Standard Horizon GX1850 Explorer Fixed Mount VHF Radio - 25W, NMEA 2000, Second Station Capable

Ultra-Compact Explorer Series VHF with NMEA 2000 and Second Station Capability - FREE SHIPPING!

The Standard Horizon GX1850 Explorer Series represents the perfect solution for boaters with existing marine electronics networks seeking professional VHF communication with seamless integration. This 25-watt fixed mount VHF radio features plug-and-play NMEA 2000 connectivity to receive GPS data from your chartplotter or external GPS, eliminating redundant GPS receivers. With an ultra-slim rear case depth of just 3.3 inches—half the depth of comparable radios—the GX1850 fits easily in tight helm spaces where standard radios won't. The large full dot matrix display shows GPS coordinates, compass heading, waypoints, and comprehensive DSC information received from your NMEA 2000 network. Class D DSC meets ITU-R M.493-13 standards with a dedicated Channel 70 receiver for continuous DSC monitoring. Second station capability with optional RAM4 remote microphone provides multi-location control with intercom functionality. E2O Easy to Operate menu system, selectable night mode display, IPX8 submersible waterproof construction, and ClearVoice noise canceling technology deliver professional performance. Available in classic Black or clean White finish to match your vessel, backed by Standard Horizon's exceptional 3-year waterproof warranty. Plus, enjoy FREE SHIPPING on your order—professional marine communication with NMEA 2000 integration delivered to your door at no extra cost!

Key Features

• NMEA 2000 Compatible - No Built-in GPS: Unlike the GX1850GPS model, the GX1850 does NOT have a built-in GPS receiver. Instead, it features plug-and-play NMEA 2000 connectivity to receive GPS data from your existing chartplotter or external GPS receiver. This eliminates GPS redundancy if you already have GPS on your network, reduces cost, and streamlines your electronics system. Simply connect to your NMEA 2000 backbone and the radio automatically displays GPS position, compass data, waypoints, and navigation information from your network.
• Ultra-Slim 3.3" Rear Case Depth: Revolutionary space-saving design with rear case depth of only 3.3 inches—half the depth of comparable VHF radios. This ultra-compact footprint allows installation in tight helm spaces, shallow console areas, and small cuddy cabins where standard radios simply won't fit. Despite the slim profile, the GX1850 delivers full 25-watt transmit power and complete functionality.
• Seamless NMEA 2000 Integration: Easy plug-and-play connectivity to the NMEA 2000 data bus provides instant access to GPS position data from your chartplotter or GPS receiver. The single plug-in interface allows the radio to receive GPS coordinates for DSC calling and easily send DSC information including position sharing data and distress alerts directly to your chartplotter's display. No complex wiring or configuration—just plug in and it works.
• GPS Compass and Waypoint Navigation: When connected to a GPS via NMEA 2000 or NMEA 0183, the GX1850 displays GPS compass screen, waypoint navigation, and GPS status pages. Enter, save, and navigate to waypoints using the intuitive compass page. Navigation data including latitude/longitude, speed over ground (SOG), and course over ground (COG) appear on the large display for comprehensive situational awareness.
• Class D DSC with Separate CH70 Receiver: Meets the latest ITU-R M.493-13 Class D DSC standards for maritime safety. The dedicated Channel 70 receiver operates continuously, allowing you to receive DSC calls even while listening to voice communications on other channels. One-button DISTRESS function transmits a digital MAYDAY including your vessel identification and GPS coordinates from your connected GPS.
• Second Station Capability with Optional RAM4: Compatible with Standard Horizon's wired RAM4 remote access microphone (model SSM-70H, sold separately). Connect a RAM4 at a remote location up to 23 feet away for complete radio and DSC control including all radio functions, DSC functions, and intercom features between the main station and remote station. Perfect for flybridge or cockpit control.
• Group Monitor (GM) Using DSC: The GM (Group Monitor) feature utilizes DSC Group position calling and auto position polling to display group member locations. Navigate to specific group members using the GM function. Store up to 10 groups with multiple members each for comprehensive fleet coordination.
• MOB (Man Overboard) Operation: In emergency situations, instantly mark and store the exact GPS location where a person fell overboard (when connected to GPS). The MOB function automatically records coordinates and can display bearing and distance information for rapid response and recovery.
• Large Full Dot Matrix Display: High-resolution LCD screen provides exceptional readability showing GPS coordinates (from network), compass heading, waypoints, channel information, DSC messages, and navigation data with crystal clarity. Adjustable backlight with selectable night mode optimizes visibility for both daytime and nighttime operations.
• Selectable Night Mode Display: The display can be set to toggle between DAY mode and NIGHT mode. In NIGHT mode, the display inverts colors (black background with white text) to reduce glare and preserve night vision during nighttime operations. Thoughtful feature for serious boaters.
• IPX8 Submersible Waterproof: Engineered to survive submersion to 5 feet (1.5 meters) for 30 minutes, exceeding typical IPX7 standards. This rugged waterproof construction provides maximum protection during rough weather, heavy spray, or accidental immersion.
• E2O Easy to Operate Menu System: Redesigned with the everyday boat operator in mind, the intuitive E2O icon and menu system provides simple access to all functions including GPS display (from network), compass screen, waypoint management, DSC programming, and radio settings. Large softkeys and logical menu structure reduce learning curve.
• ClearVoice Noise Canceling Microphone: Advanced noise canceling technology in the microphone eliminates background noise during transmission. Wind, engine noise, and other interference are filtered out, ensuring your voice comes through clearly. The microphone includes channel change selection, 16/S button for instant Channel 16 access, and H/L power selection.
• Automatic DSC Position Polling: Automatically poll the GPS position of up to 6 vessels using DSC position requests. Monitor the location of your fleet, fishing partners, or cruising companions without voice communication. Positions are received via DSC and displayed using GPS data from your network.
• Versatile Scanning Functions: Programmable scan, priority scan, and multi watch modes keep you informed of activity across multiple channels. Priority scan monitors important channels more frequently. Multi watch allows monitoring of multiple channels simultaneously.
• 10 Favorite Channel Preset: Preset key stores up to 10 frequently used channels for instant recall. Quick access to your marina channel, fishing fleet channel, bridge channels, or commonly monitored frequencies improves communication efficiency.
• NOAA Weather Alert: All 10 NOAA weather radio channels with automatic Weather Alert functionality. The radio monitors weather channels for severe weather warnings and activates an audible alarm when the National Weather Service broadcasts emergency information.
• NMEA 0183 Connectivity: In addition to NMEA 2000, the GX1850 includes NMEA 0183 input/output for compatibility with legacy GPS equipment. Connect to older chartplotters or GPS receivers that don't have NMEA 2000 for GPS data reception and DSC data transmission.

