[RFI] Frequency Shifting RFI

[Tom Thompson]

I figured it was switcher, but I have never seen one move in frequency 
so far so fast.  Anyway, when I get around to finding it, I'll  report back.

Tom   W0IVJ


On 8/26/2016 1:11 PM, David Robbins wrote:
> That is likely a harmonic of a switching supply that is relatively
> unregulated, as the line voltage changes the frequency of the switching
> changes.  I can't tell the frequency range you are monitoring, but in
> general switchers like that are probably around 50-100khz with harmonics way
> up the bands.  The lower in frequency you can find it the less it will shift
> and the narrower the noise will be.
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt at arrl.net
> web: http://wiki.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373
>
>
>
> -----Original Message-----
> From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of Tom Thompson
> Sent: Friday, August 26, 2016 18:27
> To: rfi at contesting.com
> Subject: [RFI] Frequency Shifting RFI
>
> Hi all,
>
> This one is going to be difficult to find with a conventional receiver.
> Guess I am going to have to activate my SDRPlay from the car.
>
> https://youtu.be/626BWEsZA9I
>
> Tom   W0IVJ
>
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>