Have had similar problems. Putting split ferrite cores on power supply, computer, key, cables solved the problem. Try lowering your power out to a couple of watts. If the problem goes away, you have RF getting in somewhere.
Sent from my iPad
> On Mar 24, 2016, at 5:11 PM, "
[hidden email]" <
[hidden email]> wrote:
>
> I recently got a KX3 and KXPA100. I have a Cobra UltraLite Kid up in my loft with a 4:1 balun and coax down into the floor below. I can tune most bands fine (I don’t do 80/160 due to plasma TV noise next door). However, when I try to tune the KXPA100 at 6m it often hangs in transmit. Or it stops with two dashes displayed. If I check the antenna with my RigExpert AA-600, the low end of the band is between 3:1 and 4:1, whereas the upper part goes as low as 1.08 around 53 MHz. I just went to 50.100MHz and pressed tune the display on the KX3 shows 3.1 and is stuck with the xmit light on until I press tune again.
>
> Has anyone seen this?
>
> Thanks and 73,
> Erik Tkal - W1QED
>
>
>
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