Best Icom Marine VHF Radios and Accessories 2026

Compare Icom fixed-mount and handheld marine VHF radios for boating, including models with AIS, DSC, GPS, floating designs, noise cancellation, and compatible speaker microphones.

A dependable VHF radio remains one of the most important communication tools aboard a boat. Unlike a cell phone, marine VHF provides direct communication with nearby vessels, marinas, bridges, and emergency services over established marine channels. A properly configured DSC-equipped radio can add digital distress and direct-calling capabilities when paired with the required vessel information and position data.

Icom offers marine radios ranging from compact fixed-mount units to advanced handheld models with AIS, DSC, GPS, floating construction, and high-output audio. The best choice depends on whether the radio will serve as the boat's primary communications system, a portable backup, or a specialized handheld for use around the deck, dinghy, or tender.

This guide focuses on Icom marine radios and accessories currently represented in the CritPro catalog, with options ranging from straightforward 6-watt handhelds to fixed-mount systems with integrated AIS vessel monitoring.

Why Choose an Icom Marine VHF Radio?

Icom's marine lineup covers both fixed and portable communication needs. A fixed-mount VHF can provide up to 25 watts of transmit power when properly installed with a suitable antenna, while handheld models trade some range for portability and independence from the boat's main electrical system.

Several Icom radios also incorporate Digital Selective Calling, commonly abbreviated DSC. DSC allows compatible radios to exchange digitally formatted calls, including distress and individual calls. For DSC features to work as intended, the radio must be properly configured with the vessel's MMSI and position information according to the radio and vessel requirements.

AIS is another useful feature available on selected Icom models. An AIS receiver can display information transmitted by nearby AIS-equipped vessels, helping the operator identify traffic and, on supported radios, select an AIS target for an individual DSC call.

Best Icom Marine VHF Radios and Accessories

Icom IC-M510 Plus Fixed Mount VHF Radio with AIS

The Icom IC-M510 Plus Fixed Mount VHF Radio with AIS is the most feature-rich choice in this group for a primary helm radio. It combines 25-watt VHF transmission, Class D DSC, an integrated AIS receiver, built-in GPS, a 3.5-inch color display, and wireless control through Icom's RS-M500 smartphone and tablet app.

The integrated AIS receiver displays nearby vessel traffic and allows an individual DSC call to be initiated from a selected AIS target. That is particularly useful in busy waterways because the operator can identify a vessel on the display rather than relying entirely on an open voice hail.

Built-in WLAN allows up to three compatible smart devices to function as wireless microphones or remote controls through the RS-M500 app. The radio also supports intercom communication between connected smart devices and the main unit, making it useful on boats where the helm is not the only place the operator needs radio access.

• 25W fixed-mount VHF radio
• Built-in AIS receiver
• Class D DSC
• Built-in GPS and WLAN
• 3.5-inch color TFT display
• Remote operation from compatible smart devices

Icom IC-M94D Handheld VHF Marine Radio with AIS/DSC

The Icom IC-M94D Handheld VHF Marine Radio with AIS/DSC packs features normally associated with fixed-mount equipment into a portable marine radio. It combines 6-watt transmit power with an integrated AIS receiver, Class H DSC, built-in GPS, and a dedicated distress function.

AIS vessel information can be viewed directly on the handheld display, and a selected target can be used to initiate an individual DSC call. That makes the M94D especially useful as a premium portable radio for offshore-capable boats, tenders, or as a backup to a fixed-mount installation.

The radio also uses Icom's Float'n Flash feature, which helps make the unit easier to locate if it is dropped overboard. Its high-output speaker delivers up to 1500 mW of audio, an advantage around running engines, wind, and other background noise.

• 6W handheld VHF
• Built-in AIS receiver
• Class H DSC
• Integrated GPS
• Float'n Flash feature
• High-output 1500 mW speaker

Icom IC-M73 Plus 6W Handheld VHF Radio with Noise Cancel

The Icom IC-M73 Plus 6W Handheld VHF Radio with Noise Cancel is designed for boaters who want a rugged handheld with an emphasis on voice clarity rather than integrated AIS or DSC. Its active noise-canceling system helps reduce wind, engine, and other background noise during transmitted and received conversations.

The M73 Plus also includes a bass-boost function and loud 700 mW audio output. Its high-visibility display is designed for outdoor use, while the slim body makes it practical for carrying on deck for extended periods.

Battery operation can reach approximately 16 hours under the manufacturer's specified duty cycle, making this a strong option for long boating days, commercial-style use, or situations where the handheld may remain away from its charger for extended periods.

