[Elecraft] K2 AGC Problem

[JIMMY D HARRIS]

Sjoerd,

When measuring millivolts some voltmeters are not very accurate.  I've seen 
them err as much as 40-50 percent.  Compare two or three meters and see the 
results.  Also, some crystals don't put out a pure sine wave making RMS 
measurements less acccurate.  Look at it on an o'scope if one is available 
and calculate the RMS from the waveform on the screen.  When working with 
millivolts there are a lot of factors that can affect accuracy that are less 
of a problem when measuring higher voltages.

Just some observations.  Hope you get it working soon to your satisfaction.

Jim, AB0UK
K2/100  S/N 4787


>- Crystal filter output seems quite low, it reads 0,17 Vrms, instead of the
>given 0,35V .. tried this with different BFO settings, no significant
>difference. The input of the filter is about 2,15 Vrms with a jumper over
>the NB connector (5 dB more than normal)