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Total 3 documents matching your query.

1. [RFI] Lightning Arresters (score: 1): Author: Jimk8mr--- via RFI <rfi@contesting.com>; Date: Sat, 23 May 2015 11:12:13 -0400; I've located a bad pole by RF DFing at 432 MHz. It has, however, no detectable noise using a W1TRC ultrasonic receiver. Is this a likely indication of a bad lightning arrester? 73 - Jim K8MR ________; /archives//html/RFI/2015-05/msg00030.html (6,453 bytes)
2. Re: [RFI] Lightning Arresters (score: 1): Author: Mike Martin <mike@rfiservices.com>; Date: Sat, 23 May 2015 18:49:33 -0400; Jim, Not exactly, that is more the indication that the U-S can't detect the source for anyone of many reasons. I'm not implying it can't be a LA. The sensitivity of that unit is a big factor and sinc; /archives//html/RFI/2015-05/msg00031.html (7,340 bytes)
3. Re: [RFI] Lightning Arresters (score: 1): Author: "Frank N. Haas KB4T" <utility.rfi.pro@gmail.com>; Date: Sun, 24 May 2015 01:55:58 -0400; Jim: An Ultrasonic detector/receiver/whatever is not always going to sound off even though the pole being scanned is definitely the source of the interference. As Mike pointed out, there are many rea; /archives//html/RFI/2015-05/msg00033.html (10,839 bytes)

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