Chapter 6. FUNCTIONING OF EQUIPMENT

TM 32-5895-227-14&P

CHAPTER 6

FUNCTIONING OF EQUIPMENT

Section I. BLOCK DIAGRAMS

one ICOM Outstation. The RICS ICOM position is

6-1 GENERAL. Intercommunication (ICOM) Direction

interconnected to Telephone Sets TA-676/G, DFF, DFR,

Finder Flash (DFF), Direction Finder Report (DFR),

RFP, and Direction Finder Plotter (DFP).

Radio Finger Printing (RFP), and Direction Finder

c. Outstation Positions. All Outstation positions

Plotter (DFP) are the basic groups of the AN/MSQ-71

are interconnected to the AN/MSQ-71 central station

intercommunication system. A typical system (figure 6-

through Connector Assembly MX-7141/M.

1) is comprised of one control interconnected with a

maximum of 33 radio frequency operation group

6-3

DFF/DFR SYSTEM.

positions and a maximum of 35 ICOM group positions.

a. DFF Position. The DFF position is comprised

6-2 INTERCOMMUNICATION SYSTEM.

This

of Radio Receiver Sets R-390A/URR and Teletypewriter

Sets AN/TGC-14C. This position provides dual diversity

section is subdivided into a Trick Chief position and a

receiving capabilities in conjunction with teleprinting.

Sit Control position.

b. DFR Position. The DFR position is comprised

a. Trick Chief Position. Trick Chief, which is the

of Radio Receiver Sets R-390A/URR and Teletypewriter

supervisor position, controls Communications Control

Sets AN/TGC-14C. This position provides dual diversity

Console (CCC) OA-7735/G No. 1 and CCC No. 2.

receiving capabilities in conjunction with teleprinting.

This control establishes intercommunication between 18

ICOM outstation positions with CCC No. 1 and 16

ICOM outstation positions with CCC No. 2. Trick Chief

6-4 RFP SYSTEM. This position is comprised of a

responsibilities include the transfer control operation of

receiver and an analyzer which are confidential. See

Intercommunications Switchboard SB-2601/G with the

the appropriate authority for coverage of this equipment.

Sit Control position (Radio Intercept Control

Switchboard SB-2602/G).

The supervisor monitors

Radio Receiver R-390A/URR and controls the

Telephone Set TA676/G.

b. Sit Control Position. Sit Control position

operator responsibilities include operation of the Radio

Intercept Control Switchboard (RICS) SB-26021G. This

position establishes intercommunication directly with

6-1