Copy 3 F 11-" . z (/v7,Ja 1 1 1v1 I V

DEPARTMENT OF THE ARMY FIELD MANUAL

SIGNAL RADIORELAY COMPANY

F ADQUdiAR'TE d E4PARTE OF 4 THRLY

HEADQUARTERS DEPARTERS, DEPARTMENT OF THE ARMYMARCH 1966

FM 11-9

FIELD MANUAL HEADQUARTERSDEPARTMENT OF THE ARMY

No. 11-9 WASHINGTON, D.C., 10 March 1966

SIGNAL RADIO RELAY COMPANY

Paragraph Pae.CHAPTEn 1. INTRODUCTION

Purpose ............................................................................. 1 8

Scope ............. ...................................... 2 3Comments on publication .... ....._ ................. 8 3References .............. _. .._ .. ............. 4 3Definitions . ................................................. 5 3

2. COMPANY CHARACTERISTICSMission ........................................................ 6 4Assignment and allocation ... ........................ 7 4Capabilities ........................................ .8 4Limitations .- 9.............------.... 9 4Unit category and mobility ........................................ 10 4

3. COMPANY ORGANIZATIONGeneral ..................................... ............................................... 11 5Company headquarters .................................. .... 12 5

Radio relay platoon _ _ ........................ 13 7Carrier platoon .............................. ........ 14 8

4. COMMUNICATIONS IN THE THEATER ARMYIntroduction ........................................ 15 11Theater army communications system ............................ 16 11

Theater army signal command ........................................ 17 11

5. COMPANY COMMUNICATIONS OPERATIONSGeneral ........................................ 18 12Employment ................................................................................. 19 12Type system configurations ................................................... 20 13Command and control ........................................ 21 16Counterinsurgency operations ........................................ 22 17

6. COMPANY ADMINISTRATIVE OPERATIONSGeneral ............................................................................ 23 18Company command post ........................................ ............ 24 18Personnel management ........................................ 25 18Mess operations ......... ............................... 26 18Equipment maintenance .... .................................... 27 18Company supply operations . ....................................... 28 20Company internal communications ........................................ 29 20Training ....................................................................................... 30 21

Standing operating procedures (SOP) ................................ 31 23

TAGO 6702A-200-546-Aprfl 1966

Paragr~h Pas

7. SECURITYGeneral .......................................................................... 32 24Defense measures .. .... . ............................. .................. 33 24

Defense plans ................................ ............................... 34 24Destruction of equipment ................................... . 35 25

APPENDIX I. REFERENCES ............................................. 26

II. CHARACTERISTICS OF MAJOR ITEMS OFSIGNAL EQUIPMENT ................................ ........... .... 28

2 TAGO 6702A

CHAPTER 1

INTRODUCTION

1. Purpose pared in accordance with AR 310-3 and keyedThis manual provides information and doe- to the specific page, paragraph, and line of text

trinal guidance for the employment of person- in which the change is recommended. Reasonsnel and equipment of the signal radio relay com- should be provided for each comment to insurepany as authorized by TOE 11-377E. understanding and complete evaluation. Com-

ments should be forwarded direct to the Chief,2. Scope Organization and Doctrine Division, U. S. Army

Combat Developments Command Communica-a. This manual covers the organization, equip- tions-Electronics Agency, Fort Monmouth, N. J.ment, employment, and administration of the tionsElectronics Agency, Fort Monmouth, N. J.07703.signal radio relay company. The essential guide-lines presented, when coupled with experience, 4 Referenceswill provide the company commander and keywill provide the company commander and key a. Publications that provide detailed informa-personnel of the company with informationneeded in effective communications support. are listed in appendix i.

are listed in appendix I.b. The material presented herein is applicable b. A summary of the technical characteristics

to all army missions in situations such as nu- of the major items of signal equipment author-clear warfare; chemical, biological, and radio- ized in the signal radio relay company is pro-logical warfare; conventional warfare; and vided as appendix II.counterinsurgency.

5. Definitions3. Comments on Publication Terms and abbreviations used in this manual

Users of this manual are encouraged to sub- are in consonance with the latest issues of ARmit recommended changes or comments to im- 320-5, AR 320-50, and JCS Pub 1. Other termsprove this publication. Comments should be pre- are defined in the text where first used.

TAGO 6702A 3

CHAPTER 2

COMPANY CHARACTERISTICS

6. Mission lay systems each providing 12 voiceThe mission of the signal radio relay company channels. One voice channel per system

is to install, operate, and maintain radio term- is capable of terminating eight tele-inal, radio relay, carrier terminal, and carrier graph channels.repeater facilities to connect various headquart- (4) Four Telephone Repeater Sets AN/ers and installations within the communications MCC-3 each of which is employed aszone (COMMZ) into the theater army communi- an attended repeater in a spiral-fourcations system (TACS). cable carrier system or to connect long

spiral-four cable keying lines at a Radio7. Assignment and Allocation Terminal Set AN/MRC-54.

The signal radio relay company is a part of b. The company provides mess facilities andthe theater army signal command and is norm- organizational maintenance of its organic arms,ally assigned to a signal operations battalion motor vehicles, and power equipment.(theater army). The company may be assigned c. Individuals of this organization can engageto a field army. Allocation is one or more per in limited defense against ground attack of thesignal operations battalion assigned to a signal unit's area or installation(s).operations group of the theater army signal com-mand, or one or more per army signal brigade 9. Limitationsas required. a. This unit depends on signal construction

B. Calpabilities units for installation and maintenance of field8. Capabilities cable and unattended repeaters for land linesa.-At full strength, this unit installs, operates, connecting the various supported headquarters

and maintains (including direct support-level into the theater army communications systemmaintenance) the following electronic equip- (TACS).ment: b. This unit is dependent upon other appro-

(1) Thirty Radio Terminal Sets AN/MRC- priate theater units for augmentation of direct73 each of which is employed as a corn- support signal maintenance; direct support main-plete VHF/UHF radio and carrier tenance for vehicles, weapons, and power gener-terminal for a radio relay system pro- ators; general and depot support maintenance;viding 12 voice channels. One voice logistical support; medical services; and religiouschannel per system may be converted services.to provide four teletype channels. c. This unit will require assistance from local

(2) Fifteen Radio Repeater Sets AN/ defense units for security against sabotage andMRC-54 each of which is employed guerrila attack. In a counterinsurgency situa-either as a complete VHF/UHF radio tion, security becomes difficult and requires spe-repeater in a single radio relay system cial attention.providing 12 voice channels, or as acomplete double VHF/UHF radio term- 10. Unit Category and Mobilityinal for two systems each providing 12 This unit is designated a Category II unitvoice channels when terminated in a (reference Unit Categories, AR 320-5). TheCarrier Terminal AN/MCC-6. unit has sufficient prime movers and vehicles to

(3) Eighteen Telegraph-Telephone Term- carry all its personnel and equipment in oneinal Sets AN/MCC-6 each of which is movement by road (100 percent mobile). Allemployed to terminate two spiral-four equipment is air-transportable, making the unitcable carrier systems or two radio re- suitable for immediate reaction situations.

4 TAGO 6102A

CHAPTER 3

COMPANY ORGANIZATION

11. General 12. CompanyThe signal radio relay company consists of a The company headquarters consists of a com-

company headquarters, three identical radio re- pany commander, a facilities control officer, andlay platoons, and a carrier platoon. Each radio enlisted specialists, along with necessary equip-relay platoon consists of a platoon headquarters, ment for company command, administration, anda radio relay section, and a radio terminal sec- facilities control. Company headquarters pro-tion. The carrier platoon consists of a platoon vides services such as training, mess, supply, andheadquarters, a carrier repeater section, and a organizational maintenance of organic arms andcarrier terminal section. An illustration of the vehicles. The TOE authorizes the company head-organization of the signal radio relay company quarters personnel and equipment which may beis shown in figure 1. organized functionally into elements to perform

specific services for the company. These elementsare organized as depicted in figure 2.

