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AN/ARC-225

The AN/ARC-225 radios are used for air-to-air, air-to-ground and ground-to-air communications. It is a variant of the AN/ARC-164 and is deployed solely on JSTARS aircraft. The only difference between the AN/ARC-225 and the AN/ARC-164 is the AN/ARC-225 has a separate receiver port for guard frequencies to allow for a guard receive while the radio is frequency hopping (i.e., in HQ mode). The (JSTARS) UHF system consists of twelve radios and is capable of fixed frequency and anti-jam (AJ) operations. The UHF system is used for short-range (line of sight) air-to-ground and air-to-air tactical communications in multiple frequency ranges. The RTs can be operated simultaneously in any combination of fixed and AJ modes with minimal interference. The UHF system provides secure and non-secure voice transmission and Frequency Range - 225.000 to 399.975 MHz with an output power of 20 watts.

In the joint operations environment, the AN/ARC-225 will provide voice communications with the E-3A Sentry/AWACS and both voice and data communications with AEGIS ships during littoral operations. This radio is limited to LOS operations and has HAVE QUICK anti-jam characteristics. One model of the AN/ARC-225 can be configured to operate in the very high frequency (VHF) FM frequency band that makes it Single Channel Ground and Airborne Radio System (SINCGARS) compatible.

This is an anti-jam UHF-AM (Have Quick III) radio. There are three major aircraft configurations of AN/ARC-225 radio and one ground configuration, AN/VRC-83. The AN/ARC-225 receiver/transmitter (RT) configurations include a panel mount (RT-1518C), remote control (RT-1504) and a remote mounted, data bus compatible (RT-1614). Common components of the radio are the RT, control head and antenna. This UHF-AM radio operates as a single channel or a frequency hopping radio. The aircraft radio transmits with a power output of 10 watts and can receive voice or data modulated signals with the VINSON or VANDAL communications security devices. It has an embedded "ECCM" anti-jam capability. The guard channel of 243.000 MHz can be monitored. It operates in either an analog or digital mode. The latest ARC-225 radios feature Military Standard MIL-STD-1553B interfaces.

The AN/ARC-225 is manufactured by Raytheon for the Airforce's E-8C.