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B&G

000-11048-002

ZG100 GPS Antenna

The B&G ZG100 GPS antenna is a 32-channel GNSS receiver at 10 Hz with integrated heading sensor, designed for NMEA 2000 networks with Zeus and Vulcan chartplotters. It enables chart stabilization and radar overlay, but is not suitable for autopilot or MARPA target tracking, which require a dedicated compass such as the Precision-9.

Includes: ZG100 antenna, flush-mount gasket, and mast mounting bracket.

Retail priceBenefit from the professional rate

$290.00 USD

$290.00 USD ~~$342.00 USD~~

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Prices exclude import taxes (rate varies by item and state). DAP delivery: import taxes are paid on delivery.

Low stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

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Support service

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Technical specifications

NMEA 2000 Load Equivalency Number (LEN)	1
Operating voltage	9 V DC - 18 V DC
Operating temperature	-20°C to +60°C
Max power consumption	2 W
Typical power consumption	1.2 W
Recommended fuse rating	3 A
Product width	90 mm
Product height	38 mm
Product depth	90 mm
IP rating	IPX7
Wired network	NMEA 2000
Mounting type	Flush-mounted, mast-mounted, or surface-mounted
Certifications	CE, EN 60950-1:2006, EN 60945:2002, EN 303 413 V1.1.1, EN 301 489-19 V2.1.0, EN 301 489-1 V2.2.0, RED 2014/53/EU, Radiocommunications (Electromagnetic Compatibility) standard 2017
Supported GNSS systems	GPS, GLONASS, Galileo, WAAS, EGNOS, MSAS
GPS update rate	Up to 10 Hz (configurable 1, 5, 10 Hz)
Horizontal accuracy	3 m
Heading accuracy	+/- 3
GPS antenna connector	NMEA 2000 Micro C
Antenna type	External
Storage temperature	-40°F to +185°F
Bus compatibility	Yes
Current consumption	< 100 mA at 12 V DC
Dimensions Diametre	90
Height	38
Position update rate	10
Indice De Protection	IPX7
Montage	Flush mount / Standard pole mount
NMEA 2000 compatibility	Yes
Position Update Rate	10
Power supply	12VDC
Product weight	0.14
Reverse polarity protection	Yes
Stabilisation De Carte	Yes
Supply voltage	9 V DC - 18 V DC
IP rating	IP67

Detailed description

The B&G ZG100 GPS antenna is a position receiver and heading sensor designed for B&G instrument systems and chartplotters. It provides position, heading, speed over ground (SOG) and course over ground (COG) data at a 10 Hz refresh rate.

GPS and integrated sensors

The ZG100 features a 32-channel GPS receiver, compatible with GPS, GLONASS and Galileo constellations, and supports SBAS augmentation systems (WAAS, EGNOS, MSAS) for 3-meter horizontal accuracy. The update rate is configurable up to 10 times per second (10 Hz). It includes an electronic compass and inertial sensors, providing magnetic heading with +/- 3° accuracy, yaw rate (+/- 3°), and roll and pitch (heel/trim) with +/- 1° accuracy at 30° tilt.

Position in the B&G range

The ZG100 supplies heading data for chart stabilization in "North-up" mode or for overlaying radar images on cartography. For functions requiring higher heading accuracy, such as autopilot in heading mode or MARPA target tracking, B&G recommends a compass like the B&G Precision-9. The ZG100 is suitable for instrumentation and general navigation; the Precision-9 is intended for autopilot and anticollision systems.

Technical specifications and connectivity

The ZG100 antenna connects to the network via a standard NMEA 2000 Micro-C port. It is powered by the network (9-18 V DC) with power consumption below 100 mA at 12 V DC (less than 2 W). Its 90 mm diameter housing is waterproof to IPX7 standards for deck mounting. It transmits NMEA 2000 PGNs for position (129025), COG & SOG (129026), heading (127250), yaw rate (127251) and attitude (127257).

Documentation

Type	Nom
	EN - Installation guide and technical sheet - ZG100 GPS antenna

Expert opinion

Pol CONIN

Digital Manager

« Position 10 Hz and heading for instruments: the B&G reference »

The B&G ZG100 antenna is a versatile and high-performance solution for most cruising and racing sailboats. Its main advantage lies in its 10 Hz refresh rate, which provides smooth tracking of position and COG/SOG data—a clear improvement over older 1 Hz or 5 Hz antennas. The integrated compass is relevant for stabilizing chart display and overlaying radar data coherently. It is important to understand its positioning: it is an excellent auxiliary positioning and heading sensor but lacks the gyroscopic stabilization of a Precision-9. It should not be used as the primary heading source for an autopilot or for the MARPA function, which require the responsiveness and precision that only a dedicated compass can provide. Its NMEA 2000 integration is straightforward (LEN 2), making it an easy and reliable addition to any existing network.

