[Elecraft] K3 Chirp on 6 Meters

[Peter Chamalian]

Interesting.  I have them noted and will report to Elecraft when I speak
with them.

Pete, W1RM


-----Original Message-----
From: Vic K2VCO [mailto:k2vco.vic at gmail.com] 
Sent: Sunday, August 12, 2012 12:33 PM
To: elecraft at mailman.qth.net; w1rm at arrl.net >> Peter Chamalian W1RM
Subject: Re: [Elecraft] K3 Chirp on 6 Meters

Pete,

The synthesizer issues were frequency-dependent. So if you were using
computer logging for the QSOs when you had the chirp reports, check back for
the precise frequency, and tell Elecraft.

On 8/12/2012 5:37 AM, Peter Chamalian wrote:
> 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

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/