Calibrating wattmeters and HF voltmeters. (Was KAT2 power calibration)

Posted by Ken Rice on Nov 07, 2006; 12:31pm
URL: http://elecraft.85.s1.nabble.com/Calibrating-wattmeters-and-HF-voltmeters-Was-KAT2-power-calibration-tp395160.html

Hi Don and everyone.

It does seem that calibrating a wattmeter is a hard thing to do if you don't
have an office at NIST! When I care about accuracy, I measure RF voltage
with the Elecraft DL1 and hope for the best.

Suppose you have a good DC standard, such as Don's or Joe Geller's designs.
Is there anyway to bootstrap accurate RF voltage measurements from accurate
DC measurements?

It's true that measuring power at +/- 20% is plenty good if what we care
about is signal strength on the other end of a QSO.  Still, it would be
useful and satisfying to be able to measure RF voltages more accurately when
doing experiments.

Thanks and 73,
Ken
K3VV
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