John
Your QRM looks exactly as the one I get when I use a "lower power
consumption" PHILIPS light.
There is some kind of chopper inside the socket radiating such wide band
noises.
Jean-Louis F6AGR
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of John RABSON
> Sent: Saturday, November 13, 2010 8:53 PM
> To: [email protected]
> Subject: LF: QRM analysis
>
> Please see attached screen print taken with Argo at 2010 Nov
> 13 1941z. The frequency marks across the top are relative to
> 136.0 kHz approx. The vertical bar is an artefact of the RX.
>
> The signal can occur at any time and drifts across the RX
> passband, with occasional jumps of a few hundred Hz.
>
> What software would people suggest for analysing it with a
> view to determing its cause and perhaps locating it?
>
> F5VLF
>
>
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