David,
Loss of sidetone as well as 'strangness' in the filter width points to
the XFIL/TONE signal line which originates at pin 1 of Front Panel U2.
It provides sidetone during transmit and the voltage during receive
controls the width of the IF filter.
I don't know if it could be directly
David/AC4BN wrote:
>The symptoms are twofold: first, there is no sidetone when keyed, although
>I can see the bars on the LCD as the transmitter is keyed. I am using it
>with separate 20 and 40 dipoles dipoles and no antenna tuner (which worked
>nicely before this).
>
>Second, the incoming signal
My K1 (20m + 40m), built about five months ago, has been operating
perfectly... after some initial problems which were resolved. I’ve
recently taken it camping and a roadblock problem has now showed up (on two
earlier camping trips, it performed well).
The symptoms are twofold: first, there is n
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