Intuitive User Interface and White Backlit LCD and Keypad
Incorporating Icom's common Marine Family User Interface designed for simple, intuitive operation. A rotary selector and directional keypad provide quick and easy access to the intended functions. The high contrast white backlit LCD and laser-cut keypad match well with modern boat designs.
Active Noise Cancelling
The built-in active noise cancelling provides superb performance. It reduces background noise up to 90% in the received signal and 30% in the transmits signal.
10 W Loud Audio, Public Address and Foghorn
The IC-M424G has a built-in 10 W amplifier that increases the audio output to an external PA speaker. The public address function allows you to make an announcement from the microphone like a loud speaker, the foghorn can also be emitted from the external PA speaker.
Built-in Class D DSC
The built-in DSC watch function monitors Ch. 70 (DSC channel) activity, even while you are receiving another channel. DSC functions include: distress, individual, group, all ships, urgency, safety, position request/report, polling request and DSC test calls.
Built-in GPS Receiver (GPS antenna supplied)
The built-in GPS receiver shows your current position, date/time and can be used for DSC calls. The GPS data source is selectable from internal and external GPS.
Optional White Backlit COMMANDMIC™ HM-195GB/GW
The optional white backlit COMMANDMIC makes it convenient for using the IC-M424G from a separate cabin or tower. All functions of the IC-M424G can be controlled from the COMMANDMIC and can be used as an intercom with the IC-M424G.
AIS Target Call with MA-510TR/MA-500TR
When connected to the optional MA-510TR/MA-500TR Class B AIS transponder, the AIS target call function allows you to make an individual DSC call without having to manually input an MMSI number.
- Simple remote control speaker-microphone, HM-205B/SW
- NMEA 0183 connectivity
- MarineCommander™ compatible
- AquaQuake™ draining function
- IPX7 submersible protection (1m depth for 30 minutes)
- Weather channels with alert function
- Dual/tri-watch function
- Priority and normal scan
- Black and super white versions available
- Supports 4-digit channels
|Frequency range||TX||156.025–157.425 MHz|
|Usable channels||USA, CAN, INT, WX channels|
|Type of emission||16K0G3E, 16K0G2B|
|Power supply requirement||13.8 V DC nominal
(11.7-15.9 V DC)
(at 13.8V DC)
|TX 25 W output||5.5 A|
|RX AF max.||External SP||5.0 A
(RX SP ON)
|Internal SP||1.5 A|
|Operating temperature range||−20°C to +60°C;
−4°F to +140°F
|Antenna impedance||50 Ω (SO-239)|
(projections not included)
|Weight (approx.)||1.2 kg; 2.65 lb|
|NMEA in/out formats||RMC, GGA, GNS, GLL, DSC, DSE|
|Output power (at 13.8 V DC)||25 W, 1 W|
|Max. frequency deviation||±5.0 kHz|
|Frequency tolerance||±10 ppm (−20°C to +60°C)|
|Spurious emissions||Less than −70 dBc (High)
Less than −56 dBc (Low)
|Sensitivity (12dB SINAD)||−13dBμ typ.|
|Squelch sensitivity||Less than −10dBμ|
|Adjacent channel selectivity||More than 70dB|
|Spurious response||More than 70dB|
|Intermodulation||More than 70dB|
|Audio output power
(at 10% distortion, 4Ω load)
|10W typical (Ext. speaker)|
|Receiving frequency||1575.42 MHz|
|Receiving channels||66 channels|
|Satellite differential type||WAAS, EGNOS, MSAS, GAGAN|
Applicable IP Rating
|Ingress Protection Standards|
IPX7 (Waterproof protection)
All stated specifications are subject to change without notice or obligation.
- Hand microphone, HM-205B/SW
- DC power cable
- Mounting bracket kit