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1. [CQ-Contest] Ultrasonic detector (score: 1): Author: Steve London <n2ic@arrl.net>; Date: Thu, 30 Mar 2006 09:33:25 -0500; I'm sure every contester has been plagued by power line noise at one time or another (or all the time !). Using a combination of HF, VHF and UHF radios, I can usually isolate the noise to 2 or 3 pole; /archives//html/CQ-Contest/2006-03/msg00383.html (7,244 bytes)
2. Re: [CQ-Contest] Ultrasonic detector (score: 1): Author: Jim Idelson <k1ir@designet.com>; Date: Fri, 31 Mar 2006 15:51:02 -0500; The ultrasonic detectors used by my power company are made by UE Systems. They are not cheap. http://www.uesystems.com/ Jim Idelson K1IR email k1ir at designet.com web http://www.k1ir.com ___________; /archives//html/CQ-Contest/2006-03/msg00399.html (7,091 bytes)

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