EMRFD Message Archive 3916
Message Date From Subject 3916 2009-12-23 19:05:52 Phil Sittner Peaking Coils
Happy Holidays to all
regards,
Phil kd6rm
[Non-text portions of this message have been removed]3917 2009-12-23 19:14:33 Russell Shaw Re: Peaking Coils
> I have a question that may be of interest to others. Should a peaking coil be a high Q inductor or a lossy one? RF chokes are designed to provide a high impedance path to RF and are consequently lossy while tuned inductors and transformers are typically high Q (I hope I got that right) so exactly what goes on with a peaking coil?Makes little difference. Low Q is ok because the peaking effect is usually
needed to be very broad, so there is lots of resistive load across the coil.3918 2009-12-23 20:36:37 ajparent1 Re: Peaking Coils 3919 2009-12-23 21:45:24 Lou Burke Re: Peaking Coils
I think it depends on the application......the higher the Q the sharper the tuning and less bandwidth. In some applications you want a low Q tuning system.
Lou, W7JI
----- Original Message -----
From: Phil Sittner
To: emrfd
Sent: Wednesday, December 23, 2009 9:05 PM
Subject: [emrfd] Peaking Coils
I have a question that may be of interest to others. Should a peaking coil be a high Q inductor or a lossy one? RF chokes are designed to provide a high impedance path to RF and are consequently lossy while tuned inductors and transformers are typically high Q (I hope I got that right) so exactly what goes on with a peaking coil?
Happy Holidays to all
regards,
Phil kd6rm
[Non-text portions of this message have been removed]
[Non-text portions of this message have been removed]3920 2009-12-23 23:11:47 Russell Shaw Re: Peaking Coils
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