• 6W transmit output
• Active noise cancellation
• 700 mW speaker output
• Bass-boost function
• Long operating time
• Designed for demanding handheld use

Icom IC-M37 6W Handheld Marine VHF Radio

The Icom IC-M37 6W Handheld Marine VHF Radio is a more straightforward portable radio for recreational boating. It provides 6-watt transmit output, a floating design, Float'n Flash recovery assistance, AquaQuake water-clearing technology, and approximately 12 hours of operation under Icom's specified duty cycle.

The large controls and easy-grip housing make the M37 practical for use with wet hands. Channel history stores recently used channels, while Dualwatch and Tri-watch functions make it easier to monitor Channel 16 while keeping track of another working channel.

This model is a good fit for boaters who want a floating handheld backup without paying for integrated AIS and DSC features that they may already have at the main helm.

• 6W transmit output
• Floating design with Float'n Flash
• AquaQuake speaker clearing
• Approximately 12 hours of operation
• Dualwatch and Tri-watch functions

Icom IC-M330 Black Ultra Compact VHF Radio

The Icom IC-M330 Black Ultra Compact VHF Radio is a compact fixed-mount option for boats where dashboard and behind-panel space are limited. The radio body is approximately 6.2 inches wide, 2.6 inches high, and 4.3 inches deep, making it easier to fit into smaller consoles than many conventional fixed-mount radios.

Class D DSC continuously monitors the dedicated DSC channel while the operator uses the radio normally. The M330 also supports NMEA connectivity for compatible external navigation or position data and can integrate with supported marine electronics.

This version is especially useful when the goal is a compact primary VHF without the AIS display, Wi-Fi controls, and other advanced features of the M510 Plus.

• Ultra-compact fixed-mount design
• Class D DSC
• NMEA connectivity
• Designed for limited helm space
• Clear audio and straightforward controls

Icom HM-202 Compact Waterproof Speaker Mic

The Icom HM-202 Compact Waterproof Speaker Mic is a useful accessory for compatible M72 and M73 handheld radios. Instead of removing the radio from a belt, jacket, or gear attachment each time a call comes in, the remote microphone places the speaker and push-to-talk control within easy reach.

An eight-position rotating clip allows the microphone to be positioned at different angles on a PFD strap, collar, or other attachment point. Its compact construction also keeps it from becoming unnecessarily bulky during active deck work.

• Compatible with Icom M72 and M73 handheld radios
• Remote speaker and push-to-talk operation
• Eight-position rotating clip
• Water-resistant construction for marine use

Icom HM-205RB Rear-Connector Speaker Microphone

The Icom HM-205RB Rear-Connector Speaker Microphone is designed for compatible fixed-mount Icom radios that use a rear microphone connection. Compatible applications include members of the IC-M510, IC-M506, and IC-M605 families.

The microphone uses an 8-pin waterproof connection and a coiled cable. A rear-connected microphone can be useful in installations where cable routing behind the helm provides a cleaner or more convenient layout than a front-mounted microphone lead.

• Rear-connected speaker microphone
• 8-pin waterproof connector
• Compatible with selected IC-M510, IC-M506, and IC-M605 radios
• Useful for alternate helm microphone routing

Icom Marine VHF Comparison

Fixed Mount vs Handheld VHF Radios

Choose a Fixed-Mount VHF for the Primary Radio

A fixed-mount VHF is normally the better choice as a boat's primary communication radio. With up to 25 watts of transmit power and a properly installed external antenna mounted above the waterline, it generally provides greater communication range than a handheld.

Fixed radios can also integrate more easily with onboard GPS, AIS, chartplotters, external speakers, and other marine electronics. Models such as the M510 Plus add AIS and wireless remote-control capabilities, while the M330 provides a simpler option when installation space is the main concern.

Browse additional Fixed Mount VHF Radios for other helm installations.

Choose a Handheld VHF for Portability and Backup

A handheld does not depend on the boat's main electrical system or permanently installed antenna. That makes it valuable during a power failure, when operating a tender, while working away from the helm, or when a portable radio is simply more convenient.

The tradeoff is range. Marine VHF communication is largely line-of-sight, so antenna height matters. A handheld antenna positioned only a few feet above the water generally cannot match a properly installed fixed-mount antenna positioned much higher on the boat.

Browse Handheld VHF Radios for additional portable options.

AIS, DSC, GPS and Other VHF Features Explained

Digital Selective Calling

DSC provides digital calling functions alongside normal VHF voice communication. On recreational Class D radios, supported functions include distress, individual, all-ships, urgency, and safety calls. Handheld radios such as the M94D may use a different DSC class designed for portable equipment.

For DSC distress features to provide their full benefit, the radio needs the correct MMSI and position information. Built-in GPS simplifies the position-data side of that setup, while other radios can obtain position data from compatible external navigation equipment.

