Icom M330G Fixed Mount VHF Radio - 25W, Built-in GPS, Class D DSC, AquaQuake, IPX7, Black

Ultra-Compact 25W VHF Radio with Built-in GPS Receiver for Enhanced Safety and Navigation

The Icom M330G fixed mount VHF marine radio delivers professional 25-watt performance with an integrated GPS receiver in an ultra-compact body that fits where other radios can't. At just 6.2 inches wide, this Class D DSC-equipped transceiver includes a supplied external GPS antenna and provides automatic position transmission for distress calls and navigation data display. Made in Japan with rigorous quality testing, the M330G features AquaQuake™ water draining technology, class-leading receiver performance (70+ dB selectivity and IMD), and IPX7 submersible construction. Perfect for boats where space is at a premium but professional communication capability with integrated GPS is essential for safety and compliance.

Key Features

• Built-in GPS Receiver with Supplied Antenna: Integrated GPS receiver uses signals from GPS, GLONASS, and SBAS satellite systems for accurate position, bearing, and speed information. Includes a 5-meter (16.4 ft) external GPS antenna with cable for optimal satellite reception. Position data is automatically transmitted with DSC distress calls and displayed on screen.
• Ultra-Compact Design: Measuring only 156.5 × 66.5 × 110.1 mm (6.2 × 2.6 × 4.3 inches), the M330G is one of the smallest fixed mount VHF radios with built-in GPS available. Installs easily in tight spaces on center consoles, small helm stations, and compact dashboards without sacrificing any features or power output.
• Class D DSC with GPS Position Integration: Built-in Digital Selective Calling meets ITU-R M.493-14 standards and continuously monitors Channel 70 even while receiving another channel. The integrated GPS automatically includes your exact position in distress calls, dramatically improving rescue response times. Also supports individual, group, all ships, urgency, safety, position request/report, polling request, and DSC test calls with position data.
• Class-Leading Receiver Performance: Delivers reliable communication in RF-congested environments like marinas and busy harbors. Superior selectivity and intermodulation (IMD) performance of more than 70 dB ensures clear reception even with multiple nearby transmitters operating simultaneously.
• AquaQuake™ Draining Function: Icom's innovative water draining technology uses speaker vibration to clear water from the speaker grille, preventing audio degradation after spray or rain exposure. Maintains clear, distortion-free audio output even in wet conditions.
• Real-Time GPS Navigation Display: Full dot-matrix display shows latitude, longitude, speed over ground (SOG), course over ground (COG), and UTC time. Track your position and navigation data directly on the VHF display without needing a separate GPS device or chartplotter.
• New High-Performance Speaker: Redesigned speaker delivers dynamic, crystal-clear audio across a wide bass and treble range. Produces distortion-free sound even at maximum volume with 4.5W audio output power. Essential for noisy engine rooms and outdoor helm stations.
• IPX7 Submersible Construction: Waterproof to 1 meter depth for 30 minutes. Protects against heavy spray, rain, and accidental water exposure. Designed for harsh marine environments with sealed construction and corrosion-resistant materials.
• Intuitive Icom Marine User Interface: Combination of directional keypad and programmable soft keys provides simple, smooth operation. Most-used functions are assigned to soft keys for quick one-push access. Full dot-matrix display shows channel, GPS position, DSC status, and settings clearly.
• Made in Japan Quality: Manufactured at Icom's Wakayama plant with rigorous in-house testing and environmental testing before shipping. Icom's legendary reliability and build quality ensures years of dependable service in demanding marine conditions.
• Complete Channel Coverage: All USA, International, and Canadian marine channels plus NOAA weather channels with weather alert capability. Automatically scans weather channels and alerts you to emergency broadcasts.
• Advanced Scanning Functions: Dual/tri-watch monitors CH16 and/or your call channel while operating on another frequency. Tag scan and favorite channel functions let you create custom scan lists. Priority scan monitors critical channels.

Technical Specifications

• Frequency Range: Tx: 156.025–161.600 MHz / Rx: 156.050–163.275 MHz / DSC CH70: 156.525 MHz
• Channels: All USA, International, and Canadian marine channels plus NOAA weather channels
• Power Output: 25W High / 1W Low
• Type of Emission: 16K0G3E (FM voice), 16K0G2B (DSC)
• GPS Receiver: Built-in, supports GPS, GLONASS, and SBAS satellite systems
• GPS Antenna: External antenna supplied (5m / 16.4 ft cable)
• Position Display: Latitude, longitude, SOG, COG, UTC time
• Waterproof Rating: IPX7 (submersible to 1m depth for 30 minutes)
• Receiver Sensitivity: Main: -13 dBµ typ (12 dB SINAD) / DSC: -5 dBµ emf typ (1% BER)
• Adjacent Channel Selectivity: More than 70 dB (Main) / More than 73 dBµ emf (DSC)
• Intermodulation: More than 70 dB (Main) / More than 68 dBµ emf (DSC)
• Audio Output: 4.5W typical at 10% distortion with 4Ω load
• Dimensions (W × H × D): 156.5 × 66.5 × 110.1 mm (6.2 × 2.6 × 4.3 inches) - projections not included
• Weight: Approximately 730g (1.6 lb)
• Power Supply: 13.8V DC nominal (11.7–15.9V DC operating range)
• Current Draw: Tx 25W: 5A / Rx Maximum Audio: 1A (at 13.8V DC)
• Operating Temperature: -20°C to +60°C (-4°F to +140°F)
• Antenna Impedance: 50Ω (SO-239 connector) for VHF antenna
• NMEA Formats: Input: RMC, GGA, GNS, GLL, VTG / Output: DSC, DSE, RMC, GSA, GSV
• Certifications: FCC Part 80, Industry Canada, ITU-R M.493-14 (DSC), IPX7 waterproof standard

