[Elecraft] K3 spurs

[Clay Autery]

I don't know where your antenna is located, how your feedline runs, or 
where your dummy load is located, but....

You have some kind of switch mode power supply or similar device that is 
coupling with your antenna and/or feedline.

That the signal dissipates some when on the dummy load is a clue to 
where the source might be...

I'd be almost positive it is external to the K3...

Are you powering the K3 with a SM power supply?


73,

Clay, KY5G


On 05/15/18 09:22, Roger D Johnson wrote:
> I was watching 6m yesterday and noticed several spurs. They were 
> spaced 39kHz
> apart. Amplitude dropped but didn't disappear when switched to dummy 
> load.
>
> I have the K3 with new synthesizer boards. Just wondering if anyone 
> else seeing
> something similar. IOW is it something in the K3 or external?
>
> 73, Roger
>
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