-19_86.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
14785	2018-05-14 19:05:34	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KB1GMX/EMRFD Feedback Amplifier.xls Uploaded by : kb1gmx <kb1gmx@arrl.net> Description : spreadsheet for EMRFD feedback amp You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KB1GMX/EMRFD%20Feedback%20Amplifier.xls To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, kb1gmx <kb1gmx@arrl.net>
14823	2018-05-20 01:37:43	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VU3WJM/TIA PCB single /TIA screen.pdf Uploaded by : vu3wjm <vu3wjm@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VU3WJM/TIA%20PCB%20single%20/TIA%20screen.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, vu3wjm <vu3wjm@yahoo.com>
14824	2018-05-20 01:38:11	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VU3WJM/TIA PCB single /TIA fab single.zip Uploaded by : vu3wjm <vu3wjm@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VU3WJM/TIA%20PCB%20single%20/TIA%20fab%20single.zip To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, vu3wjm <vu3wjm@yahoo.com>
14825	2018-05-20 01:42:50	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /VU3WJM/TIA PCB dual/TIA fab dual.zip Uploaded by : vu3wjm <vu3wjm@yahoo.com> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/VU3WJM/TIA%20PCB%20dual/TIA%20fab%20dual.zip To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, vu3wjm <vu3wjm@yahoo.com>
14839	2018-05-22 14:56:51	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /K6JQ/dbm_test_1.asc Uploaded by : k6jq <k6jq@comcast.net> Description : LTspice source for DBM in Tayloe configuration You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/K6JQ/dbm_test_1.asc To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, k6jq <k6jq@comcast.net>
14913	2018-07-03 18:02:50	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /KI4IO/Lo-side LO - output of Hex Inverter.jpg Uploaded by : jwolczanski <jerrywolczanski@earthlink.net> Description : Photo showing square wave outputs from Hex Inverter using home-made oscilloscope probes courtesy of WA5BDU You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/KI4IO/Lo-side%20LO%20-%20output%20of%20Hex%20Inverter.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jwolczanski <jerrywolczanski@earthlink.net>
15255	2019-03-12 14:54:00	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /LM386 Bandpass Filter.jpg Uploaded by : ab7vf <ab7vf@yahoo.com> Description : audio band-pass filter for LM386 You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/LM386%20Bandpass%20Filter.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, ab7vf <ab7vf@yahoo.com>
15256	2019-03-12 14:55:34	ab7vf	Re: New file uploaded to emrfd
what a convoluted thing ...anyway band-pass filter for lm386 ...might be useful Jim
15309	2019-05-28 06:00:09	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /Atlas.jpg Uploaded by : neiperalta <norberto.modanesi@gmail.com> Description : Marker oscilator You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/Atlas.jpg To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, neiperalta <norberto.modanesi@gmail.com>
15341	2019-06-08 22:17:37	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N7GTB/motionalparams.ods Uploaded by : n7gtb <n7gtb@yahoo.com> Description : 10 Mhz HC-49 xtals from Mouser You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N7GTB/motionalparams.ods To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, n7gtb <n7gtb@yahoo.com>
15349	2019-06-11 06:34:54	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N8CAH/HyCAS/HyCAS Gain vs. AGC.pdf Uploaded by : jim_amos_n8cah <jimamos@sbcglobal.net> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N8CAH/HyCAS/HyCAS%20Gain%20vs.%20AGC.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jim_amos_n8cah <jimamos@sbcglobal.net>
15350	2019-06-11 06:35:12	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N8CAH/HyCAS/HyCAS Gain vs. AGC.xlsx Uploaded by : jim_amos_n8cah <jimamos@sbcglobal.net> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N8CAH/HyCAS/HyCAS%20Gain%20vs.%20AGC.xlsx To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jim_amos_n8cah <jimamos@sbcglobal.net>
15352	2019-06-11 07:25:31	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N8CAH/HyCAS/HyCAS Gain vs. AGC.pdf Uploaded by : jim_amos_n8cah <jimamos@sbcglobal.net> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N8CAH/HyCAS/HyCAS%20Gain%20vs.%20AGC.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jim_amos_n8cah <jimamos@sbcglobal.net>
15353	2019-06-11 07:25:36	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N8CAH/HyCAS/HyCAS Gain vs. AGC.xlsx Uploaded by : jim_amos_n8cah <jimamos@sbcglobal.net> Description : You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N8CAH/HyCAS/HyCAS%20Gain%20vs.%20AGC.xlsx To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jim_amos_n8cah <jimamos@sbcglobal.net>
15354	2019-06-11 07:29:53	emrfd@yahoogroups...	New file uploaded to emrfd
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the emrfd group. File : /N8CAH/9MHz_Crystals/9 MHz Crystal Parameters.xlsx Uploaded by : jim_amos_n8cah <jimamos@sbcglobal.net> Description : Spreadsheet to calculate 9MHz IQD crystal parameters You can access this file at the URL: https://groups.yahoo.com/neo/groups/emrfd/files/N8CAH/9MHz_Crystals/9%20MHz%20Crystal%20Parameters.xlsx To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, jim_amos_n8cah <jimamos@sbcglobal.net>
15359	2019-08-05 08:58:23	Rod	AppCad
Hi All, A wonderful old design tool is still available: AppCad You can download it here: http://www.hp.woodshot.com/ Regards, Rod