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Author Topic: utterly weird sounds on 10140 LSB 2251Z  (Read 1767 times)

Offline atrainradio

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utterly weird sounds on 10140 LSB 2251Z
« on: October 14, 2013, 2253 UTC »
I have absolutley no idea what it is! Its like random tones being played. Then it stops and now some data noises are coming in with the tones underneath. It might be a numbers station. Priyom.com has something about it Ithink. Help me out here this will bug me!
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Offline ChrisSmolinski

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Re: utterly weird sounds on 10140 LSB 2251Z
« Reply #1 on: October 14, 2013, 2313 UTC »
That's a ham band - it sounded like one of the zillion MFSK modes to me.
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Offline refmo

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Re: utterly weird sounds on 10140 LSB 2251Z
« Reply #2 on: October 14, 2013, 2314 UTC »
That is (at least the tones part) JT65A mode, a very minimal data exchange mode.
Actually would be best decoded on 10138USB.  Sounds kinda like an out of tune pipe organ.  Each transmission lasts 46 seconds if I remember correctly.
Google will give more info and free decoder software.
« Last Edit: October 14, 2013, 2317 UTC by refmo »
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Offline atrainradio

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Re: utterly weird sounds on 10140 LSB 2251Z
« Reply #3 on: October 14, 2013, 2320 UTC »
Thanks so much! That's what I was starting to think it was too. Its really hard to listen to its disturbing really.
QTH, New Jersey, America's landfill
Tecsun PL-990 W/ Extendable Whip Antenna