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Strange Sounds on 3480 KHz

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cmradio:
Hearing odd things on this frequency at night a couple of times per week.

AM mode with noises that I can only best describe as a chorus of coyotes yipping. Regular pattern, but being AM, don't think it's a digital transmission? ???

SSTV signal on AM?

I'll grab a recording net time I hear it.

Peace!

cpuerror:
Could it be a HAM using a very old transmitter in CW? Those are known to make chirping sounds with their analog oscillators and they drift quite a bit too, perhaps explaining why it is bordering on the ham band.

cmradio:
Hi,

Wasn't CW though, the AM carrier was steady as a rock other than the odd fadeout ???

Another way to describe the sound is if you have ever been into V/ULF listening, it sounds like the "dawn chorus". The signal persisted for as long as I was awake (I listen laying in bed most nights ;) ).

I thought of an outband HAM doing SSTV, but I've never heard such an emission on an AM carrier. I can pick it out on SSB OK though. There was the absense of the definate sync blips, but that could be due to the AM carrier noise making it.

Given some pirates have been experimenting with the low bands for the winter, I thought maybe someone here could lay claim.

Peace!

cmradio:
This has been on solid for the last few nights, but the signal levels won't allow a decent recording.

Last night however, it was replaced with packet transmissions, then back to the eerie sounding AM transmission.

Perhaps this is a MARS frequency? ???

Peace!

desmoface:
I just tried that freq, but I'm getting hammered by a weather station a few kc's up on usb...

Steve

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