SIGNALRADIO RELAY

COMPANY

COMPANY RADIO RELAY CARRIER

HEADQUARTERS PLATOON PLATOON

PLATOON RADIO RELAY PLATOON CARRIER

HEADQUARTERS SECTION HEQUARS REPEATERSECTION

RADIO CARRIERTERMINAL TERMINALSECTION SECTION

Figulre 1. Organization of the signal radio relay company.

TAGO 6702A

COMPANY

HEADQUARTERS

COMMAND AND MESS MOTOR SUPPLY

ADMIN ELEMENT ELEMENT ELEMENT ELEMENT

Figure 2. Type organization of company headquarters.

a. Command and Administration Element. This mechanic's helpers. The TOE authorizes a power-element is made up of the company commander, man for organizational maintenance of the gen-the facilities control officer, the first sergeant, a erator used in company headquarters; for easepersonnel records specialist, a pay specialist, a of operation he is assigned to the motor main-pay assistant, a radio operator, a switchboard op- tenance element. The maintenance element iserator, and a company clerk. The element is authorized a 5-ton wrecker, a 21/½-ton truck withequipped to establish a company headquarters for trailer, a maintenance tent, and automotive main-company command, administration, and facilities tenance tool kits to service organic motor vehiclescontrol. The company commander is authorized and power equipment. The maintenance elementa 1/4-ton truck with trailer. A Radio Set AN/ is capable of establishing and operating a motorGRC-106 is mounted in the ¼-ton truck and pro- maintenance shop, or providing on-site organiza-vides the company commander with the means tional motor maintenance for the operating pla-to communicate with the operating platoons. The toons or sections when they are away from com-facilities control officer plans and supervises the pany headquarters. When one or more of thecommunications operations. A Communications operating platoons are located away from theOperations Center AN/MSC-31 is authorized to company headquarters, personnel from the motorhelp perform his mission. This element is equip- maintenance element may be used to augment theped with a general purpose tent, safe, type- motor maintenance facility of the unit the pla-writers, gasoline engine generator set, and mis- toons are supporting. Details of motor mainten-cellaneous equipment necessary to establish and ance operations are explained in paragraph 27.operate the company CP. d. Supply Element. This element is made up

b. Mess Element. This element consists of a of a supply sergeant, a signal supply-parts spe-mess steward, four first cooks, four cooks, and a cialist, a unit supply specialist, a supply clerk,cook's helper. The element is authorized a 21/2- and an armorer. The TOE authorizes this ele-ton truck, a water trailer, a kitchen tent, ranges, ment a general-purpose tent and a 3/-ton cargofood containers, and tableware necessary to estab- truck with trailer for use in company supply op-lish and operate mess facilities to feed the entire erations and to haul equipment and carry person-company. When one or more operating platoons nel when displacing. The armorer maintains theare located away from the company headquart- unit weapons, and for control purposes is assign-ers, mess personnel may be used to augment the ed to the company supply element. When the op-mess facility of the supported unit. Details of erating platoons are centrally located, weaponsmess operations are explained in paragraph 26. maintenance is performed at the company supply

c. Motor Element. This element consists of a facility. However, when the operating platoonsmotor sergeant, two senior wheeled vehicle mech- are widely dispersed, the armorer can performanics, six wheeled vehicle mechanics, and six on-site maintenance, or the maintenance can be

6 TAGO 6702A

RADIO RELAYPLATOON

| PLATOON l l RADIO RELAY RADIO TERMINALHEADQUARTERS SECTION SECTION

Figure 3. Organization of the radio relay platoon.

provided by the headquarters of the unit sup- a. Platoon Headquarters. The platoon head-ported. Details of the company supply operations quarters is made up of the platoon leader, aare discussed in paragraph 28. platoon sergeant, and a radio operator. The pla-

toon leader and the platoon sergeant provide13. Radio Relay Platoon command supervision and operational control of

The three radio relay platoons provide the per- the platoon's activities as directed by the com-sonnel and equipment to install, operate, and pany commander and facilities control officer.maintain the VHF/UHF radio terminal and The platoon leader is authorized a ¼-ton truckradio relay facilities for the extension trunks with trailer for supervision and coordination ofwithin the area in accordance with mission re- the platoon activities. A Radio Set AN/GRC-106quirements. The platoons are organized by TOE is mounted in the 1/4-ton truck and provides theinto a platoon headquarters, a radio relay section, platoon leader with the means to operate in theand a radio terminal section. An illustration of company command net (figure 14). The head-the internal organization of the radio relay pla- quarters is authorized a 21-ton truck with tanktoon is shown in figure 3. unit, trailer-mounted, used by powermen in

RADIO RELAY

SECTION

5 TEAM S)

HEADQUARTERS 4 . TEAM

Figure 4. Type organization of the radio relay section.

TAGO 6702A 7

RADIO TERMINAL

SECTION

(IC TEAMS)

ECTON RADIO TERMINALHEADQUARTERS TEAM

Figure 5. Type organization of the radio terminal section.

the sections for maintenance and resupply of on-site direct support maintenance of organicMOGAS for power units. radio and carrier equipment. Two powermen and

b. Radio Relay Section. Figure 4 illustrates two powermen helpers are assigned this sectionthe internal organization of the radio relay sec- or perform organizational maintenance on powertion. This consists of a section chief for super- equipment. A 3/4-ton truck is authorized for usevision of section operations; five 3-man radio re- by the section chief in supervision of sectionlay teams, each containing a team chief, a senior activities and for use by maintenance personnel.radio relay attendant; and a radio relay attend- Ten 212-ton trucks are authorized to mount theant to install and operate five Radio Repeater Radio Terminal Set AN/MRC-73 and to tow theSets AN/MRC-54. A radio relay equipment re- trailer-mounted generator set.pairman is assigned to provide on-site directsupport maintenance on the radio relay equip- 14. Carrier Platoonment. A powerman and a powerman helper areassigned for organizational maintenance of the The carrier platoon provides the personnelsection power equipment. A 3/4-ton truck with and equipment to install, operate, and maintaintrailer is authorized for use by the section chief the telegraph and telephone carrier terminalsin supervision of the section's activities and for and telephone carrier repeaters in the extensionuse by maintenance personnel. The TOE author- trunks supporting various headquarters and acti-izes five 21/2-ton trucks to mount the AN/MRC- ities. The platoon is organized by TOE into a54 and to tow the trailer-mounted generator set. platoon headquarters, a carrier repeater section,

c. Radio Terminal Section. Figure 5 illustrates and a carrier terminal section. An illustrationthe internal organization of the radio terminal of the internal organization of the carrier pla-section. The section consists of a section chief oon is shown in figure 6.for supervision of section operations; and ten a. Platoon Headquarters. The platoon head-3-man radio terminal teams, each containing a quarters consists of the platoon leader, platoonteam chief, a senior radio relay attendant, and sergeant, and a radio operator. The platoon lead-a radio relay attendant to install and operate ten er and platoon sergeant provide command super-Radio Terminal Sets AN/MRC-73. Three radio vision and operational control of the platoon'srelay equipment repairmen and a teletypewriter activities as directed by the company commanderequipment repairman are authorized to provide and facilities control officer. The platoon leader

8 TAGO 67o0A

CARRIER

PLATOON

I

HEADQUARTERS REPEATER SECTION TERMINAL SECTION

Figure 6. Organization of the carrier platoon.

