Since this occurs only in SSB, the problem is on your KSB2 board.
1st try receiving with the SSB filter set to something other than the
OP1 filter. If my current guess is correct, the KSB2 firmware is not
switching the filter properly - and if that guess is correct, it will
receive when the base K2 filter is selected in SSB mode.
If all that checks out, it does not fix it, but does indicate where to
look. Try reseating the firmware chip on the KSB2 board, and if that
does not help we can begin looking at various voltages on the KSB2. The
signals that switch the filter are RXS, TXS, TXC and RXC.
73,
Don W3FPR
N2TK wrote:
2) Does this behavior also occur in CW mode or just SSB?
(Just SSB. CW is fine. I don't need a mike to cause the problem. If I key it
while in the SSB mode it happens)
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