K3 utility and calibrate RF gain

Posted by Dave, G4AON on Aug 12, 2009; 10:19pm
URL: http://elecraft.85.s1.nabble.com/K3-utility-and-calibrate-RF-gain-tp3434334.html

I've just tried this with the new utility (and f/w 3.25). After running
the gain calibration and then calibrating SMTR OF and SMTR SC, the K3
S-meter did give remarkably accurate readings.
My K3 gives S9 = -73 dBm, S9+20 = -53 dBm, S9+40=-33 dBm and S9+60=-13
dBm. Equally it is giving 6 dB per S point below S9 down to S3 at -109
dBm. I only checked my K3 on 80m but it's darn good. Mine is calibrated
without the pre-amp in use and on CW.

It needs clarifying that the gain calibration does not in itself
calibrate the S-meter.

73 Dave, G4AON
K3/100 #80
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