Might run the K3 at 75 to 100 watts without the KPA500 and see if it shuts down.

Those temperature numbers, are they the K3 or the KPA500?    You might lift the top of the K3 and remove the KPA3 100 watt amp and observe both the male and female connectors.   Look for any signs of heating or discoloration.

73

Bob, K4TAX



On 7/25/2018 10:35 AM, MICHAEL SMITH wrote:
Thank you for the suggestions.
I am using an Astron linear power supply rated at 35 Amps.  I have had no 
issues with it since purchasing it for the K-3 application.


I have not checked the KPA-100 amp module to see if connections are tight.  I 
also have not checked the cooling fan on the K-3;  the PA Amp temp menu does 
not show overheating on the unit.  I am driving the KPA-500 with 20 watts or 
less input.  Even with the duty cycle, I don't see that causing any 
over-heating.


Baldeagle 535

Michael Smith
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