[Elecraft] RF feedback? only when using KXPA100

[David F. Reed]

Mike, it is clean on a dummy load; I guess I need to track down if I 
have lost my ground somewhere, or find the feedback path...

73 de Dave, W5SV


On 8/6/17 00:13, Mike Flowers wrote:
> Hi Dave,
>
> Have you tried this using a dummy load?  May be useful to eliminate RFI as a cause.
>
> -- Mike Flowers, K6MKF, NCDXC - "It's about DX!"
>
>> On Aug 5, 2017, at 9:26 PM, David F. Reed <w5sv.dave at gmail.com> wrote:
>>
>>
>> This did not used to happen; it is new to my set-up, nothing I am aware of has changed...
>>
>> When trying to operate JT65, if I set the power to 10 watts, everything is fine (KXPA100 is not active).
>> If I set to anything above 10 watts (yeah, like 11 watts or more), I get bad RF feedback (sounds like motor boating in monitor).
>> SWR via tune looks good, all cables have been taken out, checked and re-inserted.
>>
>> I am stumped and looking for hints as to what I ought to look at next, or re-check or try.
>>
>> Thanks & 73 de Dave, W5SV
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