[Elecraft] KPA500 Strange Behavior?

Jim Brown jim at audiosystemsgroup.com
Mon Mar 23 19:13:55 EDT 2026


Hi Tony,

Like all modern Elecraft products, there are menu settings for how the 
unit behaves. They're all detailed in the manual, which can be 
downloaded if we don't have the manual that came with the unit.

73, Jim K9YC

On 3/23/2026 3:46 PM, Tony via Elecraft wrote:
> All:
> 
> I've noticed that my KPA500 display changes from power output to temperature when I switch from operate to standby. I've always assumed that this was normal. However, I've noticed that whenever I short press the TEMP button to display PA temperature, the amp momentarily switches to a different band, which the auto-band switching corrects when transmitting.
> 
> The amp works normally as it always did, but I'm wondering if there's an issue with the microprocessor.
> 
> Anyone else seeing this behavior with their KPA500?


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