DSC & GPS-Enhanced Safety Capabilities

The M330G features full Class D Digital Selective Calling with a dedicated Channel 70 receiver that continuously monitors for distress and other DSC calls even while you're communicating on another channel. The dedicated DSC receiver meets ITU-R M.493-14 standards for reliability. The integrated GPS receiver is the key safety advantage - your exact position is automatically transmitted with every distress call, allowing rescue services to locate you immediately without any manual input required. Program your MMSI number once and gain instant access to one-button GPS-enabled distress calling, individual calling to other DSC-equipped vessels with position sharing, group calling, all ships calling, urgency and safety announcements, position request and report functions, polling request, and DSC test calls. The M330G can also receive and display positions from other vessels' DSC calls. The DSC log stores received calls with position data for later review. A large red DISTRESS button on the front panel provides immediate emergency access.

GPS Navigation Features

The built-in GPS receiver provides continuous position, navigation, and time information displayed on the full dot-matrix screen. View your latitude and longitude coordinates, speed over ground (SOG), course over ground (COG), and UTC time at a glance. The supplied external GPS antenna with 5-meter cable allows flexible mounting on a cabin top, t-top, hardtop, or other location with clear sky view for optimal satellite reception. The GPS receiver acquires signals from GPS, GLONASS, and SBAS satellite systems for faster acquisition and improved accuracy. Position data is also output via NMEA 0183 to chartplotters and other navigation equipment, allowing the M330G to serve as a GPS source for your entire electronics system. The GPS-derived position information is essential for DSC distress calling and position reporting, making the M330G a complete safety and communication solution.

Icom Advanced Technologies

• AquaQuake™ Water Draining: Exclusive Icom technology vibrates the speaker to forcefully expel water from the speaker grille after exposure to spray or rain. Prevents muffled audio and maintains clear communication quality in wet conditions. Simply press the AquaQuake button and water is expelled in seconds.
• Integrated GPS/DSC System: The built-in GPS receiver seamlessly integrates with the Class D DSC system, automatically including your position in distress calls and position reports. No manual position entry required - the system handles everything automatically for enhanced safety and ease of use.
• Intuitive Marine User Interface: Icom's purpose-built marine interface combines a 4-direction keypad with context-sensitive soft keys that change function based on the current operation. Most frequently used features are always one button press away. The full dot-matrix amber display shows channel number, GPS position, transmit/receive status, DSC information, scan status, and settings simultaneously.
• Class-Leading RF Performance: Advanced receiver circuitry delivers superior selectivity and intermodulation performance exceeding 70 dB. This means reliable, clear communication even in crowded RF environments like busy marinas where multiple radios are transmitting simultaneously. Reduces interference and improves reception of weak signals.

Connectivity & Integration

The M330G features comprehensive NMEA 0183 input/output for integration with marine electronics. The GPS receiver can output position data to chartplotters, autopilots, and other NMEA-compatible devices, serving as a GPS source for your entire boat. You can also connect an external GPS receiver if desired. The NMEA output provides GPS position data, DSC call information, and navigation information to chartplotters and multifunction displays. An external speaker jack allows connection of the SP-37 or other 4-8Ω marine speakers for improved audio in noisy environments or when the radio is mounted in a location where the built-in speaker is difficult to hear. The supplied HM-235B hand microphone includes channel up/down keys and a quick-access CH16/Call channel button for convenient operation.

What's Included

• Icom M330G VHF marine transceiver with built-in GPS (black)
• External GPS antenna with 5m (16.4 ft) cable
• HM-235B hand microphone with coiled cord
• DC power cable with in-line fuse holder
• Mounting bracket kit with hardware
• Owner's manual and documentation
• Icom 3-year warranty

Ideal For

The M330G is perfect for boaters who need full-featured VHF communication with integrated GPS in a compact package. Ideal for center console boats, small cruisers, fishing boats, sailboats with limited helm space, and any vessel where console space is at a premium but GPS-enabled DSC distress calling is essential for safety. Particularly valuable for offshore fishing, coastal cruising, and vessels operating beyond VHF range of shore where accurate position transmission in emergencies is critical. Popular with safety-conscious recreational boaters, fishermen, and small commercial operators who want the peace of mind that comes with automatic GPS position transmission in distress situations. The built-in GPS eliminates the need for a separate GPS antenna and receiver, simplifying installation and reducing equipment costs.

Optional Accessories

Enhance your M330G with genuine Icom accessories: MBF-5 flush mount kit for clean, recessed installation; SP-37 external speaker for improved audio output; MA-500TR Class B AIS transponder for vessel tracking and collision avoidance (fully compatible and integrates via NMEA); additional HM-235B/W microphones for dual-station installation. All Icom accessories are designed specifically for marine use with corrosion-resistant materials and waterproof construction.

About Icom

Icom Incorporated has been a global leader in marine communication since 1954. With over 70 years of innovation in radio technology, Icom is renowned for engineering excellence, rugged reliability, and cutting-edge features like AquaQuake™ water draining and integrated GPS/DSC systems. Trusted by recreational boaters, professional mariners, coast guards, and marine industries worldwide, Icom radios are built to perform in the most demanding conditions. Every Icom marine radio is manufactured in Japan at the company's Wakayama plant and undergoes rigorous quality and environmental testing before shipping.