IC-M424 VHF Marine Transceiver

Active noise cancelling

The built-in bidirectional active noise cancelling reduces background noise to up to 90% and improves both your transmitted voice and incoming call. You will hear better, be heard better.

Noise cancelling off

Noise cancelling on


10W Loud Audio, Public Address and Foghorn

The IC-M424 has a built-in 10W amplifier that increases the audio output from additional external speaker. The public address function allows you to make an announcement from the microphone like a loud speaker, and the foghorn can also be emitted from the additional external 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.


The new optional COMMANDMICIV makes it convenient for using the IC-M424 from a separate cabin or tower. All functions of the IC-M424 can be controlled from the COMMANDMICIV.

Common GPS/NAV Interface

When connected to an external GPS receiver, current position and time are shown on the IC-M424's display. When receiving position information from another vessel, the IC-M424 can transfer it to a navigational device via NMEA 0183 connectivity.

MarineCommanderTM Compatible

When connected to the MarineCommander, the received DSC message pops up on the multi-function display.

And more

  • MA-500TR AIS transponder compatible
  • AquaQuakeTM draining function
  • IPX7 submersible protection (1m depth for 30 minutes)
  • Weather channels with alert 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
Product Features
Frequency Range
156.025–157.425 MHz
156.050–163.275 MHz
Usable channels INT, USA, CAN, WX channels
Type of emission 16K0G3E (FM)
Power supply requirement 13.8V DC ±15%
Current drain (at 13.8V DC)
  Tx 25W output
  Rx AF max. (RX SP ON)
5A (External speaker)

Operating temperature range

-20°C to +60°C; -4°F to +140°F

Antenna Impedance 50Ω (SO-239)
Dimensions (W×H×D)
(Projections not included)
180 × 82 × 119.9 mm;
7.09 × 3.23 × 4.72 in
Weight (approx.) 14kg; 3.09lb
NMEA in/out formats RMC, GGA, GNS, GLL, DSC, DSE
Output power (at 13.8V DC)

25W, 1W

Max. frequency deviation ± 5 kHz
Frequency stability ±10ppm (-20°C to +60°C)
Spurious emissions Less than –70dBc
Residual modulation More than 40dB
Adjacent channel power More than 70dB
Audio frequency response +1dB to –3dB of 6dB octave
from 300Hz to 2500Hz
Intermediate frequency 1st 21.7MHz, 2nd 450kHz
Sensitivity (at 12dB SINAD) 0.22µV typical
Squelch sensitivity
Less than 0.22µV
Adjacent Channel Selectivity More than 70dB
Spurious response More than 70dB
Intermodulation More than 70dB
Hum and noise ratio More than 40dB
Audio output power
External speaker
(at 10% distortion, 4 ω load)
10W typical

Measurements made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation.

Applicable IP Rating
Ingress Protection Standard
Water IPX7 (Waterproof protection)
Product Accessories

    Allows you to control the IC-M424 functions from a remote location up to 18.3m, (60ft) with two OPC-1541 cables. The intercom function is also available.

    Size (W x H x D): 65.1 x 144.5 x 37.0mm; 2.56 x 5.69 x 1.46 in.

    Supplied accessories:

    • 6.1m (20ft) of cable
    • Mountin base for calbe connector
    • Microphone Hanger


    6.1m (20ft.) of extension cable for additional lengthening for usw with the COMMANDMIC IV. Up to two cables available..


    For flush-mountin the IC-M424 to a flat surface. Same as supplied.


    Your choice of black or white.

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