Icom M804 MF/HF Marine SSB Transceiver

with AT141 Antenna Tuner Unit

The IC-M804 is a long-range MF/HF Class E DSC radio for ocean-going sailors and commercial non GMDSS operators. Based on the MED approved Class A GMDSS radio GM800, the IC-M804 is packed with features to keep users safe including an intuitive user interface, and colour TFT LCD display, audio replay, GPS and more. 

Class E DSC MF/HF SSB Radio: The IC-M804 meets ITU-R M.493-15 Class E DSC regulations and is based on the MED approved GM800 Class A GMDSS radio. The IC-M804 will provide long-distance communications for non-GMDSS vessels with almost identical features and functions except for the different DSC class. In an emergency, by pressing the large independent Distress button, send an automated digital Distress signal. The digital Distress signal with GNSS coordinates calls for help from other ships or coastal stations.

Built-in DSC Watch-Keeping Receiver: The dedicated DSC watch-keeping receiver continuously scans the six distress channels in rotation. A total of 100 MMSI numbers (75 Individual and 25 Group) for DSC calls can be stored with a 10-character ID name.

Intuitive User Interface: The combination of directional keypad and soft keys provides simple operation. The most common functions are assigned to soft keys (at the bottom of the display) for quick push function access. The large ten-key pad enables the smooth entering of channel numbers, MMSI numbers with ID names and so on.

4.3 inch Wide Viewing Angle Colour TFT Display: A high-resolution colour LCD provides an almost 180 degree very wide viewing angle and displays characters and function icons clearly. The night mode display ensures good readability in the dark for further convenience.

NMEA 2000™, NMEA 0183/-HS Connectivity: Using NMEA 2000™ connectivity, the IC-M804 can exchange GNSS, DSC call information, radio information and PGN list data on the network. NMEA 0183/-HS GNSS position data can also be converted to NMEA 2000™ data for other equipment.

Two Minutes Voice Recorder Memory: The Voice Recorder function automatically records the last 2 minutes of receiving audio.

Ready for HF E-mail Operation: The IC-M804 can be set to memorise the HF e-mail access frequency, mode and filter settings into the email channels and be selected with a simple operation. Up to 160 e-mail frequency channels and connection terminals for a PC and e-mail modem are available.

Meets Strict Environmental Requirements: The IC-M804 has passed rigorous environmental testing and quality assurance processes. It is designed to provide reliable operation and corrosion resistant durability under harsh maritime environments. The controller has IPX7 protection (1 m depth of water for 30 minutes).

Includes AT-141 Automatic Antenna Tuner: The AT-141 automatic antenna tuner matches all bands to the antenna. If due to a fault the automatic tuner cannot tune the antenna, the IC-M804 bypasses the tuner and will display an alert on the display.

Key Features

• Class E DSC MF/HF SSB Radio
• Distress Button for Emergency
• Built-in DSC Watch-Keeping Receiver
• Intuitive User Interface
• 4.3 inch Wide Viewing Angle Colour TFT Display
• NMEA 2000™, NMEA 0183/-HS Connectivity
• Two Minutes Voice Recorder Memory
• Ready for HF E-mail Operation
• Meets Strict Environmental Requirements
• CE marked for the European Radio Equipment Directive (RED)
• Includes AT141 Antenna Tuner Unit
• 125 W (PEP) of RF output at AT-141 output power
• 0.5–29.999 MHz continuous receiver coverage
• Advanced RF direct sampling system employed
• Integrated GNSS receiver and supplied with a 5 metre cable GNSS antenna
• Programmable microphone buttons for quick function access