... ... 24 

USCIB: 8.1/4 

23 November 1954 

MEMORANDUM FOR THE MEMBERS OF USCIB: 

Subject: Relocation of D Station (USM-60) from U.S. Sector of 

Berlin. EO 3 . 3 ( h) ( 2 ) 

Ref'erence: USCIB 8.1/3 of 16 July 1954. PL 86-36/50 USC 3605 

The enclosure herewith is circulated for information and file in 

co~.nection with the reference and completes action thereon. 

Enclosure 

A. C. of S., G-2, Memo 

16 Nov 1954. 

USCI~: 8.1/4 

Declassified and approved for release by NSA on 03-14-2014 pursuant to E. 0. 1352B 

TO:P SECRET 
16 NOV 1954 

G2-ASA 

SUBJEC~: Relocation of DF Station USM-6C) from U.S. Sector of Berl" 

THRU: 

TO: 

1. 

Director 

National Security Agency 

Washington 25, D. C. 

Reference is made to: 

;fEo 3 . 3 ( h) ( 2 ) 

PL 86-36/50 USC 3605 

a. !letter, 2 Jul 54, Serial 000813, su'\::>ject as above. 

b. CIB No. 000169, 1 Jun 54,/ same subject. 

2. As a matter of primary interest, the request to affect local agreement between the u. s. I I commanders in .Berlin and supply the information on the t e of e ui ent .which will be used USM-6C 

as referred to the Amty member o S for action • .....__~ 

,3. Information has n~ received from. Headquarters, ASAE that the 

local agreement desired byL__Jhas been reached and that the details of 

implementation were worked out with/Lt Col Maness, Intelligence Officer, 

U.S. Commander Berlin, and appropriate I I Sta!f members in Berlin. 

4. With respect to the information desired by c=J on the type of 

equipment used by USM-6C atj L there follows a list of this equipment, 

together with a description of each item: 

a. Teletypewriter, TT-7/FG: This equipment is intended for use 

where large amounts of traffic are anticipated. They include a Teletype 

model 15 teletypewriter, a model 15 perforator transmitter, a model 14 

tra.nsmitt.er distributor, a REC-30 rectifier, and a model 19 table. They 

are known commonly as model 19 sets. They exchange typewritten page messages between two or more points. One set of either type completely equips 

a station for sending to and receiving from one or more stations connected 

Enclosure with USCIB 8.1/4 dtd 23 Nov 1954. 

Tt>.P SRCR-EP 
EO 3.3(h) (2) 

TOP TM=n1P.rA581~3 PL 86-36/50 USC 3605 ..,.-.......... -- -

'fOP ffi!iemJf 16 NOV 19 54 

G2-ASA 

SUBJECT: Relocation of DF Station USM-6C from U.S. Sector of Berlin. 

by a telegraph channel. These sets are arranged for direct transmission by 

the perforator transmitter keyboard or transmission from tape by the transmitter distributor. Both methods may be used together if simultaneous 

transmission over two separate loops is desired. Either the perforator 

transmitter or the transmitter distributor may be connected in series with 

the local teletypewriter relay and the line in order to actuate the local 

and the distant receiving components, thereby furnishing a home copy of both 

transmitted and received messages at each station. In addition to typin.g 

page copy, these teletypewriter sets can produce perforated tape by means 

of the perforator transmitter for use in the transmitter distributor. If 

required as auxiliary equipment, a typing or nontyping reperforator can be 

connected to these teletypewriter sets to produce perforated tape and record 

the messages carried by a signal line. The perforator transmitter inserted 

in the base of the printer is a combination keyboard transmitter and tape 

perforator with an electrically operated character counter and end-of-line 

waming lamp. A manually operated three-position operating lever is mounted 

at the right end of the perforator transmitter unit. 

b. Radio Set AN/GRD-2: This equipment is an air-transportable, 

ground station radio direction finder which consists of a fixed oriented 

antenna array, an electronic goniometer, a highly sensitive radio receiver, 

a visua1 bearing indicator, an aural-null indicator, a moduJ.ating voltage 

generator, a power distribution unit, and other associated equipment. 

Through the use of this equipment, the azimuth angle of arrival of a radio 

wave at the antenna system, with respect to magnetic north or some other 

reference direction, can be determined. Thus, bearing information is obtained on practically any radio transmitter from which signals can be received. During actual operation, instantaneous visual bearing indications 

in the form of a propeller-shaped pattern on the screen of a cathode-ray 

tube are displayed as fast as the receiver can be tuned to various signals. 

Thus, bearings may be taken on practically all kinds of signals, even those 

of ext:remely short time duration. The frequency range of the equipment is 

from O. 54 to 30 me (megacycles). 

c. One Power Unit - PE-95: This equipment is a complete, selfcontained, a-c generating unit. The unit consists of an a-c generator with 

built-in d-c exciter. It is driven by a four-cylinder, liquid-cooled, gasoline engine which is directly connected to the generator. A control panel 

is mounted at one end of the unit on which all necessary meters, terminals, 

and controls are mounted. The complete assembly is mounted on a welded.-

steel skid base and inclosed within a sheet metal housing. The housing is 

provided with doors and removable panels enabling the operator to reach any 

part of the equipment. 

- 2 -

TOP SECRET 
TOP U,~,}j,Q,: A5818 3 IJ6.J'-' .... -.& e 

~OP SBef!ET 16 NOV 1954 

G2-ASA 

SUBJECT: Relocation of DF Station USM-6C) from U.S. Sector of Berlin 

d. One Line Unit, BE-77: This equipment is an electrical devic.e 

especially designed for use as part of Army tacti.cal (field) teletypewriter 

sets which transmit and receive direct-current (d-c) neutral type line signals. All models of the line unit make the necessary connections between 

a d-c power source, a wire line circuit, and the teletypffi't.Titer equipment, 

repeat teletypewriter signals transmitted to, and received from, the/line 

into the teletypewriter receiving mechanism, measure and adjust line/ current, 

and adjust quality (bias) of the received signals. 

5. As additional pertinent information, it is to be noted t.hat the 

teletype circuits consist of two pair underground cable from the/DF site to 

the cable head approximately 300 yards south of the site. Commercial power 

is furnished through underground cable from the Main Administration Building 

atl I Airfield. 

6. The con~em ~ressed ~ relative to the impairment of the 

present low noise level which exists atl . ~s fully appreciated. Particular attention will be givento~his aspect in considering any equipment 

used by USM-6C at the site and every mea,ris possible will be taken to maintain the existing low noise level. To this end, a~suranee can be given 

that all equipment used will be shielded and/or suppressed to prevent objectionable spurious electromagnetic radiations. EO 3 . 3 (h) (2 ) 

FOR THE ASSISTANT CHIEF OF STAFF, G-2 

Copy furnished: 

The Executive Secretary 

U.S. Communications Intelligence 

Board 

Washington 25, D. C. 

- 3 -

'POP 8ECR:Ef1 

PL 86-36/50 USC 3605 

(SIGNED) 

J. H. MONTGOMERY, JR. 

Colonel GS 

Chief, Plans and 

Policy Office