Enhanced marine communication
The Icom IC-M423G VHF/DSC Marine Radio is an enhanced version of the Icom IC-M423. This VHF radio is improved with more features to make marine communication easier and more reliable. It comes equipped with an integrated GPS receiver which allows your current position and time to be used for DSC calls. The radio also sports a slick new white backlight LCD for improved visibility, a smart looking new HM-205B Speaker-microphone and a large 45mm diameter speaker.
Icom IC-M423G VHF/DSC Marine Radio Features:
- Built-in GPS receiver
- White backlight LCD and laser-cut keypad
- New HM-205B speaker-microphone
- Active noise cancelling
- Intuitive user interface
- 10W loud audio, public address and foghorn
- Built-in class D DSC
- AIS target call
- MarineCommander compatible
- IPX7 submersible protection
- NMEA 0183 connectivity
- AquaQuake™ draining function
- Favourite channel function
- Dual/tri-watch function for monitoring Ch.16 and/or call channel
- Priority and normal scan
- Built-in attenuator for local communication
- Black and super white versions available
Icom IC-M423G VHF/DSC Marine Radio Specifications:
General
- Frequency coverage: Tx 156.000–161.450 MHz, Rx 156.000–163.425 MHz, CH70 156.525 MHz
- Mode: 16K0G3E (FM), 16K0G2B (DSC)
- Channel spacing: 25 kHz
- Operating temperature range: –20 C to +60 C; –4 F to +140 F
- Current drain (at 13.8 V): TX high 5.5 A maximum, Maximum audio 5.0 A maximum
- Power requirement (negative ground): 13.8 V DC nominal
- Frequency stability: +/- 1.5 kHz (–20 C to +60 C; –4 F to +140 F)
- Antenna impedance: 50 Ohms nominal
- Dimensions (approximately): 180(W) × 82(H) × 135(D) mm ; 7.1(W) × 3.2(H) × 5.3(D) inches
- Weight (approximately): 1.2kg; 2.6lb
Transmitter
- Output power: 25 W/1 W
- Modulation system: Variable reactance frequency modulation
- Maximum frequency deviation: +/-5.0 kHz
- Spurious emissions: Less than 0.25 micro W
Receiver
- Receive system: Double conversion superheterodyne
- Sensitivity: FM –5 dBu emf typical (at 20 dB SINAD); DSC –4 dBu emf typical (1% BER)
- Squelch sensitivity: Less than –2 dBu emf
- Intermodulation rejection ratio: FM - More than 68 dB; DSC - More than 68 dBu emf (1% BER)
- Spurious response rejection ratio: FM - More than 70 dB; DSC - More than 73 dBu emf (1% BER)
- Adjacent channel selectivity: FM - More than 70 dB; DSC - More than 73 dBu emf (1% BER)
- Audio output power: More than 10 W at 10% distortion into a 4 Ohm load
