[Elecraft] K2 SSB audio problem

[George Winship, NC5G]

After 11 years of operating and many unsolicited reports of great audio, I am
suddenly getting not so good reports from my K2/100. Present setup is
K2/100, KAT100, KPA500, and resonant antennas on 75 and 40 meters. Very
rarely do SSB on any other bands. Stations seem to have trouble describing
the problem. Reports vary from fuzziness, distortion, to clipping. I
bypassed the tuner and amp, hooking feed line directly to K2/100 and also
turned the power down to ten watts to shut off the KPA100 and problem
persists. No difference between MH2 and CM500 mics. These test were done
with stations who know my rig and my voice. This is an early K2/100. All
mods were done years ago to K2, SSB, and KPA100. Receive audio is unchanged.
Visual inspection of boards look OK.

As a further check, I connected my KX3 to amp and antennas with great
results. 

Any suggestions?

Thanks es 73, 

George, NC5G 





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