WIRE ENGINEERING SECTION

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-02820A001200030029-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 6
• Document Creation Date: December 12, 2016
• Document Release Date: August 13, 2002
• Sequence Number: 29
• Publication Date: June 30, 1966
• Content Type: PERRPT

Approved For Release 2002/08/26 : 8-02820AQ1200030029-4
A. WIRE ENGINEERING SECTION
1. Langley Signal Center 5/10 Year Planning - No change
in status.
2. CIFAX -
a. Delivery of the prototype Auto-Sync units and
traffic alarm units is expected during the next reporting
period.
b. Delivery and test installation of a new Xerox
alarm card for the LDX Data Converter is expected prior
to delivery of Auto-Sync units.
3.
KY- 3 -
a. KY-3 Call Director System
1. Training on the KY-3 Call Director System
was administered to and completed by the Langley
Technical Section.
2. Modifications on the present Call Director
System have been established to accommodate addi-
tional operational requirements.
25X1A5A1
3?
was low bidder
o
n the
a rication proposal for fifty Call Director
S
ystems. Funds for the contract are available and
t
he award will be made this fiscal year. The first
c
c
ompleted units will be available 120 days after the
ontract has been awarded.
4. ARLS - Initial design and installation data will be
due for review in August.
5. MAX-II - The final contract price for MAX-II is
$2,496,375 and includes additional programming and assembly
equipment.
6. COINS - Phase I activation is scheduled for mid
December utilizing 2400 BPS circuits interconnecting the
NPIC and OC-S computers with the DIA store and forward
data switch.
7. 360 Remotes - Office of Computer Services has
levied a requirement in OC to provide transmission facilities
between the IBM360 computers at Langley and eleven remote
devices. Two of these circuits will require KG-13 protection.
Meetings are being held with OC-S and =to develop engineering 25X1
and security standards for installations.
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8. Station Clock - Engineering aspects of a station
master clock are being investigated.
9. Data Systems
a. The Langley Signal Center Voice/Data Circuit
Patch Facility specifications have been reviewed by
interested offices in OC. There are minor changes
to be made before the.specs are sent to qualified
bidders.
b. Testing arrangements are being made to test
the feasibility of utilizing the KY-3 (758C) switch
in conjunction with the Rixon SEBIT 36 modem for data
transmission.
10. KY-3/NSA Gray Phone Interconnection - The feasibility
study of interconnecting the KY-3 758C switch with the NSA
gray phone switch continues. NSA will measure the cross-talk
in their gray phone switch during the next reporting period.
This information is required for technical planning purposes.
11. High Density R-100 Unit - (HD-Rl00) - The High
Density R-100 Unit tests have been completed by OC-SPS. Plans
are being formulated to procure and install the HD-Rl00 in the
Langley Signal Center replacing existing passive filters.
12. Revised CSR-5 Manual - The CSR-5 Manual has been
revised reflecting various changes which have been made to
improve reliability of the unit.
13. KW-7
a. KW-7 Systems Manuals TB-135 have been completed
and distributed.
b. Preliminary drawings for a class 5, KW-7 safe
have been completed.
14. TB-69 I- New Equipment - This bulletin
covers the Test Message Generator, DT-105A; the 24 circuit
switchboard, GB/TGC-24; the Universal Alarm Panel, AP-24A; and
a method for recording distortion on a telegraph signal line.
This bulletin has been distributed.
15. Universal Alarm Panel AP-24A - All 24 Units have been
placed in stock.
16. CSR-4 - The CSR-4 and CSR-5 are being scrutinized to
determine if additional fault correction may be required to
increase reliability.
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SECRET
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17. R-20 ( ) Keyer - A minor modification of the R-20 ( )
keyers provide for a much greater degree of reliability. Recent
reports indicate that when R-20 ( ) keyers are used with tape
relay equipment, it becomes necessary to clean the numbering
module stepping switch each day. Three modified units tested
on high volume circuits eliminated the need of any cleaning or
maintenance of the stepping switch for a period of two months.
Cursory RFI checks by WES indicate no change in the RFI
.NEW characteristics of the R-20 ( ) units. The units will be sent
to SP for final testing.
IMMI 18. Possible Flexowriter Replacement - Favorable comments
were received on the prototype model which has since been
25X1A5A1returned to or phase II (222) completion.
19. HW-28 - No change.
20. BCS Catalog (Teletype Equipment Catalog) -
a. This catalog has been forwarded to the field.
