Still having a distorted CW signal from my K2.
I installed the FWK2MCIO upgrade,hoping the problem would be solved.
The distorsion sounds like the russian woodpecker in the 80's
And is present on the begin of every character.
Turning the power pot has influence,"clicks" are loudest on low power, and
(almost)gone at maximum output
I also noticed a second carrier on low power, 1 KC apart from the CW carrier
When I increase power this carrier dissapears suddenly(not checked on 28 MHz)
I am using the K2 as IF for a 144 MHz DEM transverter.
VRFDET is a rectified RF output signal, appr.3V,taken from the output connector,and
connected to the RF connection (near the K2 VRFDET rectifier diode)
Power regulation works fine on a dummy load,but unpredictable when connected
to the driver amplifier(SWR is < 1.5 )
I checked also the 28 MHz IF signal , with transverter switched off, signal sounds
the same as on 144 MHz.
I changed the control board with PA2DW , no difference.
RF drive and bias voltage to the 10 Watt K2 amp is interrupted.
Something wrong in this setup or problem in K2 ???
Nanko PA0V
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