Phil, W0XI, has put a kit ultrasonic detector on the market. Well worth looking into.
http://www.midnightscience.com/ultrasonics.htm 73, Lee, K0LW -----Original Message----- From: topband-boun...@contesting.com [mailto:topband-boun...@contesting.com] On Behalf Of W2PM Sent: Wednesday, December 21, 2011 4:04 PM To: John G3PQA Cc: David Raymond; topband@contesting.com; Jon Zaimes AA1K; W5UN Subject: Re: Topband: Noise problem question I have used one which the ARRL RF lab brought down here to address a very serious problem. We were able to identify the BOLT on the insulators where arcing was coming from, photograph it, attach both the audio file and the spectral display unique to each offender and the power company still reneged. Until FCC saw this and that was the end of the power company resistance. Problem fixed. Those devices are not easy to aim however. You need a steady hand and lots of patience. Sent from my iPhone _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK