Long Story but will try to keep it to my point. I have triangulated my power line arc to a pole. Fairly typical 3 phase old residential but busy pole. Insulators, disconnects, lightning arresters, a
Ah, takes me back. A few years ago at my old semi-rural location I started having severe RFI. Turned out to be a lightning arrestor on a pole behind my garage. but here's the fun part - the noise s
Author: Leonard Halvorsen via RFI <rfi@contesting.com>
Date: Mon, 11 Jan 2021 14:51:28 -0500
An arc inside the transformer oil drum, perhaps. That might deaden it to the Ultrasonic Dish. Corroded connection on one end of a winding. An arc between turns. " " to the core or the inside of the d
Author: Leonard Halvorsen via RFI <rfi@contesting.com>
Date: Mon, 11 Jan 2021 14:55:08 -0500
Was that bolt/bracket pair GALVANIZED??? _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
Went to the grocery waiting on replies :-). The arc is pulsing up to about s5 tick tick tick sounds like a metronome. Put the radio on AM. Only heard the tick tick as I drove by the suspect pole. Fal
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Mon, 11 Jan 2021 20:16:07 +0000
Chuck, Besides the lightning arrestor which is an easy fix, other things that can be blocked on ultra-sonic dishes are the transformer itself with internal arcing; and also on top of the transformer
Thankfully my utility is very responsive to RFI complaints. Lightning arrestors have been the most frequent cause of RFI in my area. When my RFI investigator locates a faulty lightning arrester he di
I've tracked line noise to lightning arrestors, though sometimes I've been able to hear ultrasonic noise. However, as others have pointed out, any two poorly bonded pieces of metal near the lines can
Using both the MFJ offering for the purpose (VHF) and a 0.5-Meter shielded loop coupled to a small battery-operated radio tuned to the peak frequency of the emissioin, a faulty lightning arrestor was
Sent my util a request to replace the arresters. Will report in when I get more info. Thanks for all the replies! 73 Chuck AF4O _______________________________________________ RFI mailing list RFI@co
Chuck there is so many variables that in my opinion it would not be a good idea to request them to change out lightning arrestors. Lightning arrestors are almost never intermittent and either are tra
You're a lucky man Frank Happy 2021, Mike k3RFI RFI Services Get BlueMail for Android _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/m
Unfortunately, the Radar Engineers ultrasonic tracker is way out of the price range of most amateurs. While the MFJ one isn't as sensitive, it can be useful. I've often been able to hear the offendin
Chuck et al I am not an authority on RFI.not at all..however the once/second tick-tick-tick sounds a little bit like an electric fence. For about 3-4 yrs I had an active one almost underneath some of
From my experience, if it is an electric fence it will be on continuously, and the individual "ticks" will be very discrete. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http
For what it's worth . . . NK7Z posted a panadapter image of a defective lightning arrestor. It was 2000 feet from my antennas. I watched them go up and replace it. Here's the link: infrastructure <ht
Well it reared its ugly head just a bit ago. Below is an audio recording of this evening. https://app.box.com/s/d96erssv98sluoulinzfj68pa3r6h3j4 _______________________________________________ RFI ma
Well, definitely not an electric fence. Sounds like 120 Hz to me. 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net>. For spots, please use your fav
Hi Pete, Electric fence chargers can fail in continuous-on state. All of the signatures are the same as power line noise except the upper frequency range is much more limited, 73 Frank W3LPL -- Origi
Author: Leonard Halvorsen via RFI <rfi@contesting.com>
Date: Tue, 12 Jan 2021 10:21:42 -0500
Or maybe one of those buried dog-collar fences? lh wa2amw _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi