Fixed Mount VHF and GPS/AIS Receiver Combo with NMEA 2000™ Connectivity

Integrated AIS Receiver

With an integrated AIS receiver, the IC-M506GE can show real-time AIS vessel traffic information on the display. The AIS target call function allows you to easily set up a DSC individual call. The Plotter, Target list and Danger list can be toggled on the display.

NMEA 2000™ Connectivity

With the plug-and-play functionality of NMEA 2000, the IC-M506GE can easily connect to a NMEA 2000 network. The M506GE can receive and transmit GPS (position, course (COG) and speed (SOG)), AIS report and DSC call information data and transmit radio frequency and PGN list data on the network. Using this function, the IC-M506GE can convert NMEA 0183 GPS data to NMEA 2000 data for other equipment.

Last Call Voice Recording

The last call voice recording function automatically saves the last two minutes of the last incoming call. You can replay the received call, and not miss any incoming call.

Active Noise Cancelling

Using digital signal processing technology, the built-in bidirectional active noise cancelling provides superb performance. It reduces background noise to up to 90% in the received signal and 30% fixed in the transmitting signal. The function OFF setting is also possible.

Intuitive Menu-Driven User Interface

Functions menu

The intuitive software key functions provide easy and fast operation to control the multiple functions of the IC-M506GE. The bottom line of the dot-matrix display shows the software key functions which can be toggled with the left and right buttons.

25 W Two-Way Hailer

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. The RX hailer function allows you to monitor the received audio from the horn speaker. The built-in 25 W amplifier increases your talk power, making it loud and clear.

Built-in Horn (Automatic & Manual)

Four horn patterns are selectable for the automatic horn function when it is connected to the optional SP-37 horn speaker.

ITU Class D DSC (Meets ITU-R M493-14)

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. Up to 100 DSC address IDs can be programmed.

GPS Receiver Built-in

Supplied GPS antenna (5 m)

A built-in GPS receiver with external antenna provides your location, bearing and speed by using information from GPS and GLONASS. The acquired position information can be used for DSC calls.

IPX8 Advanced Waterproof

The IC-M506GE and supplied HM-205B microphone can withstand 1m (3.2 ft) depth of water for 60 minutes.

Other Features

・    15 W audio output power (with external speaker)
・    AquaQuake™ draining function
・    Optional voice scrambler, UT-112/A for private conversation
・    MA-500TR AIS transponder and MarineCommander™ compatible

Rear Panel View


Frequency range TX 156.000–162.000 MHz
RX 156.000–163.425 MHz
CH70 156.525 MHz
AIS1, 2 161.975, 162.025 MHz
Usable channels INT, USA* channels
*Available depending on version
Type of emission 16K0G3E (FM), 16K0G2B (DSC)
Power supply requirement 13.8 V DC (10.8–15.6 V DC)
Current drain
(at 13.8V DC)
TX 25 W output 5.5 A
RX AF Max External SP 5.0 A (RX hailer ON)
Internal SP 1.5 A
Operating temperature range −20°C to +60°C
Antenna impedance 50 Ω (SO-239)
Dimensions (W×H×D)
(Projections not included)
178.9×113.9×113.8 mm
Weight (approx.) 1400 g


Output power (at 13.8 V DC) 25 W, 1 W
Max. frequency deviation ±5.0 kHz
Frequency stability Less than ±0.5 kHz
Spurious emissions Less than 0.25 μW


Intermediate frequency
1st 30.15 MHz, 2nd 450 kHz
1st 21.7 MHz, 2nd 450 kHz
−5 dBμ emf typ. (20 dB SINAD)
−4 dBμ emf typ. (1% BER)
Adjacent channel
selectivity CH70 (1% BER)
More than 75 dB
More than 73 dBμ emf
Spurious response
CH70 (1% BER)
More than 75 dB
More than 73 dBμ emf
CH70 (1% BER)
More than 75 dB
More than 68 dBμ emf
Hum and noise More than 40 dB
Audio output power
(at 10% distortion)
More than 15 W with a 4 Ω
RX speaker


Receiving frequency 1575.42 MHz (GPS),
1602 MHz (GLONASS)
Receiving channels 24 channels
Satellite differential type WAAS, EGNOS, MSAS, GAGAN

Applicable U.S. Military Specifications

Icom makes rugged products that have been tested to and passed the following MIL-STD requirements and strict environmental standards.

Standard MIL-810 G
Method Proc.
Low Pressure Storage 500.5 I
Low Pressure Operation 500.5 II
High Temperature Storage 501.5 I
High Temperature Operation 501.5 II
Low Temperature Storage 502.5 I
Low Temperature Operation 502.5 II
Temperature Shock 503.5 I-C
Solar Radiation 505.5 I
Rain Blowing 506.5 I
Humidity 507.5 II
Salt Fog 509.5 -
Dust Blowing 510.5 I
Water Immersion 512.5 I
Vibration 514.6 I
Shock Functional 516.6 I
Shock Transit Drop 516.6 IV

Also meets equicalent MIL-STD-810-C, -D, -E and -F.

Applicable IP Rating and Environmental Test.

Ingress Protection Standard
Water IPX8 (1 m depth water for 60 minutes)

Supplied Accessories

  • Hand hanger
  • DC power cable
  • Mounting bracket kit
  • GPS antenna

Catalogs / Brochures

Brochures Name Size
IC-M506GE 2.24MB

Instruction Manual / Guides

Name Model Name Note

VHF Marine Transceiver