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Commander's Tactical Terminal (CTT)

Primary Purpose The CTT is a joint system that provides the war

fighter access to information from selected

national and theater level, near-real-time

intelligence data broadcasts. This information

is used to enhance the commander's ability to

perform intelligence preparation of the battle

space (IPB); maintain situational awareness (SA);

receive indications and warnings (I&W); and

provide additional targeting information.

Sub-Functions CTT feeds information into a variety of connected

intelligence, operations, air defense, and fire

support nodes and systems.

Equipment Requirements CTT consists of the USC-55 Tactical Command

System with its components as the CD-81 Signal

Data Processor, RT-1714 Radio

Receiver/Transmitter, and cable assembly. CTT

has three terminal configurations: CTT1, CTT2

(CTT/HR), and CTT3 (CTT/H3). CTT1 has one

full-duplex channel for transmit and receive in

TRIXS. CTT2 has two channels for receive in

TRIXS, TIBS, TDDS and TADIXS-B. CTT3 has three

channels for receive in TRIXS, TIBS, TDDS and

TADIXS-B, and one channel for transmit in TRIXS

and TIBS.

Connectivity Requirements All operator selectable functions are manipulated

through the host system interface. The CTT has

an UHF frequency range of 225 MHz to 400 MHz.

Channels are 5 KHz and 25 KHz bandwidth. The CTT

provides HAVE Quick II (HQII) frequency hopping

control and is frequency and bandwidth compatible

with other HQII compatible systems. The CTT

operates simultaneously with any number of HQII

Nets without mutual interference.

Crypto Requirements The CTT Communications Security

(COMSEC)/Transmission Security (TRANSEC) Function

contains two embedded COMSEC algorithms --

KGV-11 and KGR-96. CTT can be operated at the

Special Compartmented Information (SCI) or SECRET

collateral security levels. Each broadcast

received by CTT has unique cryptographic key


Normal Locations CTTs are found on fixed, mobile, airborne, and

surface platforms. CTT is the most common

Intelligence Broadcast Receiver (IBR) currently

integrated into Marine Corps systems. CTTs are

present in the Tactical Air Operation Center

(TAOC) in the Sector Anti-Air Warfare Facility

(SAAWF), and Tactical Air Command Center (TACC)

which are parts of the Marine Air Command and

Control System (MACCS). Also CTT is found in the

Tactical Electronic Reconnaissance Processing

and Exploitation System (TERPES), and the

Intelligence Analysis System (IAS). Army Systems

include Guardrail Common Sensor (GRCS) (RC-12),

GRCS Integrated Processing System (IPF), Joint

Surveillance Target Attack Radar System (JSTARS)

Common Ground Station (CGS), and the Patriot

Operations Center. Air Force systems include

Rivet Joint (RC-135), U-2 and Contingency Airborne Reconnaissance System (CARS) Deployable Ground Station (DGS). Navy systems include selected aircraft carriers, Aegis Cruisers, and destroyers.

Information Managed The terminals allow users to receive Integrated

Broadcast Service (IBS) networks: Tactical

Reconnaissance Intelligence eXchange Service

(TRIXS), Tactical Information Broadcast Service

(TIBS), TRAP (Tactical Related APplications) Data

Dissemination System (TDDS), and Tactical Data

Information eXchange System-B (TADIXS-B). In

addition to receiving, CTT transmits TRIXS or

TIBS data on those respective networks (CTT3


Products Created CTT receives and transmits compatible broadcast

intelligence derived data messages and exchanges

those messages with a variety of connected user


Lead Service/Contractor US Army/Raytheon.

Current Fielding Status System quantities fielded DOD wide: CTT1

unknown, CTT/HR ~ 280, and CTT/H3 ~ 175. The

USMC has ~ 36 CTT2 and CTT3s. Fielding is


Known Problems CTTs frequently lose receive sync without

operator notification and fails to regain sync

without operator intervention. System is capable

of processing incoming messages faster than it

is able to output processed messages on its

serial interface connection.

DIICOE Compliance Rating None.

Point of Contact Mr. David Whitney, HQMC, Intelligence Dept, Plans

and Policy Division, Tactical Exploitation of

National CAPabilities (TENCAP).

Capt Thomas Gainor, USMC, MCCDC, WDID,

Requirements, C4I, Intelligence Requirements.

GySgt Michael Meyer, MarCorSysCom, C4ISR, PM

Intelligence, IBR Project Officer.

Updated by Capt Michael Brooks, USMC, CCSC-01.



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