Standard Horizon GX6000 Quantum Fixed Mount VHF Radio - 25W, AIS Receiver, NMEA 2000, GPS, DSC

Commercial-Grade 25W VHF Radio with Integrated AIS Receiver and NMEA 2000 - FREE SHIPPING!

The Standard Horizon GX6000 Quantum represents the benchmark in professional marine communication systems. This commercial-grade 25-watt fixed mount VHF radio integrates an AIS receiver, NMEA 2000 connectivity, built-in GPS, Class D DSC, 25-watt loud hailer with foghorn signals, and 32-code voice scrambler in one powerful unit. Designed for commercial vessels, charter boats, yachts, and serious recreational boaters, the GX6000 delivers advanced situational awareness through its large display showing AIS targets, GPS coordinates, and comprehensive DSC information. With support for up to four wireless RAM4W remote microphones, dual-zone loud hailer capability, and plug-and-play NMEA 2000 integration, the Quantum GX6000 is the ultimate communication hub for any vessel. Order today and enjoy FREE SHIPPING—professional marine electronics delivered to your dock at no extra cost!

Key Features

• Integrated Class B AIS Receiver: Built-in dual-channel AIS receiver displays real-time target information including MMSI, call sign, ship name, bearing, distance, speed over ground (SOG), and course over ground (COG) on the large front panel display. Contact AIS-equipped vessels directly using DSC, monitor your position relative to other vessels, and receive collision avoidance alerts through programmable CPA (Closest Point of Approach) and TCPA (Time to Closest Point of Approach) alarms. Requires separate dedicated AIS antenna.
• 25-Watt Transmit Power: Maximum legal power output for marine VHF ensures reliable long-range communication in all conditions. Commercial-grade 80dB receiver with local/distance attenuator provides exceptional sensitivity and selectivity for clear reception even in crowded harbors or areas with strong signal interference.
• Plug-and-Play NMEA 2000 and NMEA 0183: Seamlessly integrates with existing marine electronics networks. NMEA 2000 interface supports all PGN's (Parameter Group Numbers) for navigation, GPS, AIS, and DSC functions. Simply connect to your NMEA 2000 backbone to share GPS data with chartplotters, autopilots, and other networked devices. NMEA 0183 output provides compatibility with legacy equipment.
• Wireless RAM4W Remote Microphone Capability: Connect up to four wireless RAM4W remote access microphones using the SCU-30 wireless access point (sold separately). Operating range up to 65 feet allows full radio control from anywhere on your vessel including all DSC calling, position polling, and group calling functions. RAM4W units also function as intercoms between stations for crew communication without broadcasting externally.
• Large Easy-to-Read Display: Oversized LCD screen with intuitive menu interface displays channel information, GPS coordinates, AIS targets, DSC messages, and navigation data with exceptional clarity. Large rotary channel selector knob with push-to-enter functionality provides quick access to all features and settings. Display remains visible in bright sunlight and offers excellent readability at night.
• Integrated 25W Dual-Zone Loud Hailer: Built-in PA system with dual speaker outputs (forward and aft) delivers powerful voice communication and automated foghorn signals. Includes preprogrammed fog signals, bells, and whistles for regulatory compliance. Listen-back capability allows you to monitor audio from PA horn speakers. Radio continues monitoring last selected VHF channel and displaying AIS information even while in PA or fog mode.
• Built-in GPS Receiver: High-performance 66-channel GPS receiver provides accurate position data for DSC distress calling, position reporting, waypoint navigation, and AIS target tracking. GPS compass function displays heading information. Position logger records GPS tracks for voyage tracking and review.
• Class D DSC (Digital Selective Calling): Full-featured DSC operation enables one-button distress alerting with automatic GPS position transmission, individual calling, group calling, all ships calling, position polling, and position reporting. Store up to 100 DSC identities in individual directory and 50 groups in group directory. CH70 DSC receiver monitors continuously while on voice channels.
• Integrated 32-Code Voice Scrambler: Internal FVP-42 compatible 32-code voice scrambler provides private communications on selected channels. Compatible with all Standard Horizon 4-code (CVS2500A) scramblers for secure fleet coordination. Simply select a channel to scramble and choose a common code between transmitting and receiving radios for encrypted conversations.
• Integrated Voice Recorder: Records and plays back up to two minutes of received audio. Useful for reviewing important radio traffic, confirming instructions, or capturing critical safety information during busy operations.
• Dual and Triple Watch Scanning: Automatically monitors priority channels while listening to your working channel. Dual watch monitors Channel 16 plus your selected channel, while triple watch adds a third channel. Ensures you never miss important safety calls or hails while working on other channels.
• Front or Rear Panel Microphone Connection: Front panel microphone can be relocated to rear panel and extended up to 20 feet using the optional MEK-4 microphone extension kit. Allows flexible installation with microphone positioned at helm while main unit mounts in electronics bay or console.
• Multiple Remote Station Options: Connect two optional wired RAM4 remote microphones or up to four wireless RAM4W units for multi-station control and intercom capability. Perfect for large vessels requiring bridge, flybridge, cockpit, and engine room stations with full radio and DSC functionality at each location.