Technical Specifications

• Frequency Range: TX 156.025-161.600MHz / RX 156.050-163.275MHz
• Channels: All USA, International, and Canadian marine channels
• Power Output: 25W / 1W selectable (High/Low)
• GPS Receiver: NOT included—receives GPS data via NMEA 2000 or NMEA 0183
• DSC: Class D DSC (ITU-R M.493-13 compliant)
• DSC Receiver: Dedicated separate Channel 70 receiver
• NMEA Compatibility: NMEA 2000 and NMEA 0183 input/output
• Display: Full dot matrix LCD
• Display Modes: DAY mode and NIGHT mode (selectable)
• Compass Screen: GPS compass with waypoint navigation (when connected to GPS)
• Waypoint Functions: Enter, save, and navigate to waypoints (when connected to GPS)
• Navigation Display: LAT/LON, SOG, COG information (when connected to GPS)
• Group Monitor: Up to 10 groups for fleet coordination
• MOB Function: Man overboard position marking (when connected to GPS)
• Second Station: Optional RAM4 remote microphone capable (SSM-70H)
• Waterproof Rating: IPX8 (submersible to 5 ft / 1.5m for 30 minutes)
• Preset Channels: 10 favorite channel memory
• Position Polling: Up to 6 vessels via DSC
• Scanning: Programmable scan, priority scan, multi watch
• Weather Channels: All 10 NOAA weather channels (USA version)
• Weather Alert: Automatic severe weather warning notification
• Operating Voltage: 13.8 VDC ±20%
• Current Consumption: 0.45A Standby / 0.8A RX / 1.0A TX (1W) / 5.0A TX (25W)
• Antenna Impedance: 50 Ohm
• Dimensions (W x H x D): 5.9" x 3.7" x 3.3" (150 x 95 x 82mm)
• Rear Case Depth: Ultra-slim 3.3" (82mm)—half typical depth
• Weight: Approximately 2.1 lbs (940g)
• Operating Temperature: -4°F to +140°F (-20°C to +60°C)
• Available Colors: Black or White
• Country of Origin: China
• Warranty: 3-year waterproof warranty
• Certifications: FCC Part 80, Industry Canada, USCG approved

