[Elecraft] KPA-500 watt meter vs. Palstar

[k2zf50 at aol.com]

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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