In theory, there should not be any hidden junction boxes behind drywall, but as
I have seen on Holmes on Homes, that's not always the case. :-)
I think I'd be inclinded to use the noise itself as my cable tracer. I'd use a
VFH AM receiver with some sort of S meter and a very small loop probe at the
end of a piece of coax. Many HTs receive AM in the aeronautical bands. You may
also need an attenuator to reduce the noise to a level that just moves the S
meter. You can then trace the wiring behind the walls because the noise would
be stronger near the wiring.
The S meter may also tell you the location of the noise source. Although it
would be noisy along the entire wire, it would generally be an S unit or two
higher near the source.
Ed
-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Danny Richardson
Sent: Monday, January 18, 2016 5:44 PM
To: rfi@contesting.com
Subject: Re: [RFI] Finding house noise sources
Gary,
I suggest you investigate a tone generator & cable tracer kit. I got several
hits list them with a web search.
73,
Danny, K6MHE
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