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Author Topic: Numbers/Data (Cubans) 17.540 1/26/13 @ 2300Z  (Read 1731 times)

Offline desmoface

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Numbers/Data (Cubans) 17.540 1/26/13 @ 2300Z
« on: January 26, 2013, 2318 UTC »
Very loud, upwards of S-30 into NE Ohio.  Lots of data, and YL numbers.

Kenwood TS-870SAT
Full Wave 80 Meter Horizontal Loop ~ 260 Ft Long
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NE Ohio


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Re: Numbers/Data (Cubans) 17.540 1/26/13 @ 2300Z
« Reply #1 on: January 26, 2013, 2332 UTC »
Also heard this at 23:30z on 17.540. Sig was up to S9.

Offline Token

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Re: Numbers/Data (Cubans) 17.540 1/26/13 @ 2300Z
« Reply #2 on: January 27, 2013, 0005 UTC »
At 2300z (Jan 26, 2013) HM01 came up on 17540 kHz.  It typically stays up for about one hours, in this case it stopped audio at 2355 and the carrier dropped off air at 2359:38.  The previous hour (from 2200 to 2255) HM01 was up on the frequency 17480 kHz.  I believe, but have never confirmed, that the 2200 (17480 kHz) and 2300 (17540 kHz) messages are the same.  Keep in mind specific day and times are used, so there is not, for example, a transmission set like tonight every night, but there is one every Saturday night.

If you want to demod the data you can using DIGTRX, the format is RDFT.  Of course, the data will still be encrypted, but it is possible to see if they send the same data twice or during different time periods.

Mojave Desert, California USA


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