MONTHLY REPORT 1 April - 30 April 1959 SYSTEMS ENGINEERING BRANCH ENGINEERING STAFF

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A000500020031-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 5
• Document Creation Date: November 17, 2016
• Document Release Date: September 4, 1998
• Sequence Number: 31
• Publication Date: April 30, 1959
• Content Type: PERRPT

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MONTHLY REPORT
1 April - 30 April 1959
SYSTII S ENGINEERING BRANCH
ENGINEERING STAFF
1. Engineering activity was normal during this reporting period
with the exception of one "crash" requirement for rush procurement for
antennas which were required for Prniaftf , necessitating a trip
to for the
purpose of dis-
cus g e availability and price of rotatable beam antennas for the
international 6 - 7 me. broadcast band. Although the manufacturer
stated no previous orders had ever been filled, he foresaw no difficulty
in fulfilling the requirement. A trip report is attached.
2. Bids were received and a contract awarded to the
Company, low bidder, on specifications for trasmitters an an-enna
couplers for a packaged one KW broadcast station. The project involved
the design of a broadcast station, for the medium and high frequencies
complete with studio equipment and a quickly erected 100 foot base kn-
sulated vertical aluminum tower. The station will be housed in a
16 foot by 21 foot Butler Hut containing separate studio and transmitter
rooms. The prototype unit will be installed temporarily for Agency
inspection in the near Washington area when received.
3. The developmental program in conjunction with th10e
-2
logarithmically periodic (3 - 30 me.) antennas with the
Company is proceeding favorably and will probably be comp summer. Test data is available at this time to initiate the basic
design for four different types of AN-21 antennas which will vary in
radiation angle, beam width and be suitable for use on carious types of
circuits, which will vary in path length. A full scale array will be
erected this summer for a typical test path aDI subjected to operational
tests at that time.
4. The Selective uipment to be utilized with the SSB-l
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been undaranin g operational tests
during this period between Difficulties have
been experienced in obtaining the desired system reliability. Engineering/
operational testing will continue to determine methods of improving the
reliability.
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5. An inspection was made of several rhombic antenna-kits, set
aside in Allocation 22 for stockpile stations, which are stored at
and indicative of the condition of antenna equipment
stored in warehouse areas where they are exposed to the weather. Upon
examination, it was determined that some items would require replacement,
other items will require refurbishing and the antenna kits repackaged.
This action will be initiated in the immediate future to insure ship-
ment of C-1 antenna equipment in the event of activation or installation
of stockpile stations. More adequate storage measures will also be
provided.
6. A meeting was held, 16 April with representatives from OC-AD
and OC-T to discuss the preliminary requirements for the establishment
of an African DSCA Network. A general cost estimate will be established
based on a network of 5 active and 1. inactive stations. Definitive
requirements have hot been established or formal approval received for
the activity. A memorandum for file concerning the meeting is attached.
7. A modification has been developed which eliminates compromising
intelligence from the transients appearing on the parer line of the
Flexowriter. The modification does not eliminate the transients but
makes them of the same amplitude for all characters. In the same manner
the modification makes the electro-magnetic energy radiated into
space identicel in nature for all characters. A Flexawriter has been
modified in this way and no form of compromising intelligence could be
25X1 A5a 1 found, either on the power line or in the electroma etic radiation.
Necessary parts have been ordered from to make up
modification kits for 16 Flexowriters. The company representative
has estimated 10 day delivery on these parts, however, this seems
unrealistic since some of the components require special assembly at
the factory. When the parts are received they will be taken to a local
contractor for wiring and final assembly of the modification kits. The
completed kits should be ready for shipment to the field in July.
25X1A9a 8. traveled to Cedar Rapids, I he
erection of the 237A-1 Logarithmic Periodic antenna at
The experience will be utilized to provide su envision of e
installations of this antenna at A memorandum to
the file is attached.
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9. A meet was held with OL/RE&CD concerning coo~ted
relations when installations are associated with
facilities. OL maintains records of space allocations and it
was agreed that RE&CD will be provided with information concerning all
new and altered locations. Because of technical reasons Engineering may
continue direct association with Communications
Staff.
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10. The Drafting Unit prepared 222 drawings during the month.
Eighty of these were prepared for -
25X1 A9a 11. visited in connnection
with the development of the all mechanical o ape W one Tape Combiner/
Printer. A trip report is attached. Subsequent to this visit a memorandum
was forwarded to the Office of Logistics requesting that a contract be
established with for the production of a prototype
unit. Delivery is expec Fn approx tely nine months.
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12. NEW PROJECTS
E-5173 - Voice Carrier Telegraph System
E-5175 - Radio Station
13. REACTIVATED PROJECTS
25X1 A6b E-5078 - Revised_ Transmitter/Receiver Antenna Systems
E-5103 _Multiplex Systems for Base Stations to Sub-Base Stations
14. INACTIVE PROJECTS
E-5125 - Transmitter/Antenna Switching Systems
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E-5094 - RF Amplifiers (1000 Watt)
E-5115 - Standardization of VU Equipment
15. COMPLETED PROTECTS
E-5010 - Receiving Antenna Multicoupler
16. Number of Projects Reported on During this Month - 3 '
17. AII+IINISTRATIVE
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10 April 19
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19W %~
- Asebury Park, N. J. -
22 April 1959
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TDY (Continued)
PROCESSING
iami, Fla. -
29 April - 1 May 1959
edar Rapids, Iowa -
2 - 9 April 1959
Chicago, Ill. -
29 April 1959
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a 27 April 1959
1 May 1959
Basic Supervision No. 48
30 March - 10 April 1959
Basic Supervision
13 April - 8 May 1959
Basic Supervision
13 April - 8 May 1959
Chief, Systems Engineering Branch, OC-E
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ATTACHMENTS:
.(See Attached Sheet)
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ATTAG'HI ]TS:
25X1A5a1 1. Report of visit
2. Report of t Lactar 25X1A6b 3? Project aPids, Iowa
4. Report on TDY Trip to , Ma roneok, N.Y.
5. Proposed African ommun ca ons Activity
6. Projects and Aa Monthly Report
7. Trip Report to Asbury Park, N. J.
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