[RFI] "Marker RFI"

[Chuck Gooden]

When you find it let me know because I have something very similar.  I 
have S-7 across the 40 meters and below.  It is significantly reduced 
above ~8.5 Mhz

Have not had much luck finding it though.

Chuck K9LC

On 8/22/2020 3:21 PM, N4ZR wrote:
> Here's an odd one.  I seem to have a new emitter in the neighborhood.  
> It puts out a broad, T7, rough-but-steady tone just below 50 KHz 
> increments (7000, 7050, etc.) .  It is loudest on 40M - about S4 - but 
> audible from 80M up, and varies with which antenna I'm using. It peaks 
> due east on 20M on my tribander, and the difference between the 
> zero-beat frequency of the "carrier" and the 50-KHz intervals on my K3 
> diminishes with frequency, which suggests the possibility of harmonic 
> origin of some sort.  I can also see it very clearly on my Red Pitaya 
> 122-16 SDR spectrum display with the K3 off.
>
> Any idea what I should be looking for?
>