Icom IC-M422 Instruction Manual

Also see for IC-M422: Service manual Service manual

3911SPECIFICATIONS AND OPTIONS SpecificationsDD General• Frequency coverage : Tx 156.025–157.425 MHzRx 156.050–163.275 MHz• Mode : FM (16K0G3E), DSC (16K0G2B)• Channel spacing : 25 kHz• Current drain (at 13.8 V) : TX high 5.5 A max.Max. audio 1.5 A max.• Power supply requirement : 13.8 V DC• Frequency stability : ±10 ppm(–20°C to +60°C; –4°F to +140°F)• Dimensions : 164(W) × 78(H) × 139.3(D) mm(Projections not included) 6 15⁄32(W) × 3 1⁄16(H) × 5 15⁄32(D) in• Weight : Approx. 1070 g; 2.4 lbDD Transmitter• Output power : 25 W/1 W• Modulation system : Variable reactance frequencymodulation• Max. frequency deviation : ±5.0 kHz• Spurious emissions : Less than –70 dBcDD Receiver• Receive system : Double conversionsuperheterodyne• Sensitivity (12 dB SINAD) : 0.22 μV (typical)• Squelch sensitivity : 0.22 μV• Intermodulation rejection ratio : More than 70 dB• Spurious response rejection ratio : More than 70 dB• Adjacent channel selectivity : More than 70 dB• Audio output power : 4.5 W (typical) at 10% distortionwith a 4 Ω loadAll stated specifications are subject to change without notice orobligation.DD Dimensions Options• MB-69 FLUSH MOUNT KITFor mounting the transceiver to a panel.• HM-157 COMMANDMIC II™External microphone-type controller. Provides optional inter-com operation. 6 m (20 feet) microphone cable and mount-ing base included. Black and white colors are available.• OPC-999 MICROPHONE EXTENSION CABLE6 m (20 feet) microphone extension cable for optional HM-157 COMMANDMIC II™. Up to 2 OPC-999 can be connected.(18 m; 60 feet maximum)Unit: mm (inch)139.3 (5 15⁄32 )78 (3 1⁄16 )28.9(1 1⁄8)164 (6 15⁄32 )148 (5 13⁄16 )60.6 (2 3⁄8 )125.4 (4 15⁄16 )1011