The GVA100/DB1 is a GPS/VHF combination antenna with DB1 Junction Box. This product does not include the required VHF antenna. A UAIS rated VHF Antenna is a required option – use CX4-3 or purchase locally.
The FURUNO GVA-100 is a high-performance, single-unit antenna that seamlessly integrates a high-sensitivity GPS/GNSS receiver with a powerful VHF marine band antenna. Engineered for reliability and space-saving efficiency, the GVA-100 is the perfect solution for modern mariners seeking to reduce mast clutter and simplify installation without compromising on performance.
By combining two critical functions into one robust housing, it provides a clean, professional installation for both recreational and commercial vessels.
Key Features & Benefits
-
Dual Functionality in a Single Unit:
-
Benefit: Eliminates the need for two separate antennas, cables, and mounting hardware. This reduces installation time, cost, and weight aloft, while creating a cleaner vessel profile.
-
-
High-Sensitivity GPS/GNSS Receiver:
-
Benefit: Tracks multiple satellite constellations (GPS, GLONASS, QZSS, SBAS) for fast, accurate, and highly reliable positioning, even in challenging conditions. Provides essential location data for your chartplotter, AIS, or other navigation systems.
-
-
Optimized VHF Marine Antenna:
-
Benefit: Features a 3 dB gain, 1/2 wave design, providing excellent transmit and receive performance for your VHF radio. Ensures clear communication with other vessels, marinas, and coast stations over its full 156-162 MHz range.
-
-
Robust, Marine-Grade Construction:
-
Benefit: Built with a durable, UV-resistant radome and a stainless steel mount to withstand the harshest marine environments, including saltwater corrosion, heavy weather, and intense sunlight.
-
-
Integrated Preamplifier & Low-Loss Cable:
-
Benefit: The built-in GPS preamplifier ensures a strong signal is delivered to your receiver. The included 10-meter (32.8 ft) of low-loss coaxial cable is pre-terminated for a waterproof, plug-and-play connection to compatible FURUNO and other NMEA 0183/2000 devices.
-
-
Simplified Wiring & Installation:
-
Benefit: A single cable run from the mast to the helm station powers both the GPS receiver and carries the VHF signal, drastically simplifying your vessel’s wiring.
-
Technical Specifications
-
Model: FURUNO GVA-100
-
Functions: Combined GPS/GNSS Active Antenna & VHF Marine Antenna
-
VHF Antenna:
-
Frequency Range: 156 – 162 MHz
-
Gain: 3 dB
-
Impedance: 50 Ohms
-
VSWR: < 1.5:1
-
Connector: TNC (for VHF Radio)
-
-
GPS/GNSS Antenna:
-
Supported Systems: GPS, GLONASS, QZSS, SBAS (WAAS, EGNOS, MSAS, GAGAN)
-
Connector: FAKRA (for Chartplotter/NMEA Interface)
-
-
Cable: Integrated 10-meter (32.8 ft) low-loss coaxial cable.
-
Power Supply: 12-24 VDC (via the GPS receiver cable).
-
Mounting: Stainless steel swivel base with standard 1-inch-14 TPI thread.
-
Dimensions & Weight: Compact and lightweight design for easy mounting on various vessel types.
