The SINCGARS radio system represents the supporting structure for the tactical communications of the Italian Army and it is constantly used in all the training and operational activities. The SINCGARS is supplied to all Army units, in different versions and in portable or vehicular configuration. It operates on the VHF frequency range with a transmission power that varies in relation to the configurations. Moreover, it has got a mechanism of data transmission protected by wiretappings or interferences by enemy forces.