AIS Receive

AIS receivers listen for identification and navigation information broadcast by compatible vessels. An AIS-equipped Icom radio can provide another layer of traffic awareness by showing nearby AIS targets rather than relying only on visual observation and voice calls.

A receive-only AIS radio does not automatically transmit your vessel's information. AIS transmission requires appropriate transponder equipment.

Built-In GPS

GPS allows a DSC-equipped radio to know the vessel's position without depending on an external GPS data connection. That is particularly useful during a distress call because accurate position information can be included when the system is properly configured.

Float'n Flash

Selected Icom handhelds float and activate a flashing light after entering the water. A floating radio is especially useful aboard open boats, kayaks, tenders, and other vessels where handheld equipment can easily go overboard.

AquaQuake

Icom's AquaQuake function uses low-frequency sound to help clear water from the speaker grille after the radio becomes wet. Removing trapped water helps restore clear speaker audio after spray or submersion.

How to Choose the Right Icom Marine Radio

Choose the IC-M510 Plus if You Want the Most Complete Helm Setup

The M510 Plus is the strongest choice here when AIS reception, DSC, GPS, a color display, and wireless remote control are priorities. It is particularly well suited to boats where the VHF is part of a larger navigation and communications setup.

Choose the IC-M330 if Helm Space Is Limited

The M330 gives up the integrated AIS display and wireless features of the M510 Plus in exchange for a much simpler, compact installation. It is a good option for center consoles and smaller helm stations where behind-dash depth is limited.

Choose the IC-M94D for a Feature-Rich Handheld

The M94D stands apart because it includes AIS reception, DSC, GPS, and floating capability in a portable radio. It can serve as a sophisticated backup to a fixed installation or as a primary portable communication tool where those features are useful.

Choose the IC-M73 Plus for Noisy Conditions

Active noise cancellation makes the M73 Plus particularly useful around engines, wind, commercial activity, or other situations where background noise makes communication difficult. It is a communication-focused handheld rather than an AIS navigation tool.

Choose the IC-M37 for a Straightforward Floating Backup

The M37 is well suited to recreational boaters who want a portable 6-watt VHF with floating recovery features and simple operation. It provides the core handheld features without the more specialized AIS and DSC equipment found in the M94D.

Frequently Asked Questions

Is a fixed-mount VHF better than a handheld?

A fixed-mount VHF is generally preferable as the primary radio because it can transmit at higher power and use an antenna mounted higher above the water. A handheld is valuable as a portable or independent backup and for use away from the helm.

Which Icom handheld has AIS?

The IC-M94D includes a built-in AIS receiver along with GPS and DSC. It can display nearby AIS targets and support individual DSC calls to selected targets.

Does the Icom M510 Plus transmit AIS?

The model covered here includes an AIS receiver. Receiving AIS lets the radio display information from transmitting vessels, but an AIS receiver by itself does not broadcast your own vessel's position or identity.

Do I need an MMSI for DSC?

An MMSI identifies the vessel or radio within the DSC system and is required to use the DSC identification and distress features properly. The MMSI must be entered and registered according to the applicable requirements for the vessel and where it operates.

Does a VHF radio work farther than a cell phone?

VHF and cellular systems work differently, so neither has a universal range advantage. Marine VHF is designed for vessel-to-vessel and vessel-to-shore communications and does not depend on nearby cellular towers, making it an essential marine communication system even where cellular service is available.

What affects marine VHF range?

Antenna height is one of the most important factors because VHF communication is largely line-of-sight. Antenna quality, cable condition, installation, transmit power, surrounding terrain, vessel height, and the receiving station's antenna height also affect practical range.

Should I carry a handheld if my boat already has a fixed VHF?

A handheld can provide useful redundancy if the boat loses electrical power or the fixed radio becomes unavailable. It is also convenient for a tender, dinghy, kayak, or crew member working away from the primary helm.

Final Thoughts

Icom's marine lineup covers very different communication needs rather than offering one radio that is ideal for every boat. The IC-M510 Plus is the strongest choice in this group for a feature-rich primary helm installation, while the IC-M330 fits boats that need a compact fixed radio without the same level of integrated electronics.

Among handhelds, the IC-M94D stands out for combining AIS, DSC, GPS, and portable operation. The IC-M73 Plus emphasizes clear communication in noisy environments, while the IC-M37 gives recreational boaters a simpler floating handheld that works well as a portable backup.

Whichever radio you choose, proper installation and configuration are just as important as the hardware. Fixed radios need a correctly installed marine VHF antenna and coaxial cable, while DSC-equipped radios should be configured with the appropriate MMSI and position source so their digital safety functions can work as intended.

Browse Marine Electronics and Communication Accessories at CritPro.