[Elecraft] K3 power output on SSB

[Bruce McLaughlin]

Don:

For what it may be worth, I was in contact with Don, N4ZZ, the other day and
he was complaining about a momentary, periodic drop in power output from the
K-3 of approximately 50% while driving his amplifier.  He was using the
latest firmware version 3.79.  He had not had that problem before.  I had
downloaded version 3.79 but have held off installing it until we see whether
there is in fact a problem.  I am using version 3.77 and the output is quite
stable as it has been all along.  I think I should mention I have seen one
or two other references regarding similar problems from other posting as
well.  Although Don's problem is not exactly the same as Tom's it does
mention unstable power output on sideband.  Perhaps this warrants further
investigation.

Bruce-W8FU

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Tuesday, March 30, 2010 8:34 AM
To: Juha - oh6os
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 power output on SSB

Juha,

Tuning within any band will not reset the power output controls, however 
changing bands does reset it.

As Joe has mentioned, do the power calibration, it will help.  The power 
control mechanism does use the data obtained from the TX gain 
calibration, so yes they are related.

73,
Don W3FPR

Juha - oh6os wrote:
> Not so good behavior on the contest, where is alltime tuning.
>
> juha - oh6os
>
>   
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html