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ZG100 GPS Antenna

$290.00 USD

$290.00 USD ~~$342.00 USD~~

Frequently Asked Questions

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What are the main data provided by the ZG100 antenna?

The GPS antenna ZG100 provides a complete set of navigation data, including:

Geographic position (latitude/longitude)Magnetic headingSpeed over ground (SOG)Course over ground (COG)Rate of turnRoll and pitch

What is the GPS data refresh rate of the ZG100?

The ZG100 antenna provides a high and configurable position data refresh rate up to 10 Hz (10 times per second). This enables very smooth tracking of the boat's movements on your display.

How does the ZG100 antenna connect to my navigation system?

The ZG100 antenna connects very simply to your existing installation via a standard NMEA 2000 Micro-C port. Power and data are transmitted through this single cable.

Can I use the ZG100 antenna to control my B&G autopilot?

No, it is not recommended to use the ZG100 for autopilot functions. For this application, which requires very high heading precision, B&G recommends using a gyrostabilized compass such as the B&G Precision-9.

Is the ZG100 antenna waterproof?

Yes, the ZG100 antenna has an IPX7 protection rating. It is therefore designed to withstand marine conditions and is protected against temporary immersion in water.

What is the GPS position accuracy?

The ZG100 antenna provides horizontal positioning accuracy of 3 meters, thanks to its compatibility with satellite-based augmentation systems (SBAS) such as WAAS, EGNOS, and MSAS.

What are the possible mounting methods for this antenna?

The ZG100 antenna is versatile and can be installed in two ways:

In flush mount on a flat surface. On a standard mast mount (pole mount).

Is this antenna compatible with the MARPA function of my radar?

No, the ZG100 is not recommended for the MARPA (Mini Automatic Radar Plotting Aid) function. This target-tracking function requires a higher-performance heading sensor such as the B&G Precision-9 to ensure reliable operation.

What is the required supply voltage for the ZG100?

The antenna is powered directly from the NMEA 2000 network. It operates within a voltage range of 9 V to 18 V DC.

What are the dimensions and weight of the antenna?

The ZG100 antenna is compact and lightweight. It measures 90 mm in diameter and 38 mm in height, and weighs approximately 0.14 kg.

What is the accuracy of the built-in compass?

The electronic compass integrated in the ZG100 antenna provides heading data with an accuracy of +/- 3 degrees.

Is the ZG100 antenna compatible with displays from brands other than B&G?

Yes, provided your equipment (chartplotter, display) is NMEA 2000 network-compatible and can interpret the standard PGNs (data sentences) transmitted by the ZG100, it should work without issues.

Which satellite systems does the ZG100 antenna use?

The antenna is equipped with a 32-channel multi-constellation receiver. It is compatible with GPS, GLONASS, and Galileo systems for fast and reliable position acquisition.

Does the antenna require a separate power cable?

No. One of the advantages of NMEA 2000 is its simplicity. Power and data transmission are carried over a single NMEA 2000 Micro-C cable, which connects to your boat's network.

What is the power consumption of the ZG100 antenna?

The ZG100 is very energy-efficient. Its power consumption is less than 100 mA at 12 V DC, which corresponds to a power draw of under 2 Watts.

What is the ZG100 primarily recommended for?

The ZG100 is the ideal solution for general instrumentation and navigation. It excels at providing heading data for chart stabilization in "North-up" mode and for precise overlay of radar images on cartography.

What are the operating temperatures for this device?

The ZG100 antenna is designed to withstand a variety of marine environments. Its operating temperature range is from -25°C to +60°C.

What motion (attitude) data can the antenna provide?

In addition to heading, the ZG100 integrates inertial sensors that provide roll and pitch data (heel/trim) with an accuracy of +/- 1° up to 30° of tilt, as well as yaw rate with an accuracy of +/- 3°.

Is the ZG100 antenna a good alternative to the Precision-9 compass?

It depends on your needs. For stable heading display on a chartplotter and radar overlay, the ZG100 is an excellent solution. However, for critical functions such as autopilot operation or MARPA target tracking that require higher precision and responsiveness, the Precision-9 compass remains the recommended product.