Usually electrical noise is very broad band in nature. I use the MFJ
unit to find the general direction, triangulate to an area, and then
using a 24" reflector type microphone, equipped with a high gain audio
amp and headphones, go "listening to poles". {Yea the neighbors think
I'm crazy,
If one is serious about finding noise, I've found this item to go a long
way in identifying down to the building or site from which it
originates. It takes a bit of practice and time to triangulate but does
work well. I'm sure there's other equipment and methods available as well.
A bit more: I watched this mystery QRM pretty closely for an hour Friday
evening as 20 meters closed for the day (by 6:30pm PST). The cadence of this
noise changed. It slowed. Then faded away with the band. I’m scratching my
brain to try think of a mechanical device that would create that kind
Yes, but David says, "only occurs on 20M", so this may not hear it at 135MHz?
Need portable like KX3 and small mag loop tuned to 20M.
On Saturday, January 23, 2016 2:14 PM, Bob McGraw K4TAX
wrote:
If one is serious about finding noise, I've found this item to go
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