George, Ask yourself what has changed between good operation and now. Have you re-arranged your shack? The K2 is sensitive to devices with transformers positioned within 2 feet of the left side panel - the transformer's magnetic field modulates the K2 VFO.
As a test, move your K2 away from everything else on the desk and run a test. If this proves to be your problem, you can install the optional mod kit, VCOSHLDKT. 73, Don W3FPR On 10/21/2012 10:48 PM, George Winship, NC5G wrote: > 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. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
