CHAPTER 2. FUNCTIONING OF EQUIPMENT - TM-11-5820-695-350027

TM 11-5820-695-35

CHAPTER 2

FUNCTIONING OF EQUIPMENT

Section I. FUNCTIONS OF RADIO SETS AN/GRC-144(V), AN/GRC-144(V)3 and A N/GRC-144(V)4

2-2.

Block Diagram Descriptions of Radio Set

2-1.

General

AN/GRC-144(V)

This section describes the major functions of Radio Sets

AN/GRC-144(V), AN/GRC-144(V)3 and AN/GRC-

Standard Cable Terminal Configuration

144(V)4 configurations at the block diagram level. The

(fig. 5-2). In the standard cable terminal configuration,

basic Radio Set AN/GRC-144(V) consists of two

the AN/GRC-144(V) is the radio link between the cable

equipment cabinets:

Transmitter, Radio T-

system and the antenna system and also provides

1054(P)/GRC-144(V)

and

Receiver,

Radio

R-

internal pcm processing for the digital interface between

1467(P)/GRC-144(V). Radio Sets AN/GRC-144(V)3 and

cable and radio. In the-transmit direction, the signal is

AN/GRC-144(V)4 are AN/GRC-144(V) Radio Sets

received by cable (FROM CABLE) and transmitted

modified to high capacity line-of-sight and short range

through the antenna (cable-to-radio). In the receive

wide band radio (SRWBR) configurations respectively,

direction, the signal is received at the antenna and sent

by making wiring modifications and adding new

by cable (TO CABLE) to the next link in the network

upgraded or modified modules to AN/GRC-144(V) Radio

(radio-to cable). Pcm signals require regeneration and

Sets. The AN/GRC-144(V)3 Radio Set configuration

retiming at the interface between cable and radio. The

also consists of two equipment cabinets: Transmitter,

cable terminal configuration utilizes digital data modem

Radio T-1054(P)A/ GRC-144(V) and Receiver, Radio R-

1A12 in Transmitter, Radio T-1054(P)/ GRC-144(V) to

1467(P)A/GRC-144(V) . The AN/GRC-144(V)4 Radio

regenerate and retime the pcm signals. Digital data

Set configuration consists of the identical equipment

modem 1A12 is functionally divided into two parts, one

cabinets used with (V)3 configuration with the addition of

part (cable-to-radio circuits) processes signals in the

Converter Multiplier Assembly CV-3633/GRC-144(V).

transmit direction, the other part (radio-to-cable circuits)

This section describes the major !functions of Radio

processes signals in the-receive direction. The cable

Sets AN/GRC-144(V), AN/GRC-144(V)3 and AN/GRC-

terminal configuration uses both functional parts of

144(V)4 at a block diagram level and the major signal

digital data modem 1A12. Radio Set AN/GRC-144(V) is

paths and significant controls within Transmitters, Radio

connected in the cable terminal configuration by making

T-1O54(P)/GRC-144(V) and T-1054(P)A/GRC-144(V),

the CABLE TERMINAL MODE OF OPERATION

Receivers, Radio R-1467(P)/GRC-144(V) and R-

connection at the radio patch panel in Transmitter,

1467(P)A/GRC-144(V)

and

Converter-Multiplier

Radio T-1054(P)/GRC-144(V). The CABLE TERMINAL

Assembly CV-3633/ ,GRC-144(V). Also, covered in this

OPERATION indicator on the radio patch panel lights

section are explanations of the operating relationships

when this connection is completed. The transmit (cable-

between functional elements of AN/GRC-144(V) Radio

to-radio) and receive (radio-to-cable) signal paths

Sets. Para' graphs 2-2, 2-2.1 and 2-2.2 contain block

through the AN/GRC-144(V) for the cable terminal

diagram descriptions of Radio Sets AN/GRC-144(V),

configuration are described in the following

AN/GRC-144(V)3 and AN/GRC-144(V)4 respectively.

subparagraphs.

Change 6 2-1