[Spooks] Re: [UDXF] Cuban unid digital signal

[Hugh Stegman]

Tom Sevart wrote:

Now apparently testing different levels of an unknown 8-tone mode, 
possibly Wyman RDFT.  One pilot tone in the right place.  No decode at 1748.

This follows the transmission of a text file in Ham-DRM.  Received and 
stored a few packets, haven't looked at them yet.

Freq is 17436 USB and down for tuning, source is Cuban numbers.

-hugh

> On 17478 at 1600Z and 17436 at 1700Z the Cubans again today used some 
> strange digital signal in place of the V2a voice.  I first noticed this 
> on 7 Sept and now again today.  The signal is some sort of 8 channel 
> signal, has starting & stopping tones & appears to be fairly high-speed. 
>    The signal repeated after several minutes of dead air, and after 
> about two repeats the carrier went off.
> 
> Sound file available upon request.
>