is authorized a /4-ton truck with trailer for ate four Telephone Repeater Sets AN/MCC-3.supervision and coordination of platoon activi- A carrier equipment repairman, a powerman,ties. A Radio Set AN/GRC-106 is mounted in and a powerman's helper are also assigned tothe lA/-ton truck and provides the means for the provide direct support maintenance on theplatoon leader to operate in the company corn- section's carrier equipment and organizationalmand net (figure 14). The headquarters is auth- maintenance on power equipment. A /4-ton truckorized a 21/½-ton truck with tank unit, trailer- with trailer is authorized for use by the sectionmounted, used by powermen in the sections for chief in supervision of the section's activities andmaintenance and resupply of MOGAS for power for use by maintenance personnel. Four 3/4-tonunits. trucks are authorized to mount the Telephone

b. Carrier Repeater Section. Figure 7 illus- Repeater Set AN/MCC-3 and to tow the trailer-trates the internal organization of the carrier re- mounted generator set.peater section. This section consists of a section c. Carrier Terminal Section. Figure 8 illus-chief and four 3-man carrier repeater teams each trates the internal organization of the carrierconsisting of a team chief, a senior carrier attend- terminal section. The section consists of a sec-ant, and a carrier attendant to install and oper- tion chief for supervision of section operations;

CARRIER

REPEATER SECTION

( 4 T E AMS )

SECTION CARRIER

HEADQUARTERS REPEATER TEAM

Figure 7. Type organization of the carrier repeater section.

TAGO 6702A 9

SECTION

(I1 TEAMS)

SECTION CARRIER TERMINAL

HEADQUARTERS TEAM

Figure 8. Type organization of the carrier terminal section.

eighteen 3-man carrier terminal teams, each con- are assigned to perform organizational mainten-sisting of a team chief, a senior carrier attend- ance on power equipment. A 8/4-ton truck withant, and a carrier attendant to install and op- trailer is authorized for use by the section chieferate eighteen Telegraph-Telephone Terminal for supervision of the section's activities and forSets AN/MCC-6. Three carrier equipment re- use by maintenance personnel. The TOE auth-pairmen are authorized to perform direct sup- orizes eighteen 2½'-ton trucks to mount the Tele-port maintenance of organic carrier equipment; graph-Telephone Terminal Set AN/MCC-6 andand four powermen and four powermen helpers to tow the trailer-mounted generator set.

10 TAGO 6702A

CHAPTER 4

COMMUNICATIONS IN THE THEATER ARMY

15. Introduction ing and circuit control, and as entry and dropCommunications to and between component out points for circuits to trunk switching centers

services and joint forces within a theater of op- and for extension trunk circuits to user facil-erations is a responsibility of the theater com- ities. Control subcenters are frequently installedmander. The theater commander normally dele- between control centers to provide relay fa-gates authority to provide communications within cilities, as well as access points to the majora theater of operations to the theater army trunking system. Extension facilities from con-commander. The authority for communications trol centers and control subcenters are providedwithin the combat zone is further delegated to to headquarters and activities as their means ofthe field army commanders; however, the theater entry into the TACS.army commander retains the authority for com-munications within the communications zone 17. Theater Army Signal Command(COMMZ). The theater army commander util- The element of the theater army responsibleizes one of his major subordinate commands, the for the installation and operations of the TACStheater army signal operations command, to pro- is the theater army signal command. The organ-vide these communications by means of the ization of the theater army signal command istheater army communications system (TACS). flexible and capable of being tailored to accom-

plish the signal mission of the theater army in16. Theater Army Communications System different theaters of operation. To meet this

The theater army communications system flexibility, the theater army signal command is(TACS) is a multi-axis, multi-channel commu- organized on a functional basis with building-nications network. The system is composed of block TOE signal units of company and battalionradio relay trunking systems, switching centers, size that can be added or deleted as the situationand extension facilities to interconnect major requires. The basic companies are assigned toheadquarters, installations, and logistical com- "type" signal battalions which are formed intoplexes within the COMMZ. Communications "type" signal groups, thus comprising the theaterpaths of high capacity trunking systems criss- army signal command. The signal radio relaycross throughout the communications zone. Con- company is the basic TOE building-block unittrol centers are located at all points where the which provides the radio extension facilitieslongitudinal and lateral systems cross. The signal from the TACS centers and subcenters to head-control centers serve as junction points for patch- quarters and activities served by the TACS.

TAGO 6702A 11

CHAPTER 5

COMPANY COMMUNICATIONS OPERATIONS

18. General terminal equipment at both ends of the extensiona. This chapter is concerned with the primary links and repeater facilities as required. The ra-

employment of the signal radio relay company as dio and carrier terminal facilities installed at thea part of the theater army signal command in outlying activities are connected to the patch pan-establishing radio extension facilities in the the- els, switchboards, and teletypewriter equipmentsater army communications system (TACS). The whi.ch are organic or assigned to the outlying ac-guidance given herein is also applicable to corn- tivities. The radio and carrier terminal facilitiespand operation if the unit is assigned to an army at the other ends of these links connect into patch-signal brigade; used to provide multi-channel ter- ing equipment at control centers and control sub-minal facilities between elements of supported centers which are established by the signal longheadquarters; used to provide communications lines company (TOE 11-347).support in counterinsurgency situations; or em- c. This method of operation presents a problemployed for other operations under any of the in command supervision in that the platoons areseven army missions within the unit's capabili- normally not committed as one entity; but ele-ties. ments from two or more platoons are frequently

b. The signal radio relay company provides the employed to install the system configurationsextension trunk circuits from control centers and needed to provide a single extension facility.control subcenters of the TACS to user headquar- There is no set solution to the method of supervi-ters, installations, other units and activities re- sion once teams are detached from their platoons.quiring access to the major trunking system. Normally platoon headquarters will be separatelyThe extension circuits are installed by elements located from the company headquarters for ef-of the operating platoons of the company using fective control of the operating elements. It maymulti-channel VHF radio and spiral-four cable be desirable for the company commander to laysystems. These systems are composed of various out areas of responsibility and place his platoonconfigurations of radio relay, radio terminal, leaders at the control centers and control sub-carrier terminal, and carrier repeater facilities. centers to supervise teams operating within those

areas.19. Employment d. Platoon leaders of the operating radio relay

a. The company will normally be assigned for platoons and the carrier platoon supervise the in-command and operational control to a "type" sig- stallation, operation, and maintenance of the ter-nal operations battalion of the theater army sig- minal and repeater facilities. Platoon leaders arenal command. Employment of the signal radio responsible for map and ground reconnaissancerelay company is based on operational require- of sites where terminal teams and repeater teamsments assigned the signal operations battalion will be employed. Liaison and coordination will beand the company will normally operate within the required with the supported headquarters, signalbattalion's area of responsibility. Operational units in support of a headquarters, and signalmissions in this role will require elements to be units installing control centers and control sub-dispersed throughout an area of approximately centers. Coordination will include the location of5,000 square miles (12,800 square kilometers). patching or switching equipment to insure the

b. Operating platoons of the company are or- shortest distance possible between cable connec-ganized into terminal and repeater teams which tions and reduce installation time. The carrierprovide multi-channel extension links to connect platoon leader is responsible for coordination withheadquarters and other outlying activities within the signal construction company on spiral-fourthe COMMZ to centers and subcenters of the cable requirements, physical location of attendedTACS. The company installs radio and carrier repeaters, and the installation of unattended re-

