I also see things running back and forth across the panadapter, relatively
localized humps a few dB above background. I don't hear them when they
transit my operating freq. I typically operate in Panafall Mode and every
once in a while I see a horizontal trace as some source sweeps through in
Put the SignalLink away, you don't need it. All you need is software to
generate PSK31 (there are quite a lot available) and interface that to
PSDR via Virtual Audio Cable. You don't even need any physical wire,
it's all software.
73, RIch - W3ZJ
k1...@aol.com wrote:
I have a 3k and want to
Here is how I locate it. I have an AOR 8000 portable receiver. I dial in
the offending freq and go hunting around the house. I've located a noisy
transformer on the pole. Smack the pole with a baseball bat. The vibration
will usually vibrate the laminations and you will hear it!
Sniffing the
Perhaps the wiring of the radio picks up extraneous signals which are too
weak to retain amplitude when the dummy load is plugged in. The dummy I
assume is about 50 ohms. That would load weak sources pretty heavily and
drag them down into the noise or lower especially if they were of high
Smacking poles with a big hammer (with or without a transformer mounted on the
pole) will also help identify loose connections which may cause interference.
Even a portable AM broadcast band receiver can be used as the detector when
smacking poles. The power company may not be too anxious to
The 1/sec click is almost certainly an electric fence. I hear it on some
bands, and there are some hobby farms within 1/2 mile of here so electric
fence is likely. It is not a big nuisance, but is annoying.
The moving noise humps appear to come in several flavors. The fact that they
disappear
Smacking poles with a big hammer (with or without a transformer
mounted on the pole) will also help identify loose connections which
may cause interference.
It's also a good way to bring loose power line hardware down on your
head!
The power company does NOT recommend slugging their poles.
I know they don't recommend it, but I was out with a Power guy one day a
few years back.
The thing he asked me was if I had a sledge hammer as he didn't have his
truck with him. :) Even when I called in the pole, the dispatcher asked
me how I found it. I told him with my AM Yaesu radio at
Just wondering, since that option (as I learn more about it) sure sounds
like a handy feature for weak signal work on the low bands.
Mark Lunday, WD4ELG
Greensboro, NC FM06be
wd4...@arrl.net
http://wd4elg.blogspot.com
http://wd4elg.net
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