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Author Topic: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013  (Read 1328 times)

Offline Kilokat7

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6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« on: August 19, 2013, 0236 UTC »
Did anyone else catch this on their overnight recordings on 6940 at 0200z?  Extremely strong here:

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Perseus SDR / Phased BOGs or Double Kaz
1980s pirate off-air archive

Offline ChrisSmolinski

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Re: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« Reply #1 on: August 19, 2013, 1400 UTC »
Yes, same exactly signal here. S9+20.
Chris Smolinski
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Offline BDM

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Re: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« Reply #2 on: August 20, 2013, 2256 UTC »
Saw this around 22:50 and still on.

Radios -- Perseus SDR // Icom IC-7410 // Tecsun PL-660 // Panasonic RF-5000A --Antennas-- Pixel Pro 1B loop - 82' fan-dipole at 40' - tuned MW/BCB 40" loop and 100' receive only dipole
-Brian--North of Detroit--MI-
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Offline jFarley

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Re: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« Reply #3 on: August 20, 2013, 2300 UTC »
Seeing that here also around S3 initially and strengthening.
Joe Farley, Near Chicago
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rdla4

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Re: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« Reply #4 on: August 20, 2013, 2328 UTC »
Here in GA as well....Running S4-S5 at 2328Z

Offline Token

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Re: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« Reply #5 on: August 21, 2013, 0022 UTC »
While I cannot be 100% sure of what it is without an audio or I/Q file (and the signal is not making it to the west coast) I am reasonably confident that this is Link 11 CLEW.

You can see enough detail in Kilokat7's image to see the 605 Hz Doppler tone, the 14 DQPSK data tones, and the 2915 Hz Sync.

The other image, showing 2 mirrored streams, looks like the signal is in DSB (or possibly ISB) on 6942 kHz.

T!
« Last Edit: August 21, 2013, 0116 UTC by Token »
T!
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Offline Kilokat7

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Re: 6935-6950 @ 0200z UNID - UTE or ? 8/19/2013
« Reply #6 on: August 21, 2013, 0042 UTC »
Thanks Token.  I suppose we can rule out Doctor Benway playing with digital modes again then, as I heard Undercover Radio on the same frequency and same signal strength about 15 minutes prior to this UTE burst captured in my screen shot above.  Hmmm...
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Location: Western Michigan
Perseus SDR / Phased BOGs or Double Kaz
1980s pirate off-air archive