12 TAGO 6702A

peaters. Platoon leaders must keep the facilities b. The Radio Terminal Set AN/MRC-73 is acontrol officer informed and up-to-date on opera- radio and carrier assemblage used to provide ra-tional and equipment status of terminal and re- dio relay terminal, carrier telephone, and carrierpeater facilities. telegraph facilities. The various terminal teams

e. Signal cable construction companies of the may be employed to terminate both ends of thetheater army signal operations command have the radio links from the TACS to the headquartersresponsibility for providing, installing, and main- and installations within the COMMZ. An AN/taining the spiral-four cable for carrier systems MRC-73 team located with a signal complex at aand for keying lines between radio and carrier control center or control subcenter provides a 12-shelters at terminal locations. Unattended repeat- channel radio system to a similar outlying termi-ers are provided by the signal radio relay corn- nal team located with a supported headquarters.pany; however, they are installed and maintained The AN/MRC-73 facilities can be arranged toby the signal construction company. The situation provide 11 carrier telephone and 4 carrier tele-may dictate that cable teams be attached to the graph channels, or 12 carrier telephone channelsoperating platoons of the signal radio relay com- over a radio link. Planning distance for a systempany. without repeaters is 25 miles (40 km) between

terminals. Fig. 9 shows such a system configura-20. Type System Configurations tion employing the AN/MRC-73 as a terminal

a. Figures 9 through 13 illustrate several types facility at both ends of the system.of system configurations that could be installedby teams of the signal radio relay company. The c. The Radio Repeater Set AN/MRC-54 is us-type system to be used varies depending on the able as either a radio relay repeater or radio ter-operational requirements, terrain, available equip- minal set. In the signal radio relay company, thement, tactical situation, or other conditions. The AN/MRC-54 may be employed as a single relaynumber of systems and amount of equipment re- to extend a 12-channel VHF radio relay systemquired to support units within an area will vary between two distant radio terminals (AN/MRC-and be dependent upon the density of units in the 73 or AN/MRC-54). Two of the three compo-area and their missions. Concepts for employing nent radios are used as relays and the third set isthe terminal, relay, and repeater facilities must maintained on standby. For planning longer sys-always be flexible since each situation will re- tems, with AN/MRC-54s placed about 25 milesquire different arrangements. For detailed guid- (40 km) apart, system lengths can be extendedance on systems planning, reference should be to a limit of 200 miles (320 km) using seven re-made to applicable equipment technical manuals lays. Fig. 10 shows such a system configuration(app. II), TM 11-2150, and the TM 11-486- employing the AN/MRC-54 as a relay facilityseries. between two AN/MRC-73s.

2I VOICE CHANNELS

TO PATCHING OR TO PATCHING OR

SWITCHING EQUIPMENT I SWITCHING EQUIPMENT

TERMINAL SITE TERMINAL SITE

Figure 9. Type employment of the AN/MRC-7S as a terminal station

TAGO 6702A 13

· I -ITO PATCHING OR TO PATCHING OR

| SWITCHING EQUIPME NT \ j L / SWITCHING EQUIPMENT

TERMINAL SITE TERMINAL SITE

o l

RELAY SITE

Figure 10. Type employment of tle AN/MRC-54 as a radio relay station.

d. If operations require, the Radio Repeater ical distance to the carrier terminal exceeds oneSet AN/MRC-54 may be employed as a double mile, the AN/MCCa3 will extend the keying line12-channel terminal set. It would be used in con- range to about six miles (9.6 kmn). Longer dis-junction with the Telegraph-Telephone Terminal tances will require installation of AN/TCC-11'sAN/MCC-6 to provide circuits over two inde- in the system; however, an AN/TCC-11 mustpendent radio relay systems. Installation of this not be placed adjacent to a radio terminal. Fig. 12type of system would depend on available equip- shows a system configuration employing the at-ment, site locations, and number of circuits re- tended repeater in a keying line.quired. Normally, two of the radio sets in the f. The Telegraph-Telephone Terminal Set AN/AN/MRC-54 are used to terminate two systems, MCC-6 can be used to provide carrier telegraphmaintaining the third radio set as standby. Both and carrier telephone terminal facilities on twoof the telephone carrier terminal facilities of the spiral-four cable systems in addition to its useAN/MCC-6 are used in this employment. The with the Radio Relay Terminal AN/MRC-54 (dcarrier and radio shelters are connected by spiral- and e above) The various carrier terminal teamsfour cable to provide keying line distances of up are employed to terminate both ends of the cableto about one mile without attended repeaters. Fig- (non-loaded spiral-four) extension links from theure 11 shows such a system configuration employ- TACS to the headquarters and installations with-ing the AN/MRC-54 and AN/MCC-6 as a double in the COMMZ. An AN/MCC-6 team, locatedterminal. with a signal complex at a control center or con-

e. Carrier repeater facilities may be employed trol subcenter, provides spiral-four cable circuitsin a spiral-four/VHF radio system. Such opera- to a distant terminal team located at supportedtion would depend on terrain conditions and ter- headquarters or activities. The two Carrier Tele-minal equipment disposition. At a terminal loca- phone Terminals AN/TCC-7 in each AN/MCCtion where the AN/MRC-54 is utilized and phys- 6 provide 12 telephone circuits on each of the two

14 TAGO 6702A

To PATCHING OR

I . X

PW474 IN ,C9 ,

SWI~TCHISWITCHINGNG EQUIPMENTUIPMENT

TE NTERMINAL SITE pIJ 4741A I

l2 l

PA~TCHING| TOPATCHING ORl

S ITCH1INI EEUIPMQUIPMENT

SWITCHING EQUIPMENT

TERMINAL SITE

Figure 11. Type employment of the AN/MRC-54 and AN/MCC-6 as a terminal station-

spiral-four cables. The two voice-carrier Tele- kmn). The AN/MCC-3 will provide dc power to agraph Terminals AN/TCC-4 in the AN/MCC-6 maximum of three unattended repeaters in eachcan be connected to one or more telephone chan- direction of transmission. The unattended tele-nels so as to provide various combinations of tele- phone repeaters AN/TCC-11 are used on cablegraph channels up to one group of 16 channels. systems (non-loaded spiral-four) to provide am-The distance between two terminals can be ex- plification, equalization, and automatic regulationtended beyond six miles (9.6 km) with unattended for carrier frequencies in both directions of trans-repeaters (AN/TCC-11) and/or attended re- mission utilized by carrier facilities. The unat-peaters (AN/MCC-3). The AN/MCC-6 will pro- tended repeaters are spaced at 53/4, mile intervalsvide dc power to a maximum of three unattended (231/4 mile cable reels). Fig. 13 shows a systemrepeaters. Fig. 13 shows such a system configura- configuration employing the AN/MCC-3 and thetion employing the AN/MCC-6 in a spiral-four installation of unattended repeaters in a spiral-cable system. four cable system.

g. The Telephone Repeater Set AN/MCC-3 is h. Local circuits on 26-pair cable are normallyused by the carrier repeater teams to extend the terminated at the AN/MRC-73 and AN/MCC-6range of non-loaded spiral-four cable systems or as shown in figs. 9 through 13. The 26-pair cablesto provide an attended cable repeater point at a are connected to circuit control or patching facil-remote radio relay terminal as described in e ities at the control centers, control subcenters, orabove (fig. 12). The AN/MCC-3 provides ampli- user headquarters and installations. Distance be-fication, equalization, and automatic regulation tween the terminating equipment and patchingof the carrier frequency signal in both directions panel should, if at all possible, be limited to twoof transmission. Distance between any attended cable lengths (500 feet). Since the radio terminalcarrier facility should not exceed 40 miles (64 teams and carrier terminal teams have only a lim-

