[Elecraft] KPA-500 watt meter vs. Palstar

[k2zf50 at aol.com]

All connections are tight. I have substituted coax to address that concern. Its funny it happens only on 20 meters into a dummy load or antenna and tuner. 




-----Original Message-----
From: Mike Fatchett W0MU <w0mu at w0mu.com>
To: k2zf50 <k2zf50 at aol.com>; elecraft <elecraft at mailman.qth.net>
Sent: Sun, Sep 18, 2011 6:58 am
Subject: Re: [Elecraft] KPA-500 watt meter vs. Palstar


Sounds like RF.  Are all the pl259's and other cabling tight etc?

We were having some strange problems with our Fire radio at the station 
and somehow the connector on the back was nearly off.  Screwing it back 
on solved a bunch of strange oddities that were happening in the comm room.

On 9/18/2011 8:37 AM, k2zf50 at aol.com wrote:
> The high current warning on 20 meters happens with either a dummy load or my 
antenna's through an antenna tuner. It happens only on 20 meters and over 80 
watts. If I set the K3 for more than 80 watts the output of the K3 goes into 
oscillation evident on the K3 watt meter. Lower than 80 watts everything is OK. 
The TX gain calibration is good.
>
>
> Thanks,
>
> Jim  K2ZF
>
>
>
>
>
>
> -----Original Message-----
> From: Grant Youngman<nq5t at tx.rr.com>
> To: elecraft<elecraft at mailman.qth.net>
> Sent: Sun, Sep 18, 2011 6:20 am
> Subject: Re: [Elecraft] KPA-500 watt meter vs. Palstar
>
> If you've run the TX gain calibration, and that worked properly, it sounds 
more
> like you have an actual load problem.  Which would cause high current.
>
> Is the high current warning happening both with a known good 50 ohm load
> connected to the K3 and with the antenna?
>
> Sent from my iPhone
>
> On Sep 18, 2011, at 8:45 AM, k2zf50 at aol.com wrote:
>
>> Hi Ray,
>>
>>
>> Thanks or your response. I have found that on 20 meters my K3 displays a high
> current warning above 80 watts displayed on the K3. Other bands I can transmit
> at 100 watts and no high current warning. I believe that is because the watt
> meter I have been using is not accurate and the K3 may be putting out in 
excess
> at this power level displayed on the K3 meter and therefore the high current
> warning.
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-- 
J6/W0MU November 21 - December 1 2011 CQ WW DX CW