B&G Brookes & Gatehouse Zeus ZG50 Advanced 5Hz GPS Antenna
Best high-precision GPS upgrade for serious sailors and navigators.
The B&G Zeus ZG50 is an advanced marine GPS antenna delivering reliable, high-confidence positioning for your vessel. It provides superior position, course, and speed data by updating five times per second, ensuring accuracy even during dynamic boat movements. This unit guarantees all connected displays share the identical GPS source via SimNet connectivity to Zeus displays. It integrates seamlessly with NMEA 2000 networks and supports WAAS and EGNOS for enhanced location precision. Its compact design allows for flexible mounting options on the deck or pushpit, making it a versatile addition to your marine electronics.
$249.95
Owner Satisfaction
4.7
/ 5
Category Rank
3
/ 238
#3 in Marine Chartplotters & GPS
Price vs Category Average
-87%
Below average
VSWR
1.5
Who it's for
- B&G system owners seeking simple, plug-and-play network integration
- High-speed racers needing precise, real-time positional tracking
- Offshore sailors navigating remote or challenging signal environments
Who should skip it
- Vessel owners lacking an existing NMEA 2000 network infrastructure
- Budget-conscious boaters prioritizing cost over high-performance specifications
- Casual cruisers who do not require high-frequency positional updates
Performance breakdown
Positioning Accuracy
WAAS and EGNOS support ensures pinpoint location tracking in open water.
Update Frequency
Five updates per second provides smooth, real-time tracking during dynamic maneuvers.
Network Integration
NMEA 2000 and SimNet compatibility make system-wide data sharing effortless.
Mounting Versatility
Compact footprint allows for easy installation on deck or pushpit rails.
Signal Reliability
Omnidirectional design maintains a consistent lock even in challenging marine environments.
System Synchronization
Ensures every connected display shares the exact same GPS source data.
Key Specs
VSWR
1.5
Frequency Band
2.4 GHz
Connector Type
SMA
Directionality Type
Omnidirectional
Power Source
Passive
Antenna Application
GPS
Mounting Type
Outdoor
Gain
5.0 dB
Features
- Advanced 5Hz GPS performance for precise tracking
- Ensures identical GPS position for all displays
- Seamless integration with Zeus displays
- NMEA 2000 compatible for network connectivity
- WAAS/EGNOS support for improved accuracy
- Compact design for versatile installation
- High-accuracy position reporting
- SimNet connectivity
What customers say
Users consistently praise the ZG50 for its exceptional reliability and rapid performance. The 5Hz update rate is frequently highlighted, providing superior positional accuracy vital for competitive sailing and navigation. Installation is remarkably straightforward, with the antenna integrating seamlessly into existing B&G networks. Although the initial investment is substantial, the consensus is clear: the precision and dependable signal acquisition make this unit an essential and worthwhile upgrade for serious mariners seeking dependable results.
Know before you buy
A 5Hz update rate means the antenna refreshes your position five times per second. This provides a much smoother and more responsive display of your vessel's movement on your chartplotter, which is particularly helpful when navigating in tight channels or during high-speed maneuvers.
Yes, the ZG50 is fully NMEA 2000 compatible. It integrates seamlessly into your existing marine network, allowing it to share precise GPS data across all connected displays.
WAAS and EGNOS are satellite-based augmentation systems that correct signal errors caused by atmospheric conditions. By supporting these, the ZG50 provides significantly higher location accuracy than standard GPS receivers.
The ZG50 is designed for versatility and can be mounted on either the deck or a pushpit. Its compact, rugged design allows for flexible installation to ensure you get the best possible signal reception for your specific boat layout.
Yes, by using the ZG50 as your primary GPS source, you ensure that all connected Zeus displays and other network devices are pulling from the exact same high-confidence data stream, eliminating discrepancies between screens.
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$250