TAGO 6702A 15

PU74 lAN/M RC 4 - Va

-- I

-I1 I

C'i~ ~~~~~~~~1 OeSWITCHING EQUIPMENT

_I ~- e -TERMINAL SITE

C7--

UP TO 6 MILES-- ~/~

-PU&474 NMRC 73

26 PR CALE24 VOICE CNNELS TO PATCHING ORTO PATCHING Oil SWITCHING EQUIPMENT

TO PATCHING OR TERMINAL SITE

TERMINAL SITE

Figure 12. Type employment of the AN/MCC--3 at a r-emote radio site.

ited number of 26-pair cable lengths authorized observation of signal operations. Extensive useas components of their shelter assemblages, addi- of detailed procedures (SOP) will enhance thetional 26-pair cable will have to be supplied by communications operations of the company.the signal unit providing the patching equipment. b. A facilities control officer in the companyField wire circuits from a user switchboard at a headquarters assists the company commander bysupported unit may be connected directly to the directly overseeing operations of the widely dis-AN/MRC-73 or AN/MCC-6 shelter; or the field persed radio relay platoons, carrier platoon, andwire may be first brought into a distribution box their respective sections and teams. His dutiesand then into the terminating facilities by 26- are to plan, coordinate, displace, and control thepair cable. operating elements of the company so as to insure

installation and continuous operation of the ex-21. Command and Control tensive communications links. He is responsible

a. The company commander is under control for the coordination required with the variousof the battalion commander for operational em- other signal units in order to provide an efficientployment of the company. He is responsible for theater communications system. He keeps theemploying his operating elements in accordance unit commander and battalion staff informed onwith mission requirements and the theater signal the operational status of the company.plan and he insures compliance with battalion op- c. A Communications Operations Center AN/erational directives. Distance between company MSC-31 is authorized in company headquartersactivities and the headquarters means that the for the facilities control officer to plan and controlcommander must extend his operational control the various trunking facilities. The AN/MSC-31through his commissioned and noncommissioned contains a telephone switchboard, local telephoneofficers, and spend much of his time in personal circuits, and drafting and display boards. These

16 TAGO 6702A

Ia C-E

1 2 S01C CHAI -E L

S iI PUA74 AN/FsICC-S' P)474 AN/MC&-/

- 26 pR CABL Ic-

TO, PAo HING OR \|SWITCHING EEUIPMENT ISWITCING EOUIPIIENT

TERMINAL SITE TERMINAL SITE

At

/As

MAX OF ANTCC'II MAX OF AN/TCC -II

NUMBER OF UNATTENDEO REPEATERS(l1/TCC-11) REOUIRED FOR CABLESECTIONS BETWEEN ATTENDD OPOINTS(ANMCC-6 OR ANMCC-3)

MILES KILOMETERS NUMEER OFANFTCC -SIIREQUIRED 1 0

o 5-.. - o ('< '2

5C -I I ,a 9-1l I

i II -17 18-27 2

17 r'3 2 7-36 32! -28.. 36-45 4

286. 34z 45-54 5

4 ,.40 54-653 6

REPEATER SITE

Figure 1S. Type employment of the AN/MCC-3, AN/MCC-6, and AN/TCC-11 in a spiral-four cable systemn.

facilities are provided to display and make cur- c. Assist receiving state in establishing emer-rent changes to operational maps, systems dia- gency civil communications in areas where theregrams, circuit diagrams, and documents required are no communications facilities.by higher headquarters, and local standing oper- d. Extend existing receiving state civil com-ating procedures (SOP). munications facilities to enhance the national

22. Counterinsurgency Operations counterinsurgency effort.Elements of this company will probably be em- e. Assist in training receiving state armed

ployed in support of counterinsurgency opera- forces and civilian personnel in radio communica-tions. Predeployment training should prepare the tions techniques to increase their own communi-unit to utilize its capabilities effectively in coun- cations capabilities.terinsurgency situations. The company may berequired to perform any or all of the following f. Advise receiving state armed forces in train-functions in counterinsurgency operations: ing military personnel.

a. Provide communications support for g. Assist in military civic action on projectsMAAG, Mission, or subordinate unified head- useful to the local population in all levels in thequarters during a counterinsurgency situation. field of communications which would contribute

b. Provide communications support for U. S. to economic and social development and wouldArmy units assisting a receiving state in the con- also tend to improve the relations of the armedduct of counterinsurgency operations. forces with the population.

TAGO 6702A 17

CHAPTER 6

COMPANY ADMINISTRATIVE OPERATIONS

23. General butive factor to the morale of the unit. The closeThe organization and employment of the signal coordination required can be accomplished

radio relay company present problems of com- through visits and use of the communications sys-mand and administration. Communications sys- temn.tems installed by the company will require manyof the operating elements to be located at long 26. Mass Operationsdistances from the company and platoon head- a. The company mess element is under directquarters. Thus, the dispersed nature of the com- supervision of the mess steward, and is authorizedpany will add to the difficulty of performing ad- sufficient personnel and equipment to establishministrative functions. The company commander and operate a company mess on a 24hour basis.should exert every effort to visit each operating Since the mess capability of the signal radio relay

element in the field on a continuing schedule in company is not large enough to support a messorder to coordinate and minimize administrative facility at each location where company person-problems and keep the platoon and section leaders nel will be operating, it will be necessary for per-advised of command policies and procedures. The sonnel employed at these locations to ration withmost common method of coordinating operations the unit or headquarters they are supporting.in subordinate elements of the command is When operating platoons are dispersed, the num-through timely issuance of orders and the prepa- berration and distribution of detailed unit SOP's. mess facility of the supported units is limited.

Augmentation of mess personnel will depend on24. Company Command Post the situation and will have to be coordinated withLocation of the company command post will the supported units or headquarters. The com-

normally be designated by the battalion command- pany mess is operated dismounted and, when re-er in battalion orders. Arranging company ele- quired, is loaded and moved by a 2/2-ton truck.ments with the CP site is the responsibility of the Details of mess operations are contained in ap-company commander. The company commander propriate army publications.is not provided staff officers to assist him in theoperation of the company headquarters and must, b. In counterinsurgency situations, specialtherefore, rely on his noncommissioned officers. messing arrangements may be requireatd ansupThe facilities control officer will keep the company port the w idely deployed teams in isolated andcommander informed of mission operations, either food from the local economy if the unit supportson an informal basis or on regular schedule. food from the local economy if the unit supportson an informal basis or on regular schedule. receiving state civil conuunications facilities.

receiving state civil communications facilities.25. Personnel Management

The operating platoons of the signal radio relay 27. Equipment Maintenancecompany do not have administrative personnel to a. Maintenance is the care necessary to keepperform administrative functions, therefore, all equipment in good working condition. It includespersonnel records are maintained at the company both the ordinary care exercised by operations, inheadquarters. Effective daily coordination of the addition to the repair work performed by trainedoperating platoon's personnel activities must take technicians. Maintenance of company equipmentplace between the platoon leaders and company is the responsibility of the company commander.headquarters. Personnel matters that must be co- The commander must insure that the equipmentordinated include pay, leaves, mail, promotions, issued to the command is properly maintained.assignments, duty roster, decorations and trans- The platoon leaders assume supervisory responsi-fers. Proper personnel management is a contri- bility for equipment issued to their platoons; and