IMPORTANT: GPS Not Included

The GX1850 does NOT have a built-in GPS receiver. This model is designed for boaters who already have a chartplotter, MFD, or external GPS receiver with NMEA 2000 or NMEA 0183 output. The radio receives GPS position data from your existing GPS equipment via the NMEA connection. This eliminates GPS redundancy, reduces cost, and is ideal if you already have GPS on your boat. If you need a radio with built-in GPS, consider the GX1850GPS model which includes an internal 66-channel GPS receiver. The GX1850 (this model) requires connection to an external GPS source for DSC position data, compass display, waypoint navigation, and MOB functions to work properly.

Ultra-Slim Design Advantages

The GX1850's breakthrough ultra-slim 3.3-inch rear case depth represents a 50% reduction compared to standard VHF radios. This space-saving design opens up installation possibilities in tight helm areas where conventional radios won't fit. Center console boats with shallow dash depths, small cuddy cabins with limited panel space, and sailboats with compact nav stations all benefit from the slim profile. The reduced depth also provides installation flexibility—bracket mount the radio on shallower surfaces or flush mount in areas with limited depth behind the panel. Despite the compact rear case, Standard Horizon engineers maintained a large front panel display and full-featured controls, ensuring excellent usability.

NMEA 2000 Integration Benefits

The GX1850's plug-and-play NMEA 2000 connectivity transforms it into a fully integrated component of your marine electronics network. Simply connect to your existing NMEA 2000 backbone with a T-connector and drop cable—the radio automatically joins the network. Your chartplotter's GPS data flows to the GX1850 for DSC calling, compass display, and waypoint navigation. DSC information from the GX1850 appears on your chartplotter screen, showing incoming DSC calls, position reports, and distress alerts with vessel identification and coordinates. This seamless bidirectional data exchange creates a cohesive marine electronics system where all components work together. No redundant GPS receivers, no complex wiring diagrams, no configuration hassles—just plug-and-play integration.

Waypoint Navigation and GPS Compass

When connected to a GPS via NMEA 2000 or NMEA 0183, the GX1850 provides comprehensive navigation features typically found only on dedicated GPS units. The GPS compass screen displays your heading with intuitive graphical presentation. Enter and save waypoints for favorite fishing spots, marina entrances, or anchorages, then navigate to them using the compass display showing bearing, distance, and direction. The display shows latitude/longitude coordinates, speed over ground (SOG), and course over ground (COG) derived from your connected GPS. This integrated navigation capability makes the GX1850 more than just a communication radio—it's a valuable secondary navigation display showing GPS data from your network.

Second Station and Intercom Capability

The GX1850 supports the optional RAM4 wired remote access microphone (model SSM-70H) for professional multi-station installations. Connect a RAM4 up to 23 feet away using the included cable for complete radio and DSC control at a remote location such as flybridge, cockpit, or engine room. The RAM4 provides full functionality including channel selection, scanning, DSC calling, and all radio functions. The built-in intercom feature allows private communication between the main station and RAM4 without broadcasting over external speakers—invaluable for coordinating operations between different areas of your vessel. This second station capability is rare in compact radios and makes the GX1850 suitable for larger vessels requiring multiple control points.

Group Monitor for Fleet Coordination

The Group Monitor (GM) feature transforms the GX1850 into a comprehensive fleet management tool. Store up to 10 groups of vessels for organized fleet coordination. The GM function uses DSC Group position calling and automatic position polling to request and display group member locations. Navigate to specific group members using the GM navigation function. Auto position polling automatically requests position updates from group members at configurable intervals, providing real-time fleet situational awareness without tying up voice channels. Perfect for fishing fleets, cruising rallies, charter operations, or any coordinated boating activities.