Technical Specifications

• Frequency Range: TX 156.025-161.600MHz / RX 156.050-163.425MHz
• Channels: All USA, International, and Canadian marine channels
• Power Output: 25W / 1W selectable (High/Low)
• Receiver Type: Double-conversion superheterodyne, commercial grade 80dB
• Receiver Sensitivity: 0.35µV for 12dB SINAD (typical)
• AIS Receiver: Integrated dual-channel Class B AIS receiver
• AIS Display: MMSI, call sign, ship name, bearing, distance, SOG, COG
• CPA/TCPA Alarms: Programmable collision avoidance alerts
• GPS Receiver: 66-channel high-sensitivity receiver
• DSC: Class D DSC (ITU-R M.493-13)
• NMEA Compatibility: NMEA 2000 and NMEA 0183
• Voice Scrambler: 32-code (FVP-42 compatible) + 4-code (CVS2500A compatible)
• Voice Recorder: Up to 2 minutes RX audio playback
• PA Output: 25W dual-zone (forward and aft)
• Foghorn Signals: Preprogrammed COLREGs-compliant patterns
• Remote Capability: 2x RAM4 wired or 4x RAM4W wireless (with SCU-30)
• Operating Voltage: 13.8 VDC ±20% (11.1-16.6 VDC)
• Current Consumption: 5.5A TX (25W) / 0.5A RX / 0.4A Standby
• Antenna Impedance: 50 Ohm
• Dimensions (W x H x D): 7.1" x 4.3" x 6.9" (180 x 110 x 175mm) without bracket
• Mounting: Bracket mount (included) or optional MMB-84 flush mount
• Display: Large LCD with adjustable backlight
• Operating Temperature: -4°F to +140°F (-20°C to +60°C)
• Waterproof Rating: IPX7 (withstands 1 meter submersion for 30 minutes)
• Country of Origin: Japan
• Warranty: Standard Horizon 3-year waterproof warranty
• Certifications: FCC Part 80, Industry Canada, USCG approved

AIS Receiver Capabilities

The integrated dual-channel AIS receiver transforms the GX6000 into a comprehensive collision avoidance and situational awareness system. View detailed information for AIS-equipped vessels including their MMSI number, call sign, vessel name, bearing, distance, speed, and course directly on the large front panel display. The programmable CPA and TCPA alarms provide audible and visual warnings when AIS targets approach within your defined safety zones, giving you critical time to take evasive action or establish radio contact. Contact AIS-equipped vessels directly using DSC individual calling without manually entering their MMSI—simply select the target from the AIS list and initiate a DSC call. The GX6000 displays your vessel's position relative to AIS targets and continuously calculates closest point of approach, making it an invaluable safety tool for navigation in busy shipping lanes, fog, or restricted visibility. AIS functionality requires a separate dedicated AIS antenna for optimal dual-channel reception.