18 TAGO 6702A

the operators assume direct responsibility for (3) Company headquarters is authorized anproper care of the equipment they operate. The armorer to perform organizationalcompany commander, the platoon leaders, and the maintenance on company weapons. Theequipment operators all have specific responsibil- supply sergeant is responsible for theities for the maintenance and care of government organization small arms maintenance.equipment. DA Pam 750-1 serves as a guide to The armorer will normally performcommanders in fulfilling their maintenance re- maintenance in the company CP area;sponsibilities. Maintenance procedures are cov- however, since the operating elementsered in detail in appropriate army regulations of are usually widely dispersed, it may bethe 750-series. Reference to maintenance proced- more practical to perform organiza-ures and equipment records which are main- tional weapons maintenance on-site.tained by operators and maintenance personnel is (4) Maintenance in counterinsurgency op-prescribed in TM 38-750. Company maintenance erations requires continuous emphasiscan be broken down into three areas as follows: on preventive maintenance to insureorganization and employment of maintenance equipment operation under adverse con-personnel, supply of repair parts, and mainte- ditions. Mobile maintenance teamsnance inspections. should be available to make periodic or

on-call visits to service the installedb. The maintenance personnel of the signal ra- equipment of the deployed teams that

dio relay company are organized and employed as are widely dispersed.follows:

c. The repair parts supply procedure for the(1) Each operating section of the radio relay signal radio relay company will depend on the

platoons and carrier platoon is author- deployment of the operating elements and theized electronic maintenance personnel repair parts supply procedures of the supportingand powermen to provide direct support general support units. Operating elements nor-maintenance on communications equip- mally nwill carry a prescribed load of repair partsment and organizational maintenance on to maintain their equipment for continued opera-associated power equipment. These re- tions. Normally, the supply of repair parts forpairmen remain with the operating sec- the operating elements will be coordinated by ation to perform on-site maintenance designated section repairman with the signalsupport. Emergency repairs are pro- supply parts specialist and the motor shop ele-vided as required and periodic mainte- ment of the company headquarters. The requisi-nance services are performed on a sched- tion for repair parts is forwarded on an informaluled basis. Periodic maintenance should basis to the company headquarters. At companybe planned so as not to interfere with headquarters, the requests are screened, consoli-normal operations of the equipment. dated, and forwarded to the direct or general

(2) Company headquarters is authorized a support activity supporting the company. Uponmotor maintenance element to provide receipt of the repair parts at company headquar-organizational maintenance for com- ters, they are segregated according to each re-pany vehicles and for generator sets quest and delivered to the operating element.within the company headquarters. Mo- When an element is operating at a remote loca-tor maintenance operations are under tion, it may request repair parts direct from thethe general supervision of the company direct or general support activity designated tocommannder and the direct supervision provide repair parts support.of the motor sergeant. Tool sets, ve- d. Commanders are responsible for frequenthides and a maintenance shelter are and thorough inspections to insure that mainte-authorized for the motor sergeant to nance is properly performed. These inspectionsestablish a vehicle repair facility in the are the means by which the commander can de-company CP area for those vehicles termine whether the equipment in his organiza-that can be moved to the shop for main- tion is serviceable. Maintenance inspections fortenance. Vehicles which cannot be the platoons should be conducted at a time thatmoved will be maintained on-site. will not disrupt platoon operations. AR 750-5

TAGO 6702A 19

and AR 750-8 provide for type and frequency of able supplies. Internal supply procedures must beinspections. Platoon leaders should be notified in designed to implement and facilitate a responsiveadvance of the inspection if it is to be a formal supply system. The details of company supplyinspection; however, no advance notification is may vary according to the deployment of therequired when the inspection is informal. operating sections; however, the procedures must

e. When the maintenance of organizational be in compliance with AR 735-35.equipment exceeds the capabilities of the com- b. The company property book is establishedpany, arrangements are made for necessary and maintained by the supply sergeant at the com-maintenance support with the supporting direct pany CP. The platoons and sections are issuedsupport maintenance unit. This procedure is fol- TOE and TA property from the supply activitylowed for all equipment utilized by the company, on hand receipt. If the equipment becomes inop-including communications equipment requiring erative due to negligence or fair wear and tear,general support category maintenance, but ex- replacments are drawn in accordance with thecluding medical material and items of clothing, provisions of AR 735-35.bedding, and light textiles. Support for medicalmaterials is provided by the medical activity c. Each individual soldier is issued clothing andserving the area. Support for clothing, bedding, equipment according to the appropriate Table ofand light textiles is provided by the supporting Allowance (TA), and each soldier is responsiblesupply and service direct support battalion, nor- for the proper use and care of his individual cloth-mally on a direct exchange basis. The signal radio ing and equipment. Records for individual cloth-relay company looks to its supporting direct sup- ing and equipment are maintained by the supplyport unit for maintenance and repair parts sup- sergeant at the company CP.port. When general support maintenance isrequired, the direct support maintenance unit d. Company records are not required for ex-arranges for evacuation to the appropriate sup- pendable supplies; however, the company corn-porting general support maintenance unit. This mander should insure that each platoon and sec-includes communications equipment requiring tion exercises supply economy. Expendable sup-general support maintenance. For details on plies are requested by the operating platoons frommaintenance operations, refer to FM-29-22. the company supply element on an informal basis.

The company supply sergeant consolidates theserequests and forwards the formal consolidated

28. Company Supply Operations requisition to the supply activity supporting thea. The acquisition and timely distribution of company.

supplies plays an important part in the accom-plishment of the company mission. The company e. During counterinsurgency operations, cer-commander must be familiar with the status of tain unique transportation problems must be con-

supplies and equipment within his organization, sidered to assure that teams in remote areas aresupplies and equipment within his organization, effectively supplied. Supply planning must con-and must thoroughly consider the logistical sup- effectively supplied- Supply planning must on-andport required fthoroughly curren t and future log istical sup- sider the stockage of larger quantities of essentialport required for current and future operations. i and plaHe must insure that proper planning, record item nning the resupply well in advancekeeping, and close supervision are provided to f the normal requisitioning cycle.produce the necessary steady flow of requiredsupplies. The company commander is assisted in 29. Company Internal Communicationsthis function by the company supply sergeant.They are responsible for assuring that undue de- Communications between company headquar-lay does not occur in accomplishing effective sup- ters and the operating platoons are essential toply support. A signal supply parts specialist is the command and control of company operationsauthorized to provide for the high density of sig- and effective company administrative operations.nal equipment. A supply activity is maintained at The type of communications used will depend onthe company CP to insure that each operating the type message or report that is to be trans-element of the company has its authorized TOE mitted. To provide such internal communications,equipment and is provided quantities of expend- the signal radio relay company has five (5) AM

20 TAGO 6702A

IORR(NCS)DD I

RADIO RELAY PLAT HO RADIO RELAY PLAT HO RADIO RELAY PLAT HQ CARRIER PLAT HO

Figure 14. Type company command and administrative net (AM).

