... high performance, high reliability. QPSK/16QAM modem, the data stream is processed by the energy diffusion random processing, ... . Greatly improve the bit error rate performance of the system, and the anti-interference ability, anti-multipath fading.Properties ... business and managementService phone3.5mm(1/8 inch)*1Auxiliary data interface19.2kbit/s, RS232C, RJ45Software upgrade interface115.2kbit/s ...