... line-of-sight) environment, the transmission range is 0.5~2 kmTransmitter Specification Working Frequency336-344MHz,325-399MHz,460-500MHz(customized ... Bandwidth1.0/1.5/2.0MHz D1 video quality under 2/1.5MHzPower Output≥32dBmCNR≥-30dB @ 30dBmModulationCOFDMConstellationQPSK,16QAM,64QAMFEC1/2, 2/3, 3/4 ... RS232 interfaceDimension140mm*238mm*90mmWeight2.7 Kg H.264 Narrow band transmitter