Radio Sets AN/GRC-106 and facilities of the switchboard and help install the localcommon-user telephone system. wiring.

a. AM Radio. Fig. 14 shows a type internal (2) Each platoon will be provided trunkingvoice radio net for the signal radio relay company. circuits (common-user) into the theaterThe HF/AM SSB AN/GRC-106 is utilized by the army communications system installedcompany commander, the three radio relay pla- in its area of operation. This systemtoon leaders, and the carrier platoon leader for provides the company commander, facil-command and administrative traffic. The unit ities control officer, and headquarterscommander can contact the operating platoons elements with telephone service to thewhen they are committed and separated from the platoon headquarters.headquarters. He can contact the platoon head-quarters while making inspection trips to the 30. Trainingvarious terminal and repeater sites. A radio oper- The combat effectiveness of the signal radioator is assigned to company headquarters and relay company will depend on the unit trainingeach platoon headquarters. program. The company commander is responsible

b. Wire Communications. Fig. 15 shows the that all individuals of the company are trained asemployment of wire equipment authorized for the combat soldiers and specialists. The commander issignal radio relay company. assisted in the planning and conduct of training

(1) The unit has a Manual Telephone by the other officers and key noncommissionedSwitchboard SB-22/PT, eight reels of officers of the company. To achieve and maintainfield wire, and telephones to establish a higher degree of proficiency in both fields, thecommunications for company headquar- soldier must be trained in basic military andters. The SB-22 gives local communica- technical subjects. Personnel of the signal radiotions to the company headquarters and relay company are trained in accordance with ap-gives access to the theater army corn- plicable ATP'S and directives from higher head-munications system. A switchboard op- quarters and local command headquarters. Theerator is assigned to operate the local unit training program includes -

TAGO 6702A 21

TO HIGHER HQ

OPERATIONS CENTRALAN/MSC-3I (FACILITY COMMANDCONTROL OFFICER) COMMANDER

MOTOR FIRSTSERGEANT J SERGENT

SUPPLY RADIO RELAYSERGEANT VJ J PLATOON HO

SB -22/PT

MESS f RADIO RELAYSTEWARD 0 PLATOON HO

CARRIER RADIO RELAYPLAT HQ 0 PLATOON HQ

LEGEND:

Q- TELEPHONE TA-312/PT (TOE)

Zft- TELEPHONE TA-312/PT (PART OF FACILITY)

Figure 15. Type wire diagram for the signal radio relay company.

a. Basic Combat Training. This training pro- concerned with administrative support functionsvides personnel with instruction in basic military of the unit.subjects and the primary aspects of individual c. Unit Training. The purpose of unit trainingskills. Basic combat training is a continuing pro- is to combine and integrate the individual skillsgram and review of this training is conducted and operational capabilities of the sections andperiodically. platoons into an organization capable of perform-

b. Advanced Individual Training. This train- ing the assigned mission of the company. Duringing provides personnel with instruction in com- team and section training, close supervision bymon or technical military occupational skills. This the company commander, platoon officers, andphase of training may be given at unit schools, noncommissioned officers is of vital importance.training centers, service schools, or through on-the-job training in the unit. Technical specialists d. Field Exercises. Field training exercisesinclude carrier equipment repairmen and attend- should be conducted under simulated combat situ-ants and radio relay equipment repairmen and ations. During this training, the unit must pro-attendants. Common specialists include clerks, vide communications within the scope of its mis-cooks, drivers, mechanics, and other personnel sion; This type of training should be on a contin-

22 TAGO 6702A

uing cycle to increase the unit's operational effi- The preparation of clear, concise operating pro-ciency and to provide the capability to perform cedures is of primary importance to the success ofspecial missions as required, signal communications. Normally, the initial SOP

prepared during unit training will be detailed and31. Standing Operating Procedures (SOP) lengthy. However, as the unit becomes proficient,

An SOP contains tactical and administrative the SOP can be expressed in less detail. The SOPprocedures and general instructions which the of the unit is based on the SOP of the next highercommander wishes to make routine. SOP's are echelon of command. The unit SOP must be re-combat orders which eliminate the necessity of viewed continually and revised to incorporaterepeating details of instructions for each unit changes in procedures and to eliminate unneces-operation. Normally, an operations order will re- sary details. Detailed instructions for the prepa-fer to the SOP unless the procedures for the op- ration of unit SOP's can be found in FM 24-16eration differ from those contained in the SOP. and FM 101-5.

TAGO 6702A 23

CHAPTER 7

SECURITY

32. General company TOE provides a limited number ofa. Security of the signal radio relay company weapons for active defense; therefore, it must

is a command responsibility. However, because of depend primarily on passive defense for security.the deployment of the operating sections, the com- Defense measures should include the establish-pany commander may require the platoon leaders ment of outposts and warning systems; utiliza-and section chiefs to execute the security function tion of interior guards; and making use ofof each platoon or section. A security plan should natural terrain obstacles.be developed by the company commander and theplatoon leaders. It should be included in the com-pany SOP and embrace all measures to protect A defense plan is developed by the companythe unit against - commander and his staff, and, in order to be ade-

(1) Nuclear blast and the resultant radio- quate, must provide for individual defense andinstallation defense. In establishment of a defense

logic(2) Attlck bactivi. g nd, air, d air- plan, provision should be made for utilization of(2) Attack by enemy ground, air, and air- vehicles as possible armament or as obstacles.

borne elements. Crew-served weapons should cover all avenues of(3) Chemical and biological attack. approach and provide maximum fields of fire and(4) Enemy guerrilla activity. observation. A unit's defense plan will be part(5) Enemy observation. of the command rear area defense plan, thus co-

b. The mission of the signal radio relay com- ordination with the agency responsible for rearpany requires that communications support be area security and area damage control is essen-provided on a 24-hour basis. The dispersion of tial to the economy of forces. The overall defensethe operating platoons may require that a con- plan will include various types of attack. Some ofsiderable amount of the communications effort the types of attack and the measures to be em-of the company be diverted in order that it may ployed against them are as discussed below.provide the necessary security for its installation. a. Defense Against Air Attack. Measures thatTo insure more productive use of the company can be employed are -communications capability, security for the com- (1) Camouflage of the area, and use - con-pany's installations within the various head- cealment or deception devices.quarters supported must be assumed by the army (2) Dispersal of facilities within an instal-troops providing the security force for these lation.headquarters. (3) Blackout discipline.

c. Security, as covered in this manual, is con-sidered to refer only to physical security as op- (4) Constructon of foxholes and other suposed to communications security. Communica-tions security is covered in detail in AR 380-5, b. Defense Against Guerrilla Action. In coun-AR 380-series, and FM 32-5. tries where United States troops are operating,

active guerrilla warfare may be directed against33. Defense Measures signal installations. In a counterinsurgency situ-

Defensive measures may be active or passive ation, the signal radio relay company will requireor both. Active defense is direct offensive action effective security of installations and defenseagainst an attacker. Passive defense is that action against attack.taken to protect personnel and installations (1) Guerrilla activity is directed essentiallyagainst an enemy attack such as camouflage, con- toward capturing equipment and sup-cealment, and dispersion. The signal radio relay plies, and communications supplies are

24 TAGO 6702A

especially valuable prizes. Consequent- be so extensive as to seriously reduce the unit'sly, resupply procedures and techniques effectiveness. See FM 21-41 for individual pro-require special security planning be- tective measures against chemical and biologicalcause of the ambush hazards along attack, and FM 21-40 for unit protective meas-roads. ures against chemical and biological attack. De-

(2) Sites selected for signal installations fense measures that can be utilized include -should be secure against guerrilla ac- (1) Use of protective clothing.tion. Personnel on duty should be alert (2) Use of protective masks and CBR pro-and cautious in order to minimize the tective shelters.effect of sabotage and guerrilla attack. (3) Proper care of protective clothing andHeavier weapons than those organic equipment.to operating teams may be required foremployment in the defense plan. Inaddition, extra grenades, trip flares, (5) Protection of food and water supplies.mines, and barbed wire should be ob- (6) Effective use of decontaminants, de-tained and used to protect the instal- tector kits, and first aid techniques.lation against attack. Emergency com- d. Defense Against Nuclear Attack. In opera-munications procedures to request as- tions where nuclear weapons are employed, com-sistance in case of attack should be manders must anticipate sudden severe person-prearranged. nel losses within very short periods of time. Per-

(3) In counterinsurgency situations, phy- sonnel must be trained and indoctrinated in rapidsical security of installations requires reorganization and in the treatment of casualtiesspecial considerations to assure protec- with minimal professional medical assistance, astion from insurgent attacks. Communi- well as effective use of protective measures. Pro-cations equipment must be dug in and tection against heat, blast, radiation, and otheradequately reveted to assure adequate effects of nuclear warfare includes the defensiveprotection. In addition, receiving state measures listed below. Also see FM 21-40 andforces may be required to supplement FM 21-41.organic elements and to assure that (1) Dispersion of personnel and equipment.unit communications capabilities are not (2) Use of underground shelters for per-diminished because of security require- sonnel and equipment.ments.