NMEA 2000 and NMEA 0183 Integration

The GX6000's plug-and-play NMEA 2000 connectivity makes installation and integration effortless. The radio supports all required Parameter Group Numbers (PGNs) for navigation data, GPS information, AIS targets, and DSC messages. Simply connect the GX6000 to your existing NMEA 2000 backbone using a standard T-connector and drop cable—the radio automatically joins the network and begins sharing data with chartplotters, multifunction displays, autopilots, and other networked devices. Your chartplotter can display AIS targets received by the GX6000, show DSC calls on-screen, and share GPS position data bidirectionally. NMEA 0183 output provides compatibility with older marine electronics that don't support NMEA 2000, ensuring the GX6000 integrates with virtually any marine electronics installation.

Wireless Multi-Station Control

The GX6000 supports unprecedented flexibility for multi-station installations. Using the optional SCU-30 wireless access point, connect up to four RAM4W wireless remote access microphones with an operating range up to 65 feet throughout your vessel. Each RAM4W provides complete control of all radio functions including channel selection, power adjustment, scanning, DSC calling, position polling, group calling, and more. The RAM4W units also function as a wireless intercom system—communicate privately between the main station and remote stations, or between remote stations, without broadcasting over external speakers. This capability is invaluable on large vessels requiring bridge, flybridge, cockpit, and engine room communication. For installations not requiring wireless capability, connect up to two wired RAM4 remote microphones for hardwired multi-station control.

Integrated Loud Hailer and Foghorn System

The built-in 25-watt dual-zone PA/loud hailer system eliminates the need for separate loud hailer equipment. Connect PA horn speakers to the forward and aft outputs for 360-degree voice projection, or use both outputs for a single high-power speaker configuration. Preprogrammed COLREGs-compliant foghorn signals include patterns for power-driven vessels underway, vessels at anchor, vessels aground, and restricted visibility situations. Bell and whistle signals provide complete regulatory compliance for all navigation situations. Listen-back capability allows you to monitor audio from the PA horn speakers. Uniquely, the GX6000 continues monitoring your last selected VHF channel and displaying AIS information even while operating in PA or fog mode, ensuring you never miss critical radio traffic or collision warnings while using the loud hailer.

Voice Scrambler for Secure Communications

The integrated 32-code voice scrambler provides private communications for fleet coordination, security operations, or confidential vessel-to-vessel conversations. The FVP-42 compatible 32-code system offers significantly more security than basic 4-code scramblers while maintaining backward compatibility—the GX6000 can communicate with both 32-code and 4-code equipped radios. Select any channel except 16 and 70 for scrambling, choose a common code number between transmitting and receiving radios, and your communications become unintelligible to anyone without the correct code. Essential for charter fleets, commercial operations, law enforcement, and any application requiring communication privacy.

GPS, Waypoint Navigation, and Position Tracking

The built-in 66-channel GPS receiver provides fast, accurate position fixes for DSC distress calling, position reporting, waypoint navigation, and AIS target tracking. Store up to 200 waypoints marking favorite fishing spots, anchorages, marina entrances, and navigation hazards. Navigate to stored waypoints using the compass screen showing bearing, distance, and graphical direction indicator. The GPS compass function displays your vessel's heading derived from GPS track. Position logger functionality records your GPS tracks at configurable intervals for voyage review, fuel efficiency analysis, or recreating successful fishing runs.

Compatibility & Integration

The GX6000 is compatible with a comprehensive ecosystem of Standard Horizon accessories. Remote microphones include the wired RAM4 and wireless RAM4W (requires SCU-30 wireless access point). The optional MMB-84 flush mount bracket provides low-profile installation. Connect external PA horn speakers such as the Standard Horizon 220SW or 240SW. The MEK-4 microphone extension kit allows relocating the front panel microphone to the rear panel with up to 20 feet of extension. External speakers including MLS-300 and MLS-310 (with built-in 10W amplifier) provide additional audio output options. The GX6000 integrates with all major chartplotter brands via NMEA 2000 or NMEA 0183 including Garmin, Raymarine, Furuno, Simrad, B&G, and Lowrance systems.