MOB (Man Overboard) Operation

The dedicated MOB function provides instant position marking in life-threatening man overboard situations. When connected to a GPS, press the MOB button to immediately record the exact coordinates where someone fell overboard. The radio displays bearing and distance back to the MOB location, providing critical navigation information for rapid response. Every second counts in man overboard situations—the GX1850's instant MOB marking and navigation could save lives. This essential safety feature operates using GPS data from your NMEA network.

Compatibility

The GX1850 is compatible with all NMEA 2000 networks and devices including Garmin, Raymarine, Furuno, Simrad, B&G, and Lowrance chartplotters. NMEA 0183 input/output ensures compatibility with legacy GPS equipment. The optional RAM4 wired remote access microphone (SSM-70H) provides second station capability. External speakers including MLS-300 and MLS-310 offer additional audio output. The radio requires a 50-ohm VHF marine antenna (sold separately) for operation. The compact mounting bracket (included) accommodates installation on flat or angled surfaces. Optional MMB-97 flush mount kit available separately.

What's Included

• Standard Horizon GX1850 Explorer VHF radio main unit (your choice of Black or White)
• ClearVoice noise-canceling command microphone with channel controls and coiled cord
• Mounting bracket with hardware
• DC power cable with inline fuse
• Mounting template
• Owner's manual with installation and programming instructions
• Warranty registration information

Why Buy From Us? Maximum Value with FREE SHIPPING!

FREE SHIPPING: We deliver your Standard Horizon GX1850 Explorer VHF radio with NMEA 2000 connectivity at absolutely no shipping cost to you. This ultra-compact communication system ships safely and quickly to your location—no minimum order required, no hidden fees. Save on standard carrier rates while equipping your vessel with a space-saving radio that integrates seamlessly with your existing marine electronics. Combined with Standard Horizon's exceptional 3-year waterproof warranty and our commitment to customer service, you're getting outstanding value on this feature-rich Explorer radio. Free shipping makes upgrading to NMEA 2000-compatible communication more affordable than ever.

Ideal For

The Standard Horizon GX1850 Explorer is perfect for boaters who already have a chartplotter, MFD, or external GPS and want to add professional VHF communication without GPS redundancy. Ideal for vessels with existing NMEA 2000 networks seeking seamless integration. Perfect for boats with tight helm spaces where the ultra-slim 3.3" depth allows installation where standard radios won't fit. Center console boats, sailboats with compact nav stations, and small cuddy cabins benefit from the space-saving design. Anglers, cruisers, and sailors who want comprehensive navigation features (compass, waypoints, MOB) displayed on their VHF when connected to their chartplotter will appreciate the integrated functionality. Cost-conscious boaters who don't need a built-in GPS because they already have GPS equipment save money with this model. Anyone seeking second station capability for flybridge or cockpit control with intercom functionality will value the RAM4 compatibility. The IPX8 submersible rating provides confidence for open cockpit boats and exposed helm stations.

GX1850 vs GX1850GPS: Which Should You Choose?

The GX1850 does NOT have a built-in GPS receiver and must be connected to an external GPS via NMEA 2000 or NMEA 0183 for DSC position data and navigation features. The GX1850GPS adds a built-in 66-channel WAAS GPS receiver. If you already have a chartplotter or external GPS with NMEA output, the GX1850 (this model) saves money by eliminating GPS redundancy. If you don't have a chartplotter or want standalone GPS for DSC, choose the GX1850GPS with built-in GPS. The GX1850 is ideal for integrated installations where you already have GPS equipment. The GX1850GPS is better for standalone installations without existing GPS.

Color Options

Choose between classic Black or clean White finish to complement your vessel's helm design. Both colors feature identical specifications, warranty, performance, and NMEA 2000 connectivity. Black models blend with dark consoles, carbon fiber accents, and contemporary styling. White models match traditional marine aesthetics, white helm stations, and light-colored interiors. The choice is purely aesthetic—select the finish that coordinates with your vessel's appearance.

About Standard Horizon

Standard Horizon, a division of Yaesu Musen Co., Ltd., has been the global leader in marine communication technology for over 60 years. The Explorer Series showcases Standard Horizon's ability to pack professional features into ultra-compact, space-saving designs without compromising performance or reliability. Every Standard Horizon radio is backed by an industry-leading 3-year waterproof warranty, demonstrating the company's confidence in their engineering. When boaters worldwide need reliable marine communication with seamless electronics integration, they choose Standard Horizon—because "Nothing takes to water like Standard Horizon."