Hi all
Yesterday I discovered a problem with my K2/100 (Serial 0413). I am getting
around 90 watts out on 80 through 30m but the pwr drops down to 50w on 20m
and keeps dropping to about 34w on 10m.
I have a K2/100. It was originally a K2 when I bought it secondhand back in
2004. I upgraded it from ver A to B at that time. Last Christmas I updated
the radio adding the 60m/transverter kit K60VX to it and updated the
firmware where needed.
Over the summer I added the KPA100/KAT100 and the XV144 kits. At the time
everything worked and was with in spec when I set it up.
After discovering the problem yesterday I took the KPA100 out of circuit and
did some tests with the radio at low power. On the LF bands I get about 9
or 10 watts max but when I change to 20m the power drops to 5 watts and them
reduces as with the 100w pa in circuit. I put my scope on the input to the
K60XV from the band pass filters and then on the output from the K60XV and
the levels match what the watt meter is showing me.
The radio has the following modules fitted.
KSB2
K160RX
KNB2
KAF2
K60VX
I have taken the KPA100 out of circuit and am still seeing the issue with
the base radio so I cant see it being an issue with the KPA100. The base K2
used to produce 15 watts key down.
Not having done any faultfinding on the K2 before could someone guide me as
to the best place to start.
Regards
George GI4SJQ
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