[FedCom] Fasinator

[Dave Emery]

On Sun, May 19, 2002 at 02:35:30PM -0400, Hunter wrote:
> > They still use DVP? I was under the impresion that DVP was very obsolete.
> > '70's technology,
> > db
> 
> 
> There are a few types now, including DVP-XL and others.
> 
> Some of the newer Motorolla radion willl also accept the Facinator board
> which is a NSA approved class 1 protection system, much more secure than DVP
> and approved for all levels of classified information.
> 
> Believe it or not the feds can get it for $245.00 each.

	There are two modulations and secure speech technologies in wide
federal agency use - FSK at 12 kbs using CSVD voice encoding and APCO 25
(vocoded voice on filterd 4 level 9600 bps MFSK using IMBE and
relatively complex and elaborate forward error correction and packet
data frame structure).

	The first (the 12 kbs FSK) has its origin in the late 70s and
was developed by Motorola (AFAIK) as proprietary "Securenet" product for
the feds.   The second of course came out of Motorola Astro technology
by way of a standards body (APCO) and was developed in the late 80s to
mid 90s.

	They are quite different (a couple of generations apart), and
both have been equiped and used with a variety of actual crypto
algorithms ranging from relatively weak (original DVP), to very strong
(Facinator).

	I understand the feds are generally moving towards the APCO
25 CAI and slowly phasing out the old 12 kbs FSK stuff, but lots of
it remains in use (in fact the majority of secure comms still use it).
I also understand that quite a few radios designed to work in the modern
environment will do all three - nbfm ITC voice, 12 kbs CVSD FSK voice,
and APCO-25 IMBE vocoded voice.


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-- 
	Dave Emery N1PRE,  die@die.com  DIE Consulting, Weston, Mass. 
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