Re: [Elecraft] K3 signal at 28004

I too noticed this signal this past weekend while doing some S in the ARRL 10 meter contest. I have no other Elecraft accessories and have an upgraded K3 in the 6000 range serial numbers.My signal is audible from about 28.003.75 to 28.005.64 transitioning from low pitch to high withthe shift up

Re: [Elecraft] K3 signal at 28004

Hank - I had that same signal at 28.004 and it was caused by my KAT500, as I recall. Elecraft has a fix for that - simple mod to the KAT500, if I recall correctly. Do you have a KAT500 and have you possibly removed power from it? If so, that's probably where your signal has gone. Just a

Re: [Elecraft] K3 signal at 28004

Ok I give up - I always have a strong signal about 28004 on my K3 and it was there this morning just like always and most all day - now its GONE and the rx seems like its still working normally -107 dBm on the P3 for the 1 uv in . TX ok too. Just no 28004 ??? What is the magic ?? Hank K7HP