[Elecraft] K3 Erratic output power

Wes Stewart n7ws at yahoo.com
Tue Mar 5 07:43:48 EST 2013


Thanks for this.  I installed a couple of solder lugs (tags), bent them until they touched and soldered them together. I did this in situ on the operating bench.  Probably could have done a better job in the workshop but DX was calling.

--- On Mon, 3/4/13, Ian White <gm3sek at ifwtech.co.uk> wrote:

From: Ian White <gm3sek at ifwtech.co.uk>
Subject: Re: [Elecraft] K3 Erratic output power
To: "'Wes Stewart'" <n7ws at yahoo.com>, "'Elecraft Reflector'" <elecraft at mailman.qth.net>
Date: Monday, March 4, 2013, 12:06 AM

When first assembling the RF output connector and the KANT3/KAT3 board,
I didn't like the idea of using the long standoff pillar as a "ground"
return for large RF currents. The end of the pillar is actually quite
close to one of the mounting holes of the SO239, so a much shorter
return path can be made by using two solder tags, bent carefully so that
they overlap and then soldered together.

If Elecraft could supply a suitably drilled and twisted bit of metal,
problems in that upper rear right corner of the K3 might disappear.
 

73 from Ian GM3SEK


>-----Original Message-----
>From: elecraft-bounces at mailman.qth.net [mailto:elecraft-
>bounces at mailman.qth.net] On Behalf Of Wes Stewart
>Sent: 04 March 2013 01:45
>To: Elecraft Reflector
>Subject: [Elecraft] K3 Erratic output power
>
>Has anyone come up with a permanent fix for the erratic output power
>problem?  I'm not talking about the 100W PA issue, but the issue
"solved"
>(temporarily) by loosening and re-tightening the screws in the metal
standoff
>on the output board near the coax connector.
>
>According to Murphy's Law, mine failed during the DX contest and the
chase
>for TX5K QSOs.  The screw technique worked for awhile but then I had to
>resort to tapping on the top of the case near the connector.

______________________________________________________________
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


More information about the Elecraft mailing list