[Elecraft] K3 Chirp on 6 Meters

[Peter Chamalian]

If you have operated 6 meter CW and had a report of a chirp, I'd appreciate
hearing about it.  

 

I had several of them and my K3 is back at Elecraft right now for service,
but they are not able to reproduce the problem.  I know there is a mod for
the synthesizer board and that was made without solving the problem.  No,
it's not my power supply either - a big 50 amp Astron provides 13.77 volts
key up and 13.74 volts key down.  It's not RF because when I got the report
I reduced power (external amp off) down to the point where the station could
not copy me and the chirp was still there.

 

The strange thing is I had a local listen to my signal and it was clean.  At
a later time, two reports (one from eastern MA the other from SC and I'm in
central CT) said I had a chirp.  In both cases I had been on 6 for a while.

 

Is it frequency dependent?  Is it heat dependent?

 

Again, I would appreciate hearing from you if you have had reports of a
chirp on 6 meters - what frequency were you on at the time?  How long had
you been operating (was the rig getting warm?) or any other observation that
might help to pinpoint a way of duplicating the problem.

 

Thanks!

 

Pete, W1RM