radio telemetry transceiver fc-201/b features 1. dual pll and dual vco. 2. advanced modulation mode msk for reliable data transmission. 3. the working frequency covers 20mhz. 4. store 16 receiving /transmitting channels. ......radio telemetry transceiver fc-201/b features 1. dual pll and dual vco. 2. advanced modulation mode msk for reliable data transmission. 3. the working frequency covers 20mhz. 4. store 16 receiving /transmitting channels. 5. operating in multiple communication protocols with high compatibility. 6. providing rs-232/rs-485/uart(ttl level) interface, easy to connect with various equipments. 7. built-in software watchdog to ensure long-time reliable work. 8. smt assembly, high integration and advanced technics. 9. modularized design for convenient embedding. specifications: 1) carrier frequency: vhf/uhf 2) ffsk 3) channel spacing: 25khz/12.5khz 4) channel: 16 5) frequency stability: 5ppm 6) interface: rs-232, data rate: 1,200 ~ 9,600bps optional, format: 8n1/8e1/8o1 7) air data rate: 2,400/1,200bps 8) antenna impedance: 50 9) temperature: -20 ~ 60c 10) weight: 150g (antenna port included, heat sink excluded) 11) size: 106 x 54 x 18mm (antenna port and heat sink excluded) receiver: 1) receiving sensibility: 0.25v(12db sinad) 2) adjacent channel selectivity: 65db 3) frequency deviation: 5.0khz 4) clutter and images rejection 65db 5) intermodulation rejection ratio: 65db 6) audio distortion: 3% 7) standby current: 60ma transmitter: 1) rf power: 5w 2) adjacent channel rejection: 65db 3) audio distortion: 3% 4) transmitter startup time: 50ms 5) power supply: 9 ~ 15v dc, 13.8v typical 6) transmitting current: 2.0a (13.8v, 5w)