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Author Topic: 3575-3580 AM 0436-0456+ 11/22/15  (Read 1281 times)


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3575-3580 AM 0436-0456+ 11/22/15
« on: November 22, 2015, 0504 UTC »
First time hearing this so I'm not sure what category it goes under. I've been listening to a series of musical tones in AM mode which transmits for 20 seconds or so then goes off and comes back on. It appears on varying frequencies between 3575 and 3580
kHz. Very strange! Any ideas on what this is??

Offline refmo

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Re: 3575-3580 AM 0436-0456+ 11/22/15
« Reply #1 on: November 22, 2015, 0506 UTC »
It could be JT65A mode.  Runs for about 46 seconds each minute.  Sounds kinda like an icecream truck.
It is a very minimal data mode, but good for working long distance with low power.
Northeast Kentucky
Please eQSL to refmo[at]outlook[dot]com
Radios: Afedri AFE822x, Airspy HF+, RX-888, RSPdx, Tecsun PL880
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Re: 3575-3580 AM 0436-0456+ 11/22/15
« Reply #2 on: November 22, 2015, 0508 UTC »
It does sound like an ice cream truck refmo! Thanks for the info.