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, mcduf...@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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