[Elecraft] KPA1500 Remote Software Question

[Jim Brown]

Neighbor and serious contester K6XX was the engineer who put both of 
their amps into production. He borrowed my KPA1500 for a contest after 
he lost everything in a major wildfire. He told me my fans were super 
dirty with dust, because I was running them at far higher speed than 
necessary to keep the amp cooler than necessary.

Bob's advice was to use the Auto setting for the fans and let the 
protection logic take over. I've done that ever since (about 18 months) 
and while I've seen the temp get up to 90 C a few times, I've had no 
issues running heavy CW and RTTY contesting. Usually though, it rarely 
gets much above 75 C.

What I HAVE seen is that the amp runs hotter if the tuner isn't well 
matched, which emphasizes the importance of training for our antennas.

73, Jim K9YC

On 1/30/2022 1:29 PM, Ed G wrote:
> Folks,
>       Using the KPA1500 remote program. There is a slider control for the fan just below the temp bargraph.  I can manually adjust the slider to give me different fan speeds, so the control is communication with the KPA1500.
>       I seem to remember when I first installed the remote software that the slider position responded to the KPA1500’s automatic fan speed.  I could look at the position of the slider and know (while wearing headphones) what the fan speed was.  But that no longer seems to be working, and the blue slider remains at the far left position even when the amp fans are running.  So I’m not quite sure how this slider is supposed to work. If I set min fan speed in the KPA1500 menu to “1” the slider position will move to “1”  It just doesn’t move when the fan is set to “auto” and comes on by itself.
> --Ed, N3CW—
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