If you can hear nothing at all on 40m but the other bands are OK the likely
problem is in the low pass filters on the K2 RF board. I surmise relay K2
which selects the 40m filter is not operating. Another possibility is K1 the
bandpass filter for 40m though I think that less likely.
U1, the IO co
Mark,
I am puzzled since you say it transmits on 40 meters, but does not
receive - and that it receives well on other bands.
There is precious little in the K2 that would create that situation.
What do you have set for 40 meters that is different from other bands?
Preamp on/off? Attenuator o
This evening I had a guest ham in the shack who was curious about my K2 and
asked if we could hook it up. So we did. I pointed out which 12v power
strip, power cord, and antenna to use. While I was getting the proper
computer interface cables hooded up, my guest connected the radio to the
power
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