[Elecraft] KPA500 Power In Digital Modes

[Jim Rogers]

Then you have a problem.  I regularly run my KPA500/KAT500 at full power 
on every band, including 10M and 6M in all modes, CW, SSB, RTTY, FSK441 
etc.  As for the KAT500 faulting, I always run the KAT500 in manual 
mode. It "knows" where to tune for my modes of operation and the 
frequencies I operate (like the CW DX windows, RTTY frequencies etc). If 
it doesn't then I hit the TUNE button.

73s Jim, W4ATK
On 11/11/2014 4:30 AM, Michael Eberle wrote:
> On 11/10/2014 5:56 PM, mcduffie at ag0n.net wrote:
>> On Mon, 10 Nov 2014 09:34:09 -0800, Jim Brown wrote:
>>
>>> During KPA500 beta, I was loaned one for a major RTTY contest weekend
>>> and told to run it "with all the lights lit." I did, and it worked 
>>> fine.
>>> In the 3-4 years I've owned one, I regularly run it at full power in
>>> digital modes on all bands, 160-6M. When it gets warm, the fan speeds
>>> up, but it continues to put out full power. This includes digital modes
>>> like FSK441 and JT65A on 6M, and lots of RTTY on the HF bands.
> I cannot get my KPA500 to run more than about 200W on 6M without 
> getting a PA DISS fault.  Temp is not even up to 60C yet.
> Between that and the KAT500 coming 'untuned' and faulting in the 
> middle of a QSO on 10M, I'm about ready to throw them both in the
> trash and go back to my tube amp.
>
> Mike
> KI0HA
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