ICOM VHF Fixed Mounts Radio Marine Transceiver - IC-M605

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This VHF/AIS Radio Matches Your Boat in Performance, System Flexibility and User-Friendliness


All functions of the IC-M605 (including DSC and distress operation) can be remotely controlled with up to three controllers, RC-M600 COMMAND HEAD and/or HM-195 series COMMANDMIC™, with an intercom function available among the main radio and controllers. The system allows for maximum operating flexibility anywhere on your boat.

Wide Viewing Angle 4.3-inch Color TFT LCD

First in its class, the color LCD provides nearly a 180 degree viewing angle. The 4.3-inch wide display has high resolution characters and function icons. The night mode screen provides the optimal viewing brightness for comfortable operation in the dark.

Menu screen Night mode

Integrated AIS* Receiver

With an integrated AIS receiver, the IC-M605 can show real-time AIS vessel traffic information on the display. The AIS combo screen enables you to monitor the AIS plotter during basic operation. You can directly call a selected AIS target from the AIS screen using an individual DSC call.

AIS plotter AIS target list

Intuitive User Interface

A combination of the directional keypad and soft keys provides simple operation. Most used functions are assigned to soft keys (at the bottom of the display) for quick one push function access. The large ten-key pad enables you to smoothly enter channel numbers, MMSI numbers with ID names and so on.

Class Leading Receiver Performance

A weak signal adjacent to a strong signal can be clearly received by the IC-M605. Its commercial grade receiver performance (selectivity and IMD: more than 80 dB) provides reliable communication at all times.

Active Noise Canceling

The Active Noise Canceling digitally removes background noise from both transmit and receive audio and provides clear communication in a noisy maritime environment.

Last Call Voice Recording

The last call voice recording function automatically saves up to two minutes of an incoming call. Don’t miss any incoming messages.

Private Conversation

With an optional voice scrambler unit, UT-112, the IC-M605 provides 32 tone secure conversation. This function is useful when you want to share private information with consort ships.

Provides Clear, Loud Audio

The IC-M605’s internal speaker enhances intelligibility of received calls. The waterproof, paper speaker-cone provides superior sound quality with a wide frequency range and a flat frequency response for powerful, yet clear audio.

30 W Two-Way Hailer and Automatic Foghorn

When connected to the optional horn speaker, SP-37, you can talk with crews on the deck or shore from the radio’s microphone and can hear any reply via the horn speaker. Also available the RX hailer function and four patterns of automatic foghorn.

NMEA 2000™, NMEA 0183/-HS Connectivity

Using NMEA 2000™ connectivity, the radio can exchange GNSS, AIS reports, DSC call information data, radio frequency and PGN list data on the network. NMEA 0183/-HS GNSS position data Private Conversation can also be converted to NMEA 2000™ data for other equipment.

Other features

  • IPX8 submersible (1 m depth of water for 60 minutes)
  • Dual and Tri-watch functions
  • Weather channels with alert function
  • DSC Multi-task function
  • AquaQuake™ prevents audio degradation from a water-logged speaker
  • Instant-access button for Channel 16 and call channel
  • Supplied speaker microphone, HM-205RB can be connected to the rear panel
  • Compatible with the Icom’s marine navigation system, MarineCommander™

Supplied accessories

  • Speaker microphone, HM-205RB
  • GNSS antenna, UX-241
  • Microphone hanger
  • DC power cable
  • Conversion cable, OPC-2384*
  • Mounting bracket kit

Configuration Variations




Frequency range Tx 156.025–161.600 MHz
Rx 156.050–163.275 MHz
CH70 156.525 MHz
AIS1, 2 161.975, 162.025 MHz
Usable channels USA, CAN, INT, WX channels
Type of emission 16K0G3E (FM), 16K0G2B (DSC)
Power supply requirement 13.8 V DC (11.7–15.9 V DC)
Current drain Tx 25 W output 6.0 A
Rx Max. audio 8.0 A
Operating temperature range –20°C to +60°C; –4°F to +140°F
Antenna impedance 50 Ω (SO-239)
Weight (approximately) 1510 g; 3.3 lb




Output power (at 13.8 V DC) 25 W, 1 W
Max. frequency deviation ±5 kHz
Frequency tolerance ±5 ppm
Spurious emissions Less than –70 dBc (at 25 W)
Residual modulation More than 40 dB
Adjacent channel power More than 70 dB




Intermediate frequency 30.15 MHz, 450 kHz (1st/2nd)
  CH70 21.70 MHz, 450 kHz (1st/2nd)
Sensitivity (at 12 dB SINAD) 0.22 μV typical
  CH70 (1% BER) 0.71 μV emf typical
Adjacent channel selectivity More than 80 dB
  CH70 (1% BER) More than 80 dBμ emf
Spurious response More than 77 dB
  CH70 (1% BER) More than 73 dBμ emf
Intermodulation More than 80 dB
  CH70 (1% BER) More than 73 dBμ emf
Hum and noise More than 40 dB
Audio output power (at 10% distortion) More than 15 W
with a 4Ω external speaker

Applicable IP Rating

MIL-810 G
Low Pressure 500.5 I, II
High Temperature 501.5 I, II
Low Temperature 502.5 I, II
Temperature Shock 503.5 I–C
Solar Radiation 505.5 I
Rain 506.5 I, III
Humidity 507.5 II
Salt Fog 509.5
Dust Blowing 510.5 I
Immersion 512.5 I
Vibration 514.6 I
Shock 516.6 I, IV

Ingress Protection Standard

Water IPX8 (1 m depth water for 60 minutes)

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