CIS 75 Bd PSEUDO#
The ACF of this FSK-system used by units of
the CIS military (possibly Russian Navy) does not
show any characteristic ACF. There
is however a way to identify this system by decoding the
raw bitsream with an analysis module like
the character analysis duplex incorporated in the Hoka
decoders using the following settings
(ITA-2/ 6-BIT / BIT INTERLEAVED). Among the encrypted
bitstream you will notice the revealing
string "VMGTCNREX", that is
probably being used for
synchronization purposes. Normally a shift
of 250 Hz is being used, however a shift of 500 Hz has
been noted as well on rare occasions.
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