Sounds about right to me. It varies a lot with the band in use .. mine
runs hotter on higher frequency bands. I installed (reversible)
modifications in my KPA500 to improve cooling just to keep the fan noise
down.
Don K7FJ
On 6/23/2013 2:33 AM, Arie Kleingeld PA3A wrote:
Hello,
Just checking cooling performance my new KPA500.
Running 330W output in RTTY, 50% duty cycle.
SWR is OK: 1 : 1.1 or so.
Ambiant temp = 25C
Fan runs at speed 4, occasionally 5
PA TMP hovers between 65 and 70 C
Is this normal?
73
Arie PA3A
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