The system based on the RF13 portable transceiver and the derived mobile sets RF1350 offers fixed frequency radio voice or data communication in VHF band. The RF13 portable transceiver is designed for radio voice or data communication on tactical level in all military branches. It features voice communication via built-in encryption unit, sending of short encrypted messages, selective communication, selectable output power 5 W/0,2 W, up to 9 channel presets, automatic preset scanning and control of most function from a handset. RF1350 mobile sets are assembled from mutually connected RF13 system components. Suitable for vehicle installations or fixed posts and in situations where additional features are not provided by RF13 set, namely substantially increased range, are required. Power output is 50 W. Actual components are specified by the user. All operation features of the RF13 base transceiver can be used during operation.