Re: f/w 2.73/1.98 power calibration
Posted by
Steve Ward on
Dec 21, 2008; 6:33am
URL: http://elecraft.85.s1.nabble.com/f-w-2-73-1-98-power-calibration-tp1651339p1684922.html
After reading about the TXG VCE parameter I reloaded MCU 2.73/DSP 1.98
and attempted to adjust the gain back to a reasonable level. By setting
TXG VCE to -3.0 dB I came close to my requested power output on the K3's
meter, when set to 40w I get between 4-5 bars on the graph. This is
with the 5th bar flickering slightly on the ALC meter.
At the same time I also tried the ADC REF calibration and came up with
4.967 v on my Fluke meter, so I set the K3 to 4.97.
It seems to me that having to set the TXG VCE to it's minimum setting
suggests something is still not quite right with the new firmware...
73,
Steve
K3/100 #1544
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