Re: K-3 goes into bypass on 6 meters

[MICHAEL SMITH]

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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[Bob McGraw - K4TAX]

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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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