

The secure devices are compatible if the same cryptonet variable is used in the ICOM radio and the VINSON device. The RT-1523 has internal COMSEC circuits (origin of the ICOM designation), and the RT-1439 uses the VINSON secure device. The main difference between radios is the device used to provide secure communication. (1) Either the RT-1523 ( Figure 3-1) or the RT-1439 ( Figure 3-2) is common to all ground-based sets. All avionic models require external COMSEC devices. There are two ground unit versions (RT-1523 integrated COMSEC (ICOM) and RT-1439 non-ICOM) and three avionic versions (RT-1476/1477/1478). The primary component of SINCGARS is the receiver/transmitter (RT). Additionally, modular design lessens the burden on the logistics system to provide repair parts.ī. SINCGARS radio set configurations provide identical, or in most cases, improved capabilities when compared to the AN/VRC-12 series radio sets they replace. The individual components are totally interchangeable from one radio set to the next. SINCGARS radio systems are modular component sets.
