<s>
VINSON	B-General_Concept
is	O
a	O
family	O
of	O
voice	O
encryption	O
devices	O
used	O
by	O
U.S.	O
and	O
allied	O
military	O
and	O
law	O
enforcement	O
,	O
based	O
on	O
the	O
NSA	O
's	O
classified	O
Suite	O
A	O
SAVILLE	B-Algorithm
encryption	O
algorithm	O
and	O
16	O
kbit/s	O
CVSD	B-Algorithm
audio	O
compression	O
.	O
</s>
<s>
These	O
devices	O
provide	O
tactical	O
secure	O
voice	O
on	O
UHF	O
and	O
VHF	B-Algorithm
line	O
of	O
sight	O
(	O
LOS	O
)	O
,	O
UHF	O
SATCOM	O
communication	O
and	O
tactical	O
phone	O
systems	O
.	O
</s>
<s>
These	O
terminals	O
are	O
unclassified	O
Controlled	B-General_Concept
Cryptographic	I-General_Concept
Items	I-General_Concept
(	O
CCI	O
)	O
when	O
unkeyed	O
and	O
classified	O
to	O
the	O
keymat	O
of	O
the	O
key	O
when	O
going	O
secure	O
.	O
</s>
<s>
VINSON	B-General_Concept
devices	O
include	O
:	O
</s>
<s>
VINSON	B-General_Concept
is	O
embedded	O
into	O
many	O
modern	O
military	O
radios	O
,	O
such	O
as	O
SINCGARS	O
.	O
</s>
<s>
Many	O
multi-algorithm	O
COMSEC	O
modules	O
are	O
also	O
backwards-compatible	O
with	O
VINSON	B-General_Concept
.	O
</s>
