... error Rate); * Half duplex: Integration of receiver and transmitter,auto change for receiving and sending; * Low power consumption and ... .2. Application areas * Automatic meter reading(AMR); * Environment monitor system; * Wireless electronic display screen; * Wireless smart terminal: POS, PDA, PTZ; * ... 10-3@9600bps, when antenna is 2m above ground in open area), ≤12Km (BER=10-3@1200bps, when antenna ...