[VHFcontesting] Re: [Yaesu] Re: RFI/Power line noise problem

[pegasus at mho.net]

> John...one of the best ways to 'track' these noise sources is with an
> ordinary AM transistor portable, with a built-in ferrite bar antenna. 

  By far, the best way to localize a source such as this is with a VHF receiver listening
in AM mode.  These signals will propagate a long distance, sometimes measured in miles, on
HF and the broadcast band and will often give false DF readings since they're re-radiating
from other conductors.  I've found several offending doorbell transformers in my
neighborhood this way.  I would drive around listening on 20 or 40 meters until I
identified an area (roughly within one square block) where it was averaging louder than
the rest of the area.  Then with my FT-817 tuned to the aviation band or two meters (AM
mode) the receiver was quiet until I got within a hundred feet or so of the offending
house.  I pin-pointed it every time this way.
Dennis
NØSP

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