Further copies will be forwarded on request.
b. Additional information expanding the usage of
this catalog will be forthcoming in the near future.
21. M-28 Stunt Box - The alarm modification kit has
been tested and forwarded to the contact office for installation
as requested by OC-AD.
22. M-28 Numbering Module - The modified (gold plated)
numbering module for low level circuits is operating without
malfunction after extensive testing. A token amount of
required parts has been placed on order to perform this
modification.
23. Teletype Acoustic Material - A new material is being
evaluated for acoustically treating Teletype equipment.
24. Prewired Field Station Teletype Systems - Three
25X1A6A systems have been completed by T&I and are being shipped to
~25X1A6A 25. Signal Line Filter Box - An R.F. tight
signal line ril er box has been fabricated and will directly
replace the present filter box without modifications. The
filters wired into this box are of the light isolator type
(RlOl) versus the passive type filters used in the present
installation. Sufficient isolators for four send and four
receive circuits have been installed. Additional mounting
holes and terminal strips were included to double this capacity
if required. This unit will be given to OC-AD for installation
during the next reporting period. It is our intent that this
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,at RET
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 Approved ForQplease 2002 DP78-02820 ,01200030029-4
evaluations of the Collins 208U-3 (automatic) and Gates
HFL-3000 (manual) 3 KW Linear Amplifiers have been satis-
factory and these units are being considered for the
Standard Communications Equipment List.
and it was not possible to evaluate its manual vs. auto-
matic operational characteristics. The unit has been
returned to the manufacturer who is aware of the short-
comings and is undertaking the construction of a new
transmitter. R&D technical and operational 25X1A6B
b. Two Gates multi-mode transmitting exciters (Model
SG-75) will be available for R&D and operational evaluation
29 July and 15 August. These are being purchased at a cost
of $5,000 each (unit cost quoted for lots of 100). This
unit if acceptable, will provide in one unit performance
now required of an KFX FS keyer, PMO RF oscillator as
well as the exciter proper (SBE, GPE, SH-70 etc.). As
the SG-75 will probably not be available in quantity
before 1967, 41 Gates SG-70 exciters have been ordered to
meet current requirements.
c. Modifications to Kahn LSSB-63-1A exciter power
supplies (removing RF "spikes") have been incorporated by
the manufacturer. The carrier interfering "spikes" have
been eliminated, but proper exciter RF output levels have
not been provided. Other deficiencies in the product are
still evident and T&I is not able to accept the exciters.
It is planned to enlist recommendations of R&D to determine
what can be done to improve the mechanical and operational
shortcomings.
- 25X1A5A1 d. Performance of I "Mini-
Loop" (1 KW transmitting) and NA-7A, polarization diversity
receiving, antennas were observed. The PNA-7A antenna
performs well. Procurement action has been initiated to
obtain one PNA-6A to determine its use in improving traffic
reliability in connection with a proposed 5X1A5A1
system evaluation of our FSK/SSB-MUX circuitry. The PNA-7A
is a collapsible version of the.PNA-6A.
12. Modification Work Orders
a. MWO 102-2 was prepared for distribution. This is
an upgraded MWO which corrects several errors within the
context of the original, and describes the replacement of a
bleeder resistor (80 K ohms @ 50 watts) in the power supply
of the PAL-350 Linear Amplifier to prevent failures which
have become chronic.
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b. MWO 105-2 was also prepared which provides a
remedial method for overcoming low voltage diode
rectifier failures in the HFL-1000 Linear Amplifier
power supply. An additional MWO is being published to
explain need for 10,000 PIV diode replacements when
factory installed high voltage (2700 V) diodes (6000 PIV)
fail. All areas have been informed of these MWO's and
requested to advise the number of failures experienced
in this equipment.
13. All areas have been informed that 204C (5KW) Linear
Amplifiers have been received with mis-labeled connections,
which can lead to improper re-connections when a power supply
reactor is installed (the reactor is removed for shipment).
14. Tri Services Receiver - I is 25X1A5A1
designing a replacement for the 51S-1 receiver which will
feature digital tuning, but can be used to function in every
respect as a general purpose receiver. Additional sensitivity,
improved front-end intermodulation rejection, manually controlled
BFO, etc. will also be provided and is expected to be priced
competitively with presently available receivers.
1. TDY Report
2. Memo - Project Report of South Viet Nam
Secure Voice Study
Approved For Release 203
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MWKISOR