Icom M604 VHF Marine Transceiver

The Icom M604 VHF Marine Transceiver has superior receiver performance. The transceiver has a large LCD with dot-matrix characters, 30-watt 2-way hailer capability, and a built-in ITU Class-D DSC capabilities.

The M604 radio features improved GPS information indication, and front and rear panel microphone connections. The M604 is submersible for up to 30 minutes in 1m of water.

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Item #	Color
ICO-ICM604-41	Black
ICO-ICM604-42	Gray

30 Watt 2-Way hailer capability

When connected to an external hailer horn, communication with other boats, deck or dock hands is easy. The built-in 30W amplifier increases your talk power making your message loud and clear. Four foghorn patterns are also available.

Submersible construction

(1m depth for 30 minutes) The IC-M604, including the supplied microphone, withstands submersion in up to 1.0m depth of water for 30 minutes. It is equivalent to IPX7 waterproofing.* (* except cables)

Built-In ITU Class D DSC

No matter what channel you're tuned to, a separate and independent receiver inside the M604 continuously monitors Ch. 70. The 10-keypad allows simple and efficient operation of the DSC emergency functions, vital for your safety at sea.

Position request & position request

Over and above the DSC, your own and other ships position data can be exchanged with the position request or position report functions. The received position information can be transferred to external GPS or navigation equipment*. In addition, the polling (request/ reply) function checks whether a specific ship is within the communications range. * NMEA 0183 format is required.

Improved GPS information indication

When connecting to an external GPS receiver, the GPS information indication function shows course and speed data as well as position, date and time on the display.

Front & rear panel microphone connection

The speaker microphone can be detached from the front panel and can be connected to the rear panel without any modification. An optional 6.1m (20ft) microphone extension cable, OPC-1000, is available.

RX speaker function

The RX speaker function, "receiver-repeater" allows you to monitor the received radio audio from a hailer horn on the deck or tower. You can also make an announcement on-board from the microphone.

Favorite channel function

This function allows quicker channel selection. Set the "TAG" channel to the channels used most often. When pushing the up/down buttons on the speaker microphone, only tagged channels are selected and untagged channels are skipped. The "TAG" scanning function detects only tagged channels.