ICOM IC-M304 MARINE VHF TRANSCEIVER

ICOM IC-M304 MARINE VHF TRANSCEIVERGeneralFrequency rangeTxRx156.025–157.425 MHz156.050–163.275 MHzUsable channels USA, CAN, INT, WX channelsType of emission 16K0G3E, 16K0G2BPower supply 13.8V DC ±15%Current drain (at 13.8V DC)TxRx 5.5A (at 25W output)1.5A (at AF max.)Operating temperature range –20°C to +60°C;–4°F to +140°FAntenna impedance : 50Ω (SO-239)(Antenna not included) Weight (approx.) 825g; 1.8lbNMEA formats NMEA version 2.0 or 3.01RMC, GGA, GNS, GLLTransmitterOutput power 25W or 1W (at 13.8V DC)Modulation system Variable reactance frequency modulationMax. freq. deviation ±5 kHzFrequency error ±10ppmSpurious emissions Less than –70dBc (at 25W)Adj. channel power More than 70dBAudio harmonic distortion Less than 10% (at 60% dev.)Residual modulation More than 40dBReceiverIntermediate freq. 1st 21.7 MHz, 2nd 450 kHzSensitivity 0.22μV typical at 12dB SINADSquelch sensitivity Less than 0.22μVAdj. Ch. selectivity More than 70dBSpurious response More than 70dBIntermodulation More than 70dBHum and noise More than 40dBAudio output power 4.5W typical at 10% distortion with a 4Ω loadMeasurements made in accordance with TIA/EIA 603. All stated specifications are subject to change without notice or obligation.