IC-M400BB VHF marine radio


Space-Saving, Two-Piece Configuration

  • The IC-M400BB consists of a two-piece, black box configuration. All function control including DSC operation, can be made from the COMMANDMIC™, HM-195B/SW, and the RF unit, IC-M400BB, can be installed in an out-of-sight place.

New Intuitive User Interface

  • The new menu system is shared with Icom’s latest models. The bottom line of the dot-matrix display shows the software key functions which can be toggled with the left and right buttons.

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. Hear and be heard more clearly.

10W Loud Audio, Public Address and Foghorn

  • The IC-M400BB has a built-in 10W amplifier that increases the audio output from an 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 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.

Common NMEA Interface

  • When connected to an external GPS receiver, current position and time are shown on the Command mic display. When receiving DSC information from another vessel, the radio can transfer it to a navigational device via NMEA 0183 connectivity.

AIS Target Call with MA-500TR

  • When connected to the optional MA-500TR Class B AIS transponder, the AIS target call function allows you to set up an individual DSC call from the MA-500TR.

And More

  • MarineCommander™ compatible
  • AquaQuake™ water draining function (HM-195B/SW)
  • IPX7 waterproof protection both for IC-M400BB and HM-195B/SW (1m depth for 30 minutes)
  • Dual/tri-watch function for monitoring Ch.16 and/or call channel
  • Priority and normal scan
More Information
Brand Icom


• Frequency range Tx: 156.000 – 161.450MHz
• Frequency range Rx: 156.000 – 163.425MHz
• Type of emission: 16K0G3E (FM), 16K0G2B (DSC)
• Power supply requirement: 13.8V DC nominal (10.8–15.6V DC)
• Current drain Tx 25W output: 5.5A
• Current drain Rx Max audio: 3.5A
• Operating temperature range: –20°C to +60°C
• Antenna impedance: 50Ω (SO-239)
• Dimensions (Projections not included) (W×H×D) IC-M400BB: 216×79×125mm
• Dimensions (Projections not included) (W×H×D) HM-195B/SW: 67.5×144.5×37mm
• Weight (approx.) IC-M400BB: 830g
• Weight (approx.) HM-195B/SW: 400g
• Water IPX7 (Waterproof protection)


• Output power: 25W, 1W
• Max. frequency deviation: ±5.0kHz
• Frequency stability: Less than ±1.5kHz
• Spurious emissions: Less than 0.25μW


• Sensitivity Main: –5dBμ emf typ. (20dB SINAD)
• Sensitivity DSC: –4dBμ emf typ. (1% BER)
• Squelch sensitivity Main: Less than –2dBμ emf
• Adjacent channel selectivity Main: More than 70dB
• Adjacent channel selectivity DSC: More than 73dBμ emf (1% BER)
• Spurious response Main: More than 70dB
• Spurious response DSC: More than 73dBμ emf (1% BER)
• Intermodulation Main: More than 68dB
• Intermodulation DSC: More than 68dBμ emf (1% BER)
• Hum and noise: More than 40dB
• Audio output power (at 10% distortion, 4Ω load) (HM-195B/SW): More than 2W
• Audio output power (at 10% distortion, 4Ω load) (RX Speaker): More than 10W
What's in the Box • COMMANDMIC, HM-195B/SW
• DC power cable