... , radio station. 1 .Features Small size, light weight, simple interface, easy installatio. Fully shielded, suitable for external use . Strong ... 16 channels . (3Interface: TTL/RS232/485 by the user select (required custom) . (4Receiver sensitivity:-123dBm (5 Interface rate: 1200/2400/4800/ ... conversion of send and receive data, as long as the interface tosend / receive data, conversion time is short . (8 ...