When I lived in a sub-division in the city 17 years ago, I had the very same
My problems stemmed from the neighbourhood's mercury vapour street lamps'
ballast going bad...you can tell which lamp is NFG simply by observing them:
the noisey ones always have the lamps cycling on & off, in an interlude of
several minutes' time.
Final confirmation is easy enough: just tune your car AM radio to a "dead"
spot on the band, then drive over & park beneath the culprit for a brief
interlude --- I guarantee that you WILL, indeed, hear its effects!
A phone call to the municipal public utilities office got results within a
matter of days.
HINT: when you call the works department, do NOT tell them that you're a Ham
plagued with noise! You'll end up on the proverbial back burner. Instead,
tell them that your XYL enjoys walking the dog around the block at sun set,
& she's afraid to venture forth into the neighbourhood now because of the
resultant darkness caused by the defective lamp.
It worked for me, every time...
~73!~ Eddy VE3CUI - VE3XZ
----- Original Message -----
From: "Barry N1EU" <email@example.com>
Sent: Saturday, October 13, 2007 7:21 AM
Subject: [RFI] RFI from street lights - finding source?
> For over a year, I've been plagued by cyclical noise bursts on 160/80M
> of about 30sec duration repeating every 2 minutes or so. Here are
> some examples (stereo recordings):
> http://n1eu.com/29Jan07a.wav - AM L channel, CW R channel
> http://n1eu.com/09Oct07a.wav - CW
> I've been pondering how to go about locating the source. Does it seem
> reasonable that the source is likely to be between a quarter and half
> mile distant? Does the noise correlate with the lamps visibly
> restarting/flickering? I was thinking of putting a telephone next to
> the rig's speaker and monitoring the audio with a cell phone while
> driving around and observing the street lights.
> Any comments/suggestions appreciated.
> Barry N1EU
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