KY-3 SECURE VOICE COMMUNICATIONS SYSTEM

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP72-00450R000100300003-6
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: November 11, 2016
• Document Release Date: August 27, 1998
• Sequence Number: 3
• Publication Date: September 11, 1967
• Content Type: MF

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pproved For Release -RDP72-0045 100300003-
MEMORANDUM FOR: Chief, Records Administration
SUBJECT KY-3 Secure Voice Communications System
REFERENCE : Memo frm Chief, RC, d.td. 26 July 1967
1. I have done a little research on the KY-3 Secure Voice Communications
System. A representative of the Office of Communications, Security Branch,
was the source of the following:
a. It behooves the prospective user to provide sufficient
justification for the installation of a KY-3 system;
b. Up to TOP SECRET and. S.I. material may be discussed, or
transmitted, over the system;
c. A fairly simple KY-3 system would. cost about $6600 - this
essentially covers the cost of the control box, known as the "grey
25X1A9a
25X1A6a
f. The Magnafox 840 Transceiver, which may be used. in conjunc-
cryptologic instrument";
d.. A terminal or extension to a pre-existing system may be
installed. for approximately $1700, i.e., an extension from Colonel
KY-3 to the
e. There may be as many as six extensions existing off of one
control box on any given floor;
tion with the KY-3 system, rents for
50. per month and. is a piece of
equipment patented. by the XEROX Company;
In addition to the cost of equipment and. the lines cited, above,
there exists an installation charge ranging from
on the complexity of the system;
1500 d.epend.ing
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h. Installation time for the KY-3 is approximately 90 days.
25X1A6a
2. There presently exists in the - Building four KY-3 Secure
Voice Communications Systems. It may be possible through the good. auspices
A9a
of Mr. OBGI Admin Officer, to inspect one of these systems in
operation.
3. The KY-3 syttzm between and. Headquarters
Building is circuited. through the White House. As a result there does exist
what the source describes as a "red. break-out". This simply means certain
personnel assigned. to the White House have access to cleared. traffic trans-
mitted. via our system. Since other high-level government officials use the
KY-3, presumably the "red. break-out" is a situation generally acceptable to
the users.
Approved For Release 1 vow ,I'D1! RDP72-00450R000100300003-6