[Elecraft] Kx3, wsjtx, broadband noise

[Ken G Kopp]

A possibility is an ionospheric sounder ...

In the past there were many hundreds of 'em operated by "everyone".

Used to be plagued by one a few miles north of Denver.  Another was located
behind the NBS in Boulder.

Give Google a peek ....

73

K0PP

On Sun, Feb 2, 2020, 15:14 Tox <scott.small at gmail.com> wrote:

> Hoping someone has a suggestion for how I can work around some local QRM.
>
> I have a kx3 with filters installed
> I have wsjtx running.
> I've recently added a px3 to see if it would help provide insight.
>
> I find intermittent broadband noise that desenses my receiver on multiple
> bands. 1) It appears to either be On or Off, no visible fading.
> (Transitions are <<1 second). Sometimes a little flickering but usually
> extends for minutes to hours.
> 2) When on, signals in waterfall completely disappear or are reduced to
> just a couple nearby (loud) stations
> 3) when on, it wipes out at least one whole band (usually 20m, sometimes
> 40m as well).
> 4) when on, the full 200khz slice in px3 goes green snow
> 5) still happens if I throw breaker in my subpanel and am running off of
> batteries
> 6) with 30 min of fiddling, haven't been able to see it in a kiwisdr node
> less than a mile away
> 7) pskreporter still shows me to be getting out (to the extent I can)
>
> Broadband, no visible peaks, so not sure I could triangulate it by
> wardriving with a Kerberos.
>
> Any suggestions?
>
> Is there a way/practice to maybe leverage the filters to increase rejection
> of the interference?
>
> Thanks in advance,
> Scott
> AD6YT
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