A few days ago I installed the new KSYN3A modules in my K3 along with
the KXV3B modules. I am running FW Rev 5.26. I was at 50.267 running
JT65 with no problems and the BW was at 2.8 KHz - the low cut at 0.1 and
the high at 2.9. When I adjusted the low end up to 0.3 a 'birdie' all
of a sudden appeared toward the low end of the audio pass band along
with a corresponding spike on the P3. As I adjust the low cut up, each
time the spike jumps further up the audio pass band. As I adjust the
cut above 0.8 the spike keeps moving up out of the audio pass band. I
can see it moving up the spectrum on the P3.
With the VFO at 50.276 and the low cut at 2 KHz the spike appears at
about 50.285 as measured on the P3.
Not sure if it has anything to do with the new synth modules or the
KXV3B. I turned the preamp off but it makes no difference except for
the background noise. I tried the same thing on 10 and 12 meters but it
does not happen on those bands.
Thanks,
Mike - KI0HA
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