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Navico

000-13613-001

GPS-500 Antenna for NAIS-500

The Navico GPS-500 antenna is an external GPS antenna dedicated to the NAIS-500 Class B AIS transponder. It ensures optimal and stable GPS reception for the 50-channel receiver compliant with IEC 61108-1 standard of the NAIS-500, connecting via an SMA connector. This product is a spare part or an essential addition for NAIS-500 AIS transponders.

Retail priceBenefit from the professional rate

145,97€

145,97€ ~~187,74€~~

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Low stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

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Installers near you

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Support service

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Technical specifications

NMEA 2000 Load Equivalency Number (LEN)	0
Operating voltage	9.6 to 31.2 V DC
Operating temperature	-15 to +55 °C
IP rating	IP67
Wired network	None
Mounting type	Surface mount
Certifications	CE, IEC 60945, IEC 61108-1
Supported GNSS systems	GPS
GPS update rate	10 Hz
Horizontal accuracy	3 m
GPS antenna connector	SMA
Antenna type	External
Storage temperature	-20 to +70 °C
Anatel Certificate Number	00114-18-04558
Antenna Cable Integrated	Yes
Antenna Design Type	Patch
Antenna Gain Dbi	28
Antenna Housing Material	ASA plastic, UV-resistant
Impédance de l'antenne	50
Antenna Mounting Options	Surface mount, mast mount
Antenna Polarization Type	RHCP
Antenna Power Consumption Ma	30
Antenna Radome Material	ASA plastic
Forme de l'antenne	Dome
Asbestos free	Yes
Cable type	Coaxial
Ce Affixing Date	23-Dec-2016
Compatible Device Model	NAIS-500
Date de création du produit	2022-11-08 10:30:34
Emc Marine Standard List	EN 301 843-1 V2.1.1, EN 301 843-2 V2.1.1
Emc Standard List	EN 301 489-1 V2.1.0 (Draft), EN 301 489-3 V2.1.0 (Draft), EN 300 440 V2.1.0 (Draft)
GNSS channel count	50
Gnss Compliance Standard	IEC 61108-1
Gnss Frequency Bands Supported	L1 (1.57542 GHz)
Human exposure standard	EN 62311: 2008-01
Longueur du câble inclus	10
Politique d'inventaire	CONTINUE
Last Update Date	2026-05-20 13:58:01
Nom du fabricant	Navico Australia Pty Ltd.
Site web du fabricant	www.simrad-yachting.com
Mounting hardware included	Yes
Noise Figure Db	1.5
Sans composés organostanniques	Yes
Sans substances appauvrissant la couche d'ozone	Yes
Poids emballé	0.35
Sans polychlorobiphényles (PCB)	Yes
Plage de tension d'alimentation	9.6 to 31.2 V DC
Catégorie de produit niveau 0	Merchandise
Product category level 1	NAVICO GROUP
Product category level 2	NAVICO
Product use	GPS antenna for AIS transponder
Product range	NAIS-500
Product Status	ACTIVE
Nécessite expédition	Yes
Safety Standard List	EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013, IEC 62287-1:2010+A1:2013, ITU-R M-1371-5
Taxable	Yes
UV resistance	Yes
Warranty	2
Wireless connectivity	Satellite (GPS)

Detailed description

The Navico GPS-500 antenna is an essential accessory designed to optimize the performance of the NAIS-500 Class B AIS transponder. This external antenna provides a reliable and accurate GPS positioning source, complementing or replacing the NAIS-500’s internal GPS antenna. It is indispensable for installations where the AIS transponder is mounted in an environment likely to obstruct GPS signal reception, such as under the deck, inside a metal hull, or near other electronic equipment. By ensuring superior satellite signal acquisition, the GPS-500 antenna guarantees that the NAIS-500’s 50-channel internal GPS receiver, compliant with IEC 61108-1, maintains an optimal position fix for consistent and accurate AIS transmissions.

Integration and performance of the GPS-500

The GPS-500 antenna connects to the NAIS-500 transponder via a dedicated SMA connector, providing simple and secure integration. This setup allows the antenna to be positioned in the most unobstructed location on the vessel, maximizing sky visibility and GPS signal quality. Robust GPS reception is critical for Class B AIS systems, as it ensures not only the transmission of the vessel’s position coordinates but also accurate calculation of heading and speed. Using an external antenna like the GPS-500 enhances the overall reliability of the AIS system—a critical feature for maritime safety and regulatory compliance. While systems such as the B&G Zeus³S or Garmin chartplotters often integrate high-performance GPS receivers, adding an external antenna to the NAIS-500 ensures equivalent or superior performance under challenging conditions for the specific AIS function.

Reliability and marine environment

Although the exact environmental specifications of the GPS-500 antenna are not detailed independently, it is designed to operate in synergy with the NAIS-500 AIS transponder, which itself is IP67 certified for water resistance and capable of operating within a temperature range of -15 °C to +55 °C. This compatibility implies that the GPS-500 antenna is built to withstand the rigors of the marine environment, ensuring consistent durability and performance in the face of weather, spray, and temperature fluctuations. Investing in a dedicated external GPS antenna like the GPS-500 is a proactive measure to maintain AIS data integrity, essential for collision avoidance and the visibility of your vessel to other waterway users.

Documentation

Type	Nom
	EN - Quick Start Guide
	EN - User Manual
	EN - NAIS-500 GPS Antenna for NAIS-500
	EN - RCM Compliance Declaration
	EN - Material Declaration
	EN - Supplier's Declaration of Conformity (SDoC)
	PT - Type Approval Certificate

Expert opinion

Pol CONIN

Digital Manager

« GPS-500 Antenna: the reliability asset for your NAIS-500 AIS »

The GPS-500 antenna is a strategic accessory for any Class B NAIS-500 AIS transponder, particularly in setups where the internal GPS reception of the main unit is likely to be compromised. As a marine systems engineer, I observe that installations below deck, inside metal hulls, or near other RF equipment are common scenarios where the satellite signal can be attenuated. In these cases, the GPS-500 antenna becomes a critical component for maintaining AIS data integrity.

