Hello Group:
Recently while investigating a noise source on 15 meters I had my
spectrum analyzer hooked up to the antenna and noticed a few very strong
carriers up around 50 MHz. I'm not active on Six Meters so wasn't too
concerned about them, but my curiousity got the best of me and I took
out the VX-5r and tuned to one of them at 50.650 MHz. To my surprise I
was hearing television audio and distinctly noticed an NTSC video
carrier 4.5 MHz lower in frequency. Now this is not normal. I went for
a brief walk to see if the signal either increased or decreased in
amplitude. I couldn't see a major change in signal strength by walking
only a few houses away (about 300 feet). I did turn off the main power
to my house, so it isn't coming from some unknown device in my house,
like a cable set top box gone rogue.
My question to the group is, has anyone come across a new breed of
television extension device like some that Radio Shack sell for remoting
a video/audio feed via 2.4 GHz link. Only this one functions on or
near the six meter band? Just a curious question at this point. As I
mentioned before I don't operate on six meters so is really no concern
to me.
Karin Anne Johnson P.E. K3UU
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