[Elecraft] KAT2: Power Calibration Problem

[David Woolley (E.L)]

Don Wilhelm wrote:

> Also, be certain that your RF Probe is a type that provides RMS 
> readings.  Some (those with the diode connected in series with the meter 
> probe) will indicate peak voltage.  At 5 watts, 15.8 volts is the 

Surely any simple diode based design is peak reading, whether the diode 
is series or parallel.  To get true RMS, you either have to assume a 
sine wave, and use a voltage divider, or you need to integrate the 
square of the instantaneous voltage, by using thermal effects, using 
square law detectors, or by integrating digitally.


-- 
David Woolley
"The Elecraft list is a forum for the discussion of topics related to 
Elecraft products and more general topics related ham radio"
List Guidelines <http://www.elecraft.com/elecraft_list_guidelines.htm>