HFU HF Underground
Loggings => HF Beacons => Topic started by: jFarley on March 22, 2013, 1601 UTC
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Noting beacon on 6920, about 20/minute, about 62mSec long, S5 signal. Off around 1642z.
I also noted this on 20Mar13 at 2351z (also on 6920) but had to run out the door and forgot to post it.
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This seems to be the return of our mysterious ditter network. I had it on over about two dozen frequencies today until it went QRT at 1724z.
I logged it here: http://www.hfunderground.com/board/index.php/topic,10533.0.html
Although perhaps the HF beacon forum is more appropriate?
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This seems to be the return of our mysterious ditter network. I had it on over about two dozen frequencies today until it went QRT at 1724z.
I logged it here: http://www.hfunderground.com/board/index.php/topic,10533.0.html
Although perhaps the HF beacon forum is more appropriate?
Dunno. I was thinking about moving it over to "Other". Tried your freq list but none of those heard here.
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They seem to be gone now. I suspect the DoD contractors went home for the weekend :-)
The fact that the 4 and 5 MHz frequencies were S9 here makes me think that the location is within a few hundred miles of my QTH.
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I didn't realize that the single freq I heard was part of a bigger operation. I know now to do a further search above and below next time. Thanks!
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When searching for them, I use an SDR, often in 500 kHz wide mode, to make it easy to step through HF. I'll sometimes also use a desktop radio in parallel, tuned to one of the nearby active ditter frequencies, so I can hear that transmission as well, and know about when a dit should appear on the waterfall, if there are other frequencies in use.