Its primary use case lies in its ability to provide reliable and accurate GPS positioning, essential for AIS transmissions. Robust GPS reception is fundamental not only for broadcasting your vessel’s coordinates but also for precise calculation of course over ground (COG) and speed over ground (SOG). This is critical for safety at sea and compliance with regulations, ensuring your position is correctly reported to other vessels and coastal stations.

Installation is simplified thanks to its dedicated SMA connector that plugs directly into the NAIS-500, and its 10-meter (33-foot) cable length. This flexibility allows positioning the antenna in the most unobstructed location on the vessel, maximizing sky visibility and GPS signal quality. This capability to separate the GPS sensor from the AIS transponder provides valuable adaptability to installation constraints.

While the NAIS-500 includes a 50-channel GPS receiver compliant with IEC 61108-1, adding the external GPS-500 antenna ensures optimal performance, even in challenging environments. It is important to note that this antenna is specifically designed to enhance the AIS system. It does not replace a dedicated GPS antenna for a multifunction display (MFD) system if that system requires an independent primary positioning source for its own navigation functions or redundancy. The GPS-500 is a relevant choice for owners seeking to maximize the reliability and accuracy of their AIS system, ensuring rapid signal acquisition and consistent performance over time thanks to its durable marine-grade construction.

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GPS-500 Antenna for NAIS-500

145,97€

145,97€ ~~187,74€~~

Frequently Asked Questions

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Which device is this GPS-500 antenna compatible with?

The GPS-500 antenna is specifically designed to be used with the Navico NAIS-500 Class B AIS transponder. It is the official accessory to ensure optimal GPS reception with this device.

Why do I need an external GPS antenna for my NAIS-500?

The GPS-500 antenna is essential when your NAIS-500 transponder is installed in a location where GPS signal reception is obstructed. This is often the case for installations:

Under the boat's deckInside a metal hullNear other electronic equipment that may cause interferenceIt ensures reliable and precise satellite signal acquisition for consistent AIS transmissions.

How is the GPS-500 antenna connected to the NAIS-500 transponder?

The GPS-500 antenna connects directly to the NAIS-500 transponder via the external GPS antenna connector of SMA type on the NAIS-500 unit. The connection is straightforward and secure.

What is the primary role of the GPS-500 antenna?

The primary role of the GPS-500 antenna is to provide a reliable and accurate GPS positioning source to the AIS transponder NAIS-500. It ensures that the NAIS-500's internal GPS receiver maintains an optimal signal for transmitting the vessel's position, heading, and speed.

Where is it recommended to install the GPS-500 antenna on my boat?

For optimal performance, install the GPS-500 antenna in a location on your vessel with an unobstructed view of the sky. This maximizes satellite signal reception and ensures the best possible positioning accuracy.

Can I use this antenna with another AIS model or another GPS?

This antenna is specifically designed and sold to work with the Navico NAIS-500 transponder. Its use with other equipment is not guaranteed by the manufacturer and may not deliver the expected performance.

Does the GPS-500 antenna require a separate power supply?

No, the GPS-500 antenna does not require a separate power supply. It is powered directly by the NAIS-500 transponder via the coaxial connection cable.

Does this antenna improve the accuracy of my AIS?

Yes, by ensuring stable and high-quality satellite reception, the GPS-500 antenna improves the reliability and accuracy of position, heading, and speed data transmitted by your AIS NAIS-500 system, which is critical for safety at sea.

Is the GPS-500 antenna compatible with Simrad, Lowrance, or B&G devices?

Yes, the GPS-500 antenna is compatible with the NAIS-500 AIS transponder, which is a Navico group product. This transponder is often marketed and integrated into Simrad, Lowrance, and B&G systems. The antenna is therefore the recommended accessory for these installations.

Is the antenna resistant to the marine environment?

As an external antenna designed for marine use, the GPS-500 is built with materials suited to withstand marine conditions (sun, salt, humidity). It is recommended to follow the installation instructions to ensure its longevity.

What is the difference between this antenna and a VHF antenna?

It is important not to confuse them. The GPS-500 antenna is designed to receive signals from positioning satellites (GPS). A VHF antenna is used to transmit and receive radio communication signals and AIS data on marine VHF frequencies. The NAIS-500 requires both types of antennas to function correctly.

Does my NAIS-500 already have an internal GPS receiver, do I still need the GPS-500?

The NAIS-500 does indeed have an internal GPS receiver. However, if the unit is installed in a location where satellite signal is weak or blocked (such as a cabin, locker, or beneath a metal structure), the internal receiver will be unable to obtain a reliable position. In this case, the external GPS-500 antenna is required.

What type of GPS receiver is used in the NAIS-500 system that this antenna supports?

The GPS-500 antenna provides the signal to a high-performance GPS receiver integrated into the NAIS-500. This is a 50-channel receiver, compliant with IEC 61108-1, ensuring fast and accurate position acquisition.

Are specific tools required to install the antenna?

Installing the GPS-500 antenna generally does not require specific tools. Connection to the NAIS-500 is made by hand-tightening the SMA connector. For mounting the antenna on its bracket, basic tools such as a screwdriver or drill may be needed depending on the chosen mounting method.

Does this antenna work with NMEA 2000?

The GPS-500 antenna itself does not connect directly to the NMEA 2000 network. It plugs into the NAIS-500 transponder, which, once the GPS position is acquired via the antenna, transmits the positioