Enhance your boating navigation with the Raymarine GA150 external GPS/GLONASS antenna, a compact powerhouse designed specifically for a9 and a12 series multifunction displays. Whether you're mounting your chartplotter below decks, under a hardtop, or in any spot with obstructed sky views, this passive antenna captures strong satellite signals and relays them directly to your MFD's built-in receiver. No need for complex active GPS units—just plug and play for reliable positioning even in the toughest marine conditions.

Why Choose the GA150 for Superior Signal Reception?

Modern multifunction displays rely on precise GNSS data for charting, autopilot integration, and fishfinding. But internal antennas often struggle in enclosed spaces. The GA150 solves this by acting as a remote signal booster. Its high-sensitivity patch design pulls in GPS and GLONASS signals from multiple satellites, ensuring faster fixes and fewer dropouts. Boaters report lock-on times dropping from minutes to seconds after installation, keeping you on course during coastal cruises or offshore adventures.

Built to Raymarine's legendary standards, it thrives in saltwater spray, pounding waves, and extreme weather. The rugged housing withstands impacts and corrosion, while seals prevent water ingress—proven in real-world tests from the tropics to the Arctic.

Versatile Mounting Options for Any Vessel

Adapt to your boat's layout with ease. Flush-mount it on a horizontal deck or rail using the included gasket and hardware for a low-profile look. Or elevate it with the pole mount adapter for unobstructed views above superstructures. At just 95mm across and 30mm tall (62mm with adapter), it blends seamlessly without adding windage or cluttering your deck.

Seamless Integration with Your Raymarine Ecosystem

This antenna pairs exclusively with select LightHouse-powered MFDs, channeling signals via a pre-fitted 10-meter cable with a secure TNC connector. Simply attach to the dedicated port on the back of your display—no extra power or configuration needed. Your MFD's internal GNSS stays active, combining external boost with onboard processing for optimal performance.

Confirmed compatibility includes:

• aSeries: a95, a97, a98, a125, a127, a128
• eS Series: eS97, eS98, eS127, eS128

Pro tip: Position the antenna as high and clear as possible, away from metal masts or engines, to maximize satellite acquisition in crowded marinas or under bimini tops.

Key Specifications at a Glance

Everything You Need for Quick Setup

• GA150 antenna with 10m (33 ft.) cable
• Mounting gasket for secure seal
• Pole mount adapter
• Thumb nuts, studs, and screws
• Documentation pack

Installation is straightforward: Clean the surface, apply the gasket, secure with hardware, and route the cable neatly through existing conduits. Most skippers complete it in under an hour, no special tools required.

Real Boater Benefits Beyond Specs

Skip the frustration of 'no fix' errors mid-voyage. Pair it with Raymarine radars or sonar for a full nav suite that performs when it counts. Its longevity means fewer replacements, saving time and hassle on the water. Trusted by serious anglers, racers, and cruisers worldwide for over eight decades of Raymarine innovation.