I have a new, loud noise on Top Band.
It is a buzz -- S9 on some of my Beverages -- and so far seems to be
here for an hour or two, starting around sundown. I'm not sure if it is
there around sunrise, and I haven't listened for it in daytime yet.
In AM mode the noise sounds like a steady buzz, and it cycles on/off at
a regular rate -- 55 seconds on, 55 seconds off. Or at least that was
the interval tonight when I thought to time it. On previous nights I
observed the noise started at a lower strength and gradually built up,
then dropped off sharply when it quit.
I was thinking perhaps a street light might be the source, but canvassed
the nearby area tonight and found none going on/off. There is a new
development next door but with only one model house and 3 street lights
so far, and none of those lights were going off. I did see one
low-voltage light flickering in a string of several along a neighbor's
driveway, but the flickering was steady -- the light never went out.
My mobile rig is "between cars" right now but when I get it installed
again I will try some further tracking.
But any ideas on a possible source would be appreciated. The regular
rate of on/off cycling has me puzzled -- nothing I've come across before.
73/Jon AA1K
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