[BC] Power Line Noise (was: BPL)

[Rob Atkinson]

Around 2 years ago I looked into getting one of those ultrasonic detectors 
but they were real expensive--several thousand dollars as I recall.  Even 
the clear plastic dish was around 6 or 8 hundred bucks.   I've used an AM 
aviation receiver on around 110 to 120 mhz and a radio shack FM broadcast 
band yagi to DF the sources.  the only problem is that when I'm walking 
around with this stuff, especially after dark, wearing headphones and waving 
the yagi around the cops start looking at me more closely.   Fortunately I 
don't have to do this very often.

Rob Atkinson

From: "Tom Taggart" <tpt at eurekanet.com>
Reply-To: Broadcast Radio Mailing List <broadcast at radiolists.net>
To: Broadcast at radiolists.net
Subject: [BC] Power Line Noise (was: BPL)
Date: Mon, 23 May 2005 19:46:55 -0400

My friend and former business partner has been playing with a neat device  
made up of an ultrasonic mike & "downconverter" to locate noisy poles.   
He's works 6 sideband, mostly (call: KB8ZMJ) and of course the noise  drives 
him crazy. Allows him to narrow down most noise sources to the  particular 
pole which he can then report to the power company.

Local troubleshooter for the power company is very cooperative--when his  
supervisor allows him to be.  Device located a pole recently where two  
feeders crossed at right angles on the same pole.  There was an small arc  
that had been slowly burning away on the pole under the cross bars.  The  
pole was about ready to break in two.

--
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