B&G ZG100 External GPS Antenna with Built-In Rate Compass — 10 Hz Marine Positioning

Meet the B&G ZG100, a purpose-built external GPS antenna that elevates marine navigation with ultrafast 10 Hz position updates and an integrated rate compass. Designed for sailors, racers, and offshore passagemakers, it delivers consistently reliable fixes and precise heading data to your chartplotters and radar overlays, even in challenging seas and crowded waterways.

Why the ZG100 changes the way you navigate

In demanding conditions, every tenth of a second counts. The ZG100’s 10 Hz update rate provides smoother track plotting, faster course corrections, and clearer target tracking on radar overlays. The built-in rate compass adds dependable heading data for accurate chart orientation in Head-Up Mode, helping you stay oriented as you steer through chop, fog, or busy shipping lanes.

Key features that matter on the water

• 10 Hz Update Rate: ultrafast position and heading updates for crisp, responsive navigation and smoother track history.
• Built-In Rate Compass: reliable heading data seamlessly integrated with radar overlays and chart orientation.
• Multi-GNSS Engine: combines GPS and GLONASS with optional WAAS/EGNOS/MSAS corrections for quicker fixes and better signal coverage.
• Galileo Ready: future firmware support expands sky coverage and accelerates fixes even further.
• NMEA 2000 Integral Module: rugged, marine-grade data transmission that simplifies wiring and integration with chartplotters and displays.
• Independent Source Selection: lets networked displays designate this antenna as a trusted data source for redundancy and reliability.
• Time-to-First-Fix Optimized: rapid initial lock after power-up thanks to advanced signal processing and multi-GNSS support.
• Chart Stabilization & Low-Speed Filtering: maintains a steady Course over Ground at slow speeds—ideal for docking and marina maneuvers.
• Radar Overlay Compatibility: precise heading data enhances radar overlays for safer, more confident crossings and arrivals.
• Rugged Waterproof Design: built to withstand spray, salt, and sun in any marine environment.
• Flexible Installation: mast, rail, stern rail, or arch mounting options maximize sky view and signal reception.

What this means for your voyage

Whether you’re racing a tight course, cruising along a crowded coastline, or threading a marina, the ZG100 delivers dependable data that improves decision-making. Its robust redundancy and straightforward wiring reduce your system’s complexity, while the 10 Hz updates and rate compass help you keep a true course with confidence.

Real-world use cases

• Racing: crisp track plotting and rapid heading updates keep you on the fastest line and aligned with race courses even in chop.
• Coastal Cruising: steady Course over Ground at slow speeds prevents drift and makes docking smoother.
• Offshore Passage: multi-GNSS coverage and fast fixes translate to shorter GPS hold times in variable sky conditions, improving fuel planning and timing.
• Marina Maneuvers: reliable heading for precise radar overlays and safer, more predictable exits and entries.

Installation and integration tips

Place the ZG100 where it has a clear view of the sky—on a mast, arch, or rail—so it can consistently lock onto satellites. Pair it with compatible chartplotters and radar displays via NMEA 2000 for a clean, centralized navigation network. The independent source selection feature provides peace of mind by designating the ZG100 as a trusted data source when redundancy matters.

Why choose Advance Trident and the ZG100

Advance Trident backs the ZG100 with proven support and broad compatibility across common displays and digital charting suites. Built for reliability at sea, this antenna isn’t just a receiver—it's a trusted navigator that consolidates position, heading, and network integration into one robust package.

Technical snapshot (benefits in practice)

• 10 times per second for smoother autopilot and chart updates in rough seas.
• Heading reliability: rate compass data enhances radar overlays and reduces misalignment during fast maneuvers.
• Signal resilience: multi-GNSS with compatible corrections shortens time to fix and improves reception in garbled or marginal sky views.
• Network simplicity: NMEA 2000 integration minimizes wiring complexity and maximizes data integrity across displays.

Upgrade your marine electronics with a purpose-built solution that delivers precise positioning and dependable heading where it matters most. The B&G ZG100 External GPS Antenna with Built-In Rate Compass — engineered for performance, designed for the sea, and backed by Advance Trident support.