What's Included

• Standard Horizon GX6000 Quantum VHF radio main unit
• Command microphone with channel up/down and 16/S buttons
• Mounting bracket with hardware and knobs
• DC power cable with inline fuse holder
• Mounting template
• Owner's manual with installation guide and wiring diagrams
• Warranty registration information

Why Buy From Us? Maximum Value with FREE SHIPPING!

FREE SHIPPING: We deliver your Standard Horizon GX6000 Quantum VHF radio at absolutely no shipping cost to you. This professional commercial-grade communication system ships safely and quickly to your location—no minimum order required, no hidden fees. Save $25-40 on standard carrier rates while equipping your vessel with the most advanced VHF/AIS communication hub available. Combined with Standard Horizon's exceptional 3-year waterproof warranty and our commitment to customer service, you're getting the best possible value on this flagship marine radio system. Free shipping makes upgrading to professional-grade communication more affordable than ever.

Ideal For

The Standard Horizon GX6000 Quantum is the premier choice for commercial fishing vessels, charter boats, passenger vessels, offshore cruising yachts, superyachts, tugboats, workboats, research vessels, and serious recreational boaters who demand the ultimate in marine communication capability. Perfect for vessels operating in busy shipping lanes, commercial harbors, or offshore where AIS collision avoidance is critical for safety. The wireless multi-station capability makes it ideal for large vessels requiring communication and control from multiple locations including bridge, flybridge, cockpit, engine room, and crew quarters. Fleet operators benefit from the integrated voice scrambler for private communications. Recreational boaters who cruise extensively, participate in rallies, or operate larger vessels (50+ feet) appreciate the professional features, situational awareness, and integration capabilities that exceed typical recreational VHF radios.

Installation Notes

Professional installation is recommended for the GX6000 to ensure proper integration with NMEA networks, AIS antenna installation, and optimal placement of the main unit and remote stations. The radio requires connection to a 13.8 VDC power source with adequate wire gauge (10 AWG or larger recommended for runs over 10 feet). A separate dedicated AIS antenna is required for AIS receiver functionality—sharing the VHF antenna is not recommended for optimal dual-channel AIS reception. NMEA 2000 installation requires an existing NMEA 2000 backbone with available T-connector and drop cable. Consult with a certified marine electronics installer for complex multi-station installations with wireless RAM4W microphones.

Optional Accessories (Sold Separately)

• RAM4W: Wireless remote access microphone with full radio and DSC control
• SCU-30: Wireless access point required for RAM4W operation (supports up to 4 units)
• RAM4: Wired remote access microphone with 23-foot cable
• MMB-84: Flush mount bracket for low-profile installation
• MEK-4: Microphone extension kit (up to 20 feet)
• 220SW: 4.5" round PA/hailing horn (30W, 4-8 Ohm)
• 240SW: 5" x 8" rectangular PA/hailing horn (30W, 4-8 Ohm)
• MLS-300: External speaker
• MLS-310: External speaker with built-in 10W amplifier
• Dedicated AIS Antenna: Required for AIS receiver operation (various manufacturers)

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. Manufactured in Japan to the highest quality standards, Standard Horizon equipment is renowned for innovative features, commercial-grade reliability, and exceptional performance in the harshest marine environments. The company pioneered many of the advanced features now standard in marine VHF radios including integrated GPS, DSC, and AIS functionality. Standard Horizon radios are the preferred choice of commercial fishing fleets, coast guards, navies, and professional mariners worldwide who depend on their communications equipment for safety and livelihood. Every Standard Horizon product is backed by an industry-leading 3-year waterproof warranty and supported by expert technical staff in the United States.