PROPOSED SCRAMBLING DEVICE FOR INTELLOFAX EQUIPMENT, JUSTIFICATION AND TENTATIVE SPECIFICATIONS CONCERNING

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03330A000800060033-7
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 23, 2016
• Document Release Date: April 23, 2014
• Sequence Number: 33
• Publication Date: December 8, 1951
• Content Type: MEMO

Declassified in Part- Sanitized Copy Approved forRelease2014/04/29 : CIA-RDP78-03330A000800060033-7
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Office Memorandum ? UNITED STATES GOVERNMENT
TO
FROM
I Chief, Engineering Division, OC
DATE: 8 December 1951
SUBJECT: Proposed Scrambling Device for Intellofax Facsimile Equipment,
Justification and Tentative Specifications Concerning:
1. In compliance with verbal instructions originating in OC,
a study has been made covering the immediate and future needs for
the subject device as applicable to facsimile equipment now in
operation in the Machine Division, OCD.
2. The Intellofax equipment, originally designed for remote
reproduction, is being used at present largely as local reproducing
equipment. IBM cards containing references, most of which are
classified, are fed into the transmitter and a 4" wide tape containing
a facsimile of the information is taken from the recorder. The tape
is then hand carried to the parties for whom it is intended. Since
the information handled is mostly classified, the absence of a suitable
security device prevents use of the equipment for remote reproduction.
A security device would allow expansion of the present facilities
directly to the various offices requesting Intellofax information,
resulting in more efficient, faster service for all concerned.
STAT
3. First, it is necessary to establish a basic speed of
transmission around which a security device should be designed. This
has been established as the speed of transmission of the existing
equipmentl, or, 27 sq/in/min arranged across a, 3" area on a 4" tape.
cThe increase in work load on the Intellofax system during the
past six months demanded action in one of two possible channels;
(1) ah increase in numbers of like equipment or, (2) an increase in the
speed of transmission of existing equipment. The latter is some
distance away, in so far as a recording medium is concerned. Electro-
lytical recording is limited, due to mechanical considerations. Several
photographic and neo-photographic methods of high speed recording are in
the developmental stage; however, to date, none have proven the sound,
practical answer to dry, high speed, immediately available recording.
With the intent of maintaining present proficiency, the AD/OCD has
decided to increase the numbers of like equipment as required. This,
of course, does not preclude the continual search for better methods of
high speed recording, since the Faxcard transmitter is much more versatile,
speedwise, than the Faxcard recorder.)
hi i
DOC 2./ REV DATE iiiNtO By
CMG COUP _13_ 4 (..1 TYPE CI.
CMG CLASS C PAGES 2-- _ REV CLASS
JUST .22_ UEXT REV ,2010 AM: HS 104
Declassified in Part - Sanitized Copy Approved for Release 2014/04/29: CIA-RDP78-03330A000800060033-7
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Declassified in Part- Sanitized Copy Approved forRelease2014/04/29 : CIA-RDP78-03330A000800060033-7
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SZCURITY INFORNTIOi
50X1
5. With regard to the future needs for the subject equipment
to cover higher recording speeds, no committment other than the
possibility of doubling the present speed can be made. Experimental
work continues toward increasing the recording speed from 900 RPM to
1800 RPM, however, mechanical considerations are beginning to cast a
a dubious glow over the practicability.
There are a number of other higher speed local and remote
reproducing equipments under consideration for specific purposes in OCD,
most of which are still in the developmental stage. These contain too
many variables in too many directions to allow a speed-wise opinion to
be ventured at this time.
6. The above has been coordinated with the AD/OCD. With your
approval, further endorsement is being requested .
iREUTIAL
uuii
INFOR;:iftleJtil
STAT
Declassified in Part - Sanitized Copy Approved for Release 2014/04/29: CIA-RDP78-03330A000800060033-7