Glossary

Abbreviations and Acronyms

AC Active Components

ACP Allied Communication Publication

AIRK area inter switch rekey

AM amplitude modulated/amplitude modulation

BFO beat frequency oscillator

CEOI Communications-Electronics Operation Instructions

CG commanding general

CNCE communications nodal control element

COMSEC communications security

CP command post

CW continuous wave

DA Department of the Army

DGM digital group multiplexer

DISCOM division support command

DSB double side band

DTAC division tactical command post

DTMF dual-tone multifrequency

DTOC division tactical operations center

DZ drop zone

EAC echelon above corps

ECB echelons corps and below

ECCM electronic counter-countermeasures

EMC electromagnetic compatibility

EMP electromagnetic pulse

EW electronic warfare

FASC forward area signal center

FDX full-duplex

FLOT forward line of own troops

FM frequency modulated/frequency modulation

FSE fire support element

FSK frequency shift keying

G1 Assistant Chief of Staff, G1 (Personnel)

G2 Assistant Chief of Staff, G2 (Intelligence)

G3 Assistant Chief of Staff, G3 (Operations and Plans)

G4 Assistant Chief of Staff, G4 (Logistics)

GMF ground mobile forces

GW ground wire

HF high frequency

HQ headquarters

Hz Hertz

IAW in accordance with

IED imitative electronics deception

IHFR improved high frequency radio

INSCOM United States Army Intelligence and Security Command

IOM installation, operation and maintenance

JINTACCS Joint Interoperability of Tactical Command and Control Systems

JUH-MTF joint user handbook for message text format

kb/s kilobits per second

KC kilocycles (kilohertz)

kHz kilohertz

km kilometer

LDF lightweight digital facsimile

loc location

LOS line of sight

MC megacycles (megahertz)

MHz megahertz

mi miles

MODEM modulation/demodulation equipment

MOPP mission-oriented protection posture

MSE mobile subscriber equipment

NA not applicable

NATO North Atlantic Treaty Organization

NBC nuclear, biological, chemical

NCO noncommissioned officer

NCS net control station

norm normal

NRI net radio interface (see RWI)

NS node switch

NSA National Security Agency

NSK narrowband shift keying

OPCODE operations code

OPLAN operations plan

OPORD operation order

OPSEC operations security

PCM pulse code modulation

PEP peak envelope power

RATT radio teletypewriter

RC Reserve Components

rcv receiver

rec receive

recon reconnaissance

retrans retransmission

rev reverse

RF radio frequency

RT receiver-transmitter

RWI radio wire integration (changed to NRI-net radio interface)

S1 Adjutant (US Army)

S2 Intelligence Officer (US Army)

S3 Operations and Training Officer (US Army)

S4 Supply Officer (US Army)

SCCS satellite communications control system

SHF super high frequency

SIGCEN signal center

SIGINT signals intelligence

SINCGARS Single-Channel Ground/Airborne Radio System

SOI signal operation instructions

SOP standing operating procedure

SSB single side band

STAJ short term anti-jam

suppl supplement

tac tactical

TACFIRE tactical fire direction system

TACSAT tactical satellite

TACSATCOM tactical satellite communications

TCC telecommunications center

TOC tactical operations center

TOE table(s) of organization and equipment

TRADOC United States Army Training and Doctrine Command

TRI-TAC Joint Tactical Communications

VF voice frequency

VHF very high frequency

VRC vehicular radio configuration

w watt

xmit transmit

XTAL crystal

Terms

BREVITY LIST.

A list used to shorten transmissions. It does not provide security.

DETENT TUNING.

A method of tuning a radio to an operating frequency where the dial clicks into place at each frequency.

FIBER-OPTIC CABLE.

A small, lightweight cable using pulses of light for transmission. Very low error rates but extremely susceptible to damage.

JAMMING.

The intentional transmission of radio signals in order to interfere with the reception of signals from another station.

KEY LIST.

A publication containing the key for a particular cryptosystem in a given cryptosystem.

MODULATE.

To vary the amplitude, frequency or phase of a wave by impressing one wave on another wave of constant properties.

NESTOR.

A communications security device.

NET.

Organization of stations capable of direct communications on a common channel, often on a definite schedule.

NET AUTHENTICATION.

Identification used on a communications network to establish the authenticity of several stations.

PARKHILL.

COMSEC device for HF radios.

PATCH PANEL.

A panel that contains means for changing circuit configurations; usually, it consists of receptacles/jacks into which jumpers/plugs can be inserted.

PATCHING.

Connecting two lines or circuits together temporarily by means of a patch cord.

POLARITY.

A condition by which the direction of the flow of current can be determined in an electrical circuit. Having two opposite conditions; one positive and one negative.

SECURITY CODE.

A code used to hide meanings from another party.

SIDEBANDS.

The frequency bands on both sides of the carrier frequency.

SQUELCH.

To shut off the audio output of a radio when a signal is not being received.

TRAINS.

A service force or group of service elements which provide logistics support.

TROPOSPHERIC SCATTER (TROPOSCATTER).

The propagation of radio waves by scattering, as a result of irregularities or discontinuities in the physical properties of the troposphere.

VINSON.

COMSEC device for combat net radios.