RI-70M has combined with ICOM IC-706MK2 transceiver, which has embedded its advanced technologies such as unique technique of burst-error, drop-error and insertion-error correction, spread spectrum, very low bit rate voice compression, cryptography and hardware. It provides perfect error-free real time communication in very difficult radio channel even under gauss noise, fading and multi-path delay and strong spectrum electronic jamming with its time factor reaching nearly 90%.