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Author Topic: Dasher 5170 USB 03:27 UTC 26 April 2017  (Read 1326 times)

Offline RST111

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Dasher 5170 USB 03:27 UTC 26 April 2017
« on: April 26, 2017, 0330 UTC »
Strange, almost like a time signal.  19 dits then a dah.  Repeat.  Faster than 1/second though.

SINPO 25422 on my IC-R75

FWIW, Taiwan SSB meteorological broadcasting is theoretically scheduled now on this frequency.
QTH: 30mi East of Seattle

IC-R75, Afedri SDR, Airspy Discovery, Stridsberg HF Multicoupler, MFJ-1020C, Palomar CMNF-6, 40m dipole @ 100' AGL

Offline Dag

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Re: Dasher 5170 USB 03:27 UTC 26 April 2017
« Reply #1 on: April 30, 2017, 1228 UTC »
I think that signal is Link-11 at 1364 bits per second in Conventional Link Eleven Waveform (CLEW).

See http://www.sigidwiki.com/wiki/Link-11

Dag
Seminole county, Florida, USA, Earth, Solar System, Universe.
TS440s + attic dipole. Black coffee. Ketosis.

Offline RST111

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Re: Dasher 5170 USB 03:27 UTC 26 April 2017
« Reply #2 on: May 01, 2017, 0359 UTC »
Thanks!  Might have been; listening to the audio samples on the link I'm still not sure.

If I run into it again, I'll record it and post it to the ID board.
QTH: 30mi East of Seattle

IC-R75, Afedri SDR, Airspy Discovery, Stridsberg HF Multicoupler, MFJ-1020C, Palomar CMNF-6, 40m dipole @ 100' AGL

Offline Token

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Re: Dasher 5170 USB 03:27 UTC 26 April 2017
« Reply #3 on: May 25, 2017, 0138 UTC »
Yes, there is, and has been for a while, a Link 11 CLEW on 5171 kHz.  Sometimes USB, sometimes ISB or DSB.

T!
T!
Mojave Desert, California USA

Offline Josh

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Re: Dasher 5170 USB 03:27 UTC 26 April 2017
« Reply #4 on: May 25, 2017, 1554 UTC »
You know it's link11 when you hear "dink dink dink brrrrrrrrrrrrrrr dink dink dink".
Conveniently located near Vincennes Indiana.