HFU HF Underground
Loggings => Spy Numbers => Topic started by: Eric Bazar on October 12, 2011, 1648 UTC
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Does anyone know what, or who is playing the series of tones on 7077 kHz? I started hearing it around 0230 on 12th, listened to it for about 3 hours, and was still going around 1500. Tuned in this morning at 1100, and it is gone.
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The same poly tone on right now.......7077 kHz 0039
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This is the ham 40 meter band, and specificaly the section used by digital modes, right now I am watching 10+ signals in that range (7077 +/- 3 kHz), I see Olivia, WSPR, and JST65, any one of those might be what you are describing, without more data or a recording that is as good an ID as it is going to get.
T!
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Cool, & thanks. My better half was listening to it, she said she recognized the tune as an 80s pop song, but can't remember the name, still hearing it off and on now, 11:37 utc, still with no ID.
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The ID is in the digital stream, they are indeed IDing but you will not hear and identify the ID by ear. And those modes and frequencies are in use by hams someplace in the World around the clock, so signals are pretty much always there, even if you are not receiving any at your specific location.
You might try MultiPSK or FLDGI, both of those pieces of software can be used with your sound card to decode digital information, depending on the mode. There are literally thousands of possible digital modes, hundreds that are common, and no one software will decode them all but between those two softwares you can cover most of the more common modes.
By the way, the digital signal sounding like any specific song is accidental, it is just a data stream.
You might check into the #wunclub IRC chat for real time help identifying signals (the link to the Java access can be found at the bottom of the front page of this site, http://www.hfunderground.com/wiki/Main_Page but if you have an IRC client it is a bit better). Quite often there will be people in there who can give you some direction on what a signal might be, and it being a real time chat they can tune to the signal to make sure. But, if you do go there, be aware that just because you see names of people in there it does not mean anyone is actually at the monitor. Many people leave that window open 24 hours a day to log other peoples reports, but might only be present a few hours a day at most. And the activity tends to swell and ebb as different people get off work or go to work.
T!