Functional Classification: Communications

Service: Joint - Navy/Army/Air Force/Marines/Coast Guard

Nomenclature: AN/ARC-210(V)

Equipment Radio: VHF/UHF Electronic Protection Radio

Background: The AN/ARC-210(V) system is composed of a family of Weapons Replaceable Assemblies (WRAs) which can
be configured to meet individual platform and customer requirements. The complete list of the ARC-210 family components is
provided by a matrices for the transceivers, controls, and other ancillary equipment. The specific WRAs in the ARC-210
complement include receiver-transmitters, remote control units, mounting mechanisms and antennas which are chosen dependent
on the mission needs of each platform.

Specifications: Like the predecessor ARC-182 system, the members of the ARC-210 radio family provide full AM and FM
coverage of the Military bands in the 30-400 MHz range. The three primary members of the family are the RT-1556/1556A, the
RT-1747B/1747C, and the RT-1794(C). Standard operating features are:

     Manual or MIL-STD-1553B Control
     ECCM Capability (HAVE QUICK I/II; SINCGARS-V)
     Channel Spacing:  25 kHz in all bands
     Tuning Capability:
          5 kHz with RCU
          2.5 kHz via 1553
     Frequency Accuracy:  1 part per million
     Power Output:
          AM 10W min
          FM 15W min
     Preset Channels:
          25 Simplex frequencies in normal mode (4 for scanning)
          25 ECCM nets
          SINCGARS-V Cue, Cold Start channels
          5 Half-duplex 25 kHz channels for SATCOM
          57 VHF Maritime channels
     TSEC/KY-58 compatible
     Retransmit capability
     CASS/DICASS command link
     Receiver pulse blanking
     Automatic Direction Finding (ADF) receive capability
     121.5/243 MHz guard receiver

                  Band
                         Mode
                                     Purpose
                                                              Function
                 30-88 MHz
                          FM
                               Close Air Support (Tactical)
                                                  normal/secure voice, 150 Hz tone xmission,
                                                  SINCGARS-V, 243 MHz guard
                108-156 MHz
                          AM
                                  Air Traffic Control
                                                  normal/secure voice, 1020 Hz tone xmission,
                                                  ADF, 121.5 MHz guard (108-118 MHz
                                                  receive only)
                136-174 MHz
                          FM
                                 Land Mobile, Maritime
                                                  maritime normal/secure voice, 243 MHz guard
                225-400 MHz
                          AM
                                 Air-to-Air (Tactical)
                                                  normal/secure voice, 1020 Hz tone xmission,
                                                  ADF, CASS/DICASS, HAVE QUICK I/II,
                                                  243 MHz guard
                225-400 MHz
                          FM
                                 Air-to-Air (Tactical)
                                                  normal/secure voice, HAVE QUICK I/II,
                                                  243 MHz guard
 

RT-1556/RT-1556A Baseline System: The baseline system View Radio provides frequency coverage in 25kHz channels, as
well as compatibility with TSEC/KY-58 secure voice operation and existing ADF systems. In addition, the RT-1556A provides
8.33 kHz channel spacing in the Air Traffic Control (ATC) band for compliance with European ATC requirements. The baseline
system provides Single Channel Ground to Air Radio System (SINCGARS) and HAVE QUICK ECCM operation for
compatibility with Army and Air Force frequency hopping radios. The power output is 10 watts minimum in AM mode and 15
watts in FM mode. The baseline system may be controlled, as a remote terminal, via MIL-STD-1553B control bus or controlled,
as a stand-alone system, via a separate Remote Control Unit (RCU). The RCUs are available with red, white, blue-white, or Night
Vision Imaging System (NVIS) compatible green front panel lighting. The weight of the RT-1556 is approximately 12.2 pounds.

RT-1747B/1747C Federated System: The federated system provides all of the capabilities of the baseline system for
Line-of-Sight (LOS) functions. In addition, the federated system provides a 70 MHz IF interface for connection to an external
modem. The use of an external DAMA modem and external COMSEC gives the federated system the ability to perform DAMA
SATCOM communications in a Beyond-Line-of-Sight (BLOS) mode. The RT-1747C provides the 8.33 kHz channel spacing in
the same manner as the RT-1556A. The weight of the RT-1747 is approximately 13.3 pounds.

RT-1794(C) DCS-2000 RT: The RT-1794(C) provides all of the basic LOS functions provided by the baseline system. The
RT-1794(C) provides 8.33 kHz channel spacing in the same manner as the RT-1556A. In addition, the functionality for
DAMA SATCOM BLOS capability is embedded in the RT. Further, the COMSEC functionality required for both LOS and
BLOS is embedded in the RT. The RT-1794(C) does not provide an interface to external COMSEC devices. The RT-1794(C)
provides digital messaging not available in any other member of the ARC-210 family. The RT-1794(C) satisfies the requirements
for interoperability with the Automatic Carrier Landing System by incorporating the functionality of the RT-1379, Link-4A RT.
The RT-1794(C) complies with MIL-STD-188-220A, MIL-STD-2045-47001B, and the TIDP, re-issue 2 to provide digital
messaging using Variable Message Formats (VMF). The RT-1794(C) can process up to 40 (user selectable) VMF messages
selected from the myriad of messages available. Due to the embedded COMSEC, the RT-1794(C) is a Controlled Cryptographic
Item (CCI) and the accounting procedures and handling procedures are different from the other members of the family. The
weight of the RT-1794(C) is approximately 14.4 pounds.

Relation to Similar Equipment: The various members of the ARC-210 family can replace several "single-band" radio sets such
as ARC-51, ARC-101, ARC-159 in a single package. They also provide both HAVE QUICK II and SINCGARS ECCM
capability in a single package radio.

Manufacturer: Rockwell International, Collins Avionics & Communications Division (Cedar Rapids, IA)