PRECISION NAVIGATION: Featuring a 10Hz update rate, this antenna refreshes your position 10 times per second for smooth, real-time tracking on your MFD.

Key Features

• ✔ 10Hz Refresh Rate: Rapid signal acquisition and smooth tracking
• ✔ Multi-GNSS Support: GPS, GLONASS, WAAS, EGNOS, and MSAS
• ✔ Heading Sensor: Integrated electronic compass for radar overlay
• ✔ Plug & Play: NMEA 2000 Micro-C connectivity
• ✔ Rugged Build: IPX7 waterproof for harsh marine environments

Technical Specs

Channels:	32 Channels
Accuracy:	Horizontal < 3m
Voltage:	9V - 18V DC
Power Draw:	< 2W (< 100mA)
Interface:	NMEA 2000
Dimensions:	90mm (Dia) x 38mm (H)

Brand	Series/Model	Notes
Simrad	NSS EVO2/EVO3, NSE, NSO, GO Series	Full Integration
B&G	Zeus, Vulcan, Triton	Full N2K Support
Lowrance	HDS Gen2/3, Carbon, Live, Elite FS/Ti	N2K Drop
All Brands	Any NMEA 2000 Certified Backbone	Standard PGN Data

Is this a genuine original part?

Yes, this is a genuine Simrad (Navico Group) part, ensuring full compatibility and factory-standard performance with your marine electronics.

Will this heading sensor work for Autopilot or MARPA?

While the GS25 provides excellent heading data for chart stabilization and radar overlay, it is not recommended for use as a primary source for Autopilot systems or MARPA tracking. For those applications, a rate-stabilized compass like the Simrad Precision-9 is required.

What is included in the box?

The kit typically includes the GS25 antenna with its 4-foot (1.2m) pigtail cable, a 15-foot (4.5m) NMEA 2000 extension cable, a T-connector, and mounting hardware for both flush and pole-mount installations.