(3) Use of firefighting apparatus.(4) Particular attention must be given to (3) Use of frefghtng apparatus.

formulating adequate convoy protectionplans for counterinsurgency situations. (5) Use of radiological detecting instru-The signal radio relay company has ments.many trucks that may be required to (6) Digging-in of equipment wherever pos-displace frequently for various rea- sible.sons. The movement plan must includeprovisions for adequate weapons, corn- 35. Destruction of Equipmentmunications between vehicles - ground When it becomes necessary to abandon an in-and air - and from vehicles to base stallation, the equipment, records, and suppliescamp as well as constant air cover to that cannot be evacuated will be destroyed to denyassist the convoy as appropriate. possible use or study to the enemy. Destruction

c. Defense Against Chemical and Biological will be ordered by the company commander asAttack. Protection against chemical and bio- directed by higher authority and will be accom-logical attack is an important defense considera- plished according to the destruction plan pre-tion. Losses due to exposure to these agents may pared by the company commander.

TACO 6702A 25

APPENDIX I

REFERENCES

1. GeneralThis appendix contains a selected list of publications pertinent to the training and operations

of the signal radio relay company. For additional publications, refer to Department of the ArmyPamphlets of the 310-series.

2. Army RegulationsAR 105-series Communications.AR 230-5 Non-Appropriated Funds and Related Activities; General Policies.AR 310-20 Allied Communications Publications (ACP's) and Joint Army-Navy-Air

Force Publications (JANAP's).AR 320-5 Dictionary of United States Army Terms.AR 320-50 Authorized Abbreviations and Brevity Codes.AR 340-15 Correspondence.AR 350-1 Army Training Policies.AR 380-5 Safeguarding Defense Information.AR 735-11 Accounting for Lost, Damaged, and Destroyed Property.AR 735-35 Supply Procedures for TOE Units, Organizations, and Non-TOE Units.AR 750-1 Maintenance Concepts.AR 750-5 Organizations, Policies, and Responsibilities for Maintenance Operations.AR 750-8 Command Maintenance Management Inspections.

3. Department of the Army PamphletsDA Pam 108-1 Index of Motion Pictures, Film Strips, Slides and Phono-Recordings.DA Pam 750-1 Preventative Maintenance Guide for Commanders.

4. Field ManualsFM 5-15 Field Fortification.FM 5-20 Camouflage, Basic Principles and Field Camouflage.FM 10-20 Organization for Supply of Petroleum Products in Theaters of Operations.FM 10-60 Supply of Subsistence in a Theater of Operations.FM 11-8 Field Radio Relay Techniques.FM 11-20 Signal Operations, Theater Operations.FM 11-21 Tactical Signal Communications Systems.FM 11-15 Signal Cable Construction Battalion.FM 21-5 Military Training.FM 21-6 Techniques of Military Instructions.FM 21-26 Map Reading.FM 21-30 Military Symbols.FM-21-40 Small Unit Procedures in Chemical, Biological and Radiological (CBR)

Operations.

26 TAGO 6702A

FM 21-41 Soldier's Handbook for Chemical and Biological Operations and NuclearWarfare.

FM 21-48 Chemical, Biological and Radiological (CBR) and Nuclear Defense TrainingExercises.

FM 24-18 Field Radio Techniques.FM 24-19 Communications- Electronic Reference Data.FM 24-20 Field Wire and Field Cable Techniques.FM 31-16 Counterguerrilla Operations.FM 31-22 U. S. Army Counterinsurgency Forces.FM 32-5 Communications Security.FM 100-10 Field Service Regulations Administration.FM 100-15 Field Service Regulations Larger Units.FM 100-20 Field Service Regulations Counterinsurgency.

5. Technical Manuals (TM's)TM 11-486-series Electrical Communications Systems Engineering.TM 11-487-series Directories of Signal Communications Electronics Equipment.TM 11-666 Antennas and Radio Propagation.TM 11-679 Fundamentals of Carrier and Repeater.TM 11-685 Fundamentals of Single-Sideband Communications.TM 11-2150 Telephone Carrier Systems.TM 38-750 The Army Equipment Record System and Procedures.

6. JCS PublicationsJCS Pub 1 Dictionary of United States Military Terms for Joint Usage.

TAGO 6702A 27

APPENDIX II

CHARACTERISTICS OF MAJOR ITEMS OF SIGNAL EQUIPMENT

This appendix briefly covers the major items of signal equipment organic to the signal radiorelay company (TOE 11-377). The information presented is intended for signal users and plannersat company level. More detailed technical information may be obtained from appropriate equipmenttechnical manuals. These manuals are listed in the appendix under the "nomenclature" column.

28 TAGO 670To

N~~~~~~~~~~~~~~ ' c~F~ m~ ~ ' O .

CoB -

E &SZ0 o ~ ~ e ' ~ e

g .

~o~ ~ ..

.~,+ ~"e co":: .c . :oa~ ~. ~' D '~

.oZ o~ ·" r;~ .~ s

TAGO 670 2A 29

E

z ~

u~~~P

E r~~~~~~~Er' P. z D z zfi mh a~~~~~u < .4 Pm E ic P 14 d4 E-P, 4 P

C ~Q V2 0

· a ol~ ~ ~ j.a bo~EF ~~~~~~~~.5 ~~~~~~~ ~~~~~ ij C.~~~~~~~~E

co~c~

r "~~~ ~~E CM.E "C k ~

g m~~~~~~~z~.o ~~" 0"

u E P E P El E c- E E- E 1J E

TAGO 6702A 29~r; P · "

By Order of the Secretary of the Army:

HAROLD K. JOHNSON,General, United States Army,

Official: Chief of Staff.J. C. LAMBERT,Major General, United States Army,The Adjutant General.

Distribution:

Active Army:

DCSPER (2) USACDCIAS (1)ACSI (2) USACDCNG (1)DCSLOG (2) USACDCCISG (1)DCSOPS (2) USACDCCAG (5)ACSFOR (2) USACDCCSSG (5)CORC (2) ARADCOM (10)COA (1) ARADCOM Rgn (10)CINFO (1) OS Maj Comd (5)TIG (1) LOGCOMD (5)TJAG (1) Armies (25)TPMG (1) Corps (15)TSG (1) Div (10)OPO (1) Sig Gp (1)CRD (1) Sig Bn (1)CC-E (10) Sig Co. (1) exceptCNGB (1) TOE 11-377 (15)CofEngrs (3) Sig Det (1)CofCh (1) USAWC (2)USACDC Agcy (5) except USACGSC (10)

USACDCCEA (25) Br Svc Sch (3) exceptUSCONARC (10) USAOC&S (19)USAMC (15) USAQMS (25)USAECOM (10) USASCS (12)USAECOM (Phila) (10) USAARMS (5)USACDC (10) USASMLCS (5)USACDCEC (5) USMA (5)USASA (10) USAJFKCENSPWAR (10)

NG: State AG (3); Units - same as Active army except allowance is one copy to each unit.

USAR: Units - same as Active Army except allowance is one copy to each unit.

For explanation of abbreviations used, see AR 320-50.

30 TAGO 6702A

*U. S. GOVERNMENT PRINTING OFFICK: Oso