1W USB paging transmitter,138-932MHz,PLL Signal Modulate Format: POCSAG Transmitting Frequency: 430.0MHz Operating Voltage: DC9V  Modulation: ± 4.5KHz@512bps/1200pbs Output Power: 0.5W(≥25dB) (1W max)Output Impedance: 50ohm Transmit Current: 500mA(max) Operating Temperature:  -10-50 Weight: 200gram  (with antenna) Size: (107.8L x 74.6W x 29.2H) mm without clip Antenna Length: 215 mm, Input impedance: 50ohm

AT2600D paging transmitter