Frequency Range : UHF 600-850MHz Frequency Response : 40Hz-20KHz Frequency Stability : ±0.005 Modulation Mode : Pi/4 DQPSK Modulation Range : 25 MHz Total Channel : 240 Channels Working Distance : 100m Channel Spacing : 250KHz Dynamic Range : 100 dB Maximum Deviation : <0.5 Audio Output Balance : 0-500 mV