[Spooks] ID on an X station

[Paul Beaumont]

Hello Dave
What you term 'Jet' may not be the same as that with the ENIGMA ID of XJT.

Issue 12 carried a short about XJT and what it is reliably identifieed as
being. [That piece is below]. You describe having heard comms on the same
freq. That too has occured before and is recounted in ENIGMA 2000
newsletter No8.
[The newsletters, Control Lists and other items can be downloaded from the
Number Monitors Group http://groups.yahoo.com/group/enigma2000]
If you subsequently discover that what you have termed 'jet' is actually
XJT, please let us know.
73
Paul


"JET (XJT)
This interesting fact was received from Leif via the spooks reflector: 'The
XJT file listed at "groups.yahoo.com/group/enigma2000"is in fact a STANAG
4285 PSK modem (2400Bd/8-PSK) used by
most NATO naval stations these days for ship to shore and shore to ship
broadcast tfc. Traffic is usually encrypted." Samples can be heard at the
following URL's
http://people.wiesbaden.netsurf.de/~signals/WAV/STANAG4285_BRASS.HTML
http://people.wiesbaden.netsurf.de/~signals/TABLES/PSK.HTML#STANAG%204285
For those without access they sound like 'Jet'.
A nice piece of work laying this 'oddity' to rest. Thanks Leif."


>there was what I have heard called the "jet", an RTTY- teletype sound, and
a dominant "glub, glub" sound. Of all these, the glub was >dominant. Once,
the transmission stopped for a minute and someone said "one charlie echo."
There was a similar reply from the receiving >location, but it was
faint.Can anybody identify the enigma? Was it XM or another enigma?