EMRFD Message Archive 1668
Message Date From Subject 1668 2008-05-24 08:45:19 Alan Melia re Need a power standad I may not be totally correct here but it is my appreciation that you dont
calibrate against amplifiers....you calibrate against attenuators....or at
least that is the way I would do it. Thus if you have a 0dBm point from a
calibrated sig gen , attache any old amplifier via an attenuator with more
than 10dB in circuit, adjust the level to give 0dBm on the power meter and
the wind out 7dB, and voila +7dBm reference calibration. Passive devices
are much more reliable standards than active ones.
Every circuit designer/maker should at least have a good attenuator!!
Cheers de Alan G3NYK