[Elecraft] KPA500 on RTTY

[Jim Brown]

Good advice.  I run my KPA500 with all the lights lit in all modes, 
including very aggressive RTTY contesting  As noted, the fan speeds up 
with constant CQing, but never approaches maximum speed.  I also run it 
this way for various WSJT modes, with the same performance. The 
wattmeter, which I have not calibrated on the HF bands, says I'm getting 
650-700 watts. The amp is quite well protected.

73, Jim K9YC

On 9/11/2011 8:38 AM, Richard Squire - HB9ANM wrote:
> Yes, Bob, the fan will accelerate during an RTTY contest (or during long
> transmissions in CW/SSB for that matter...) - this is normal.
> If you set fan speed to 1 or 2 to start with (instead of NOR), you will
> notice temperature rise will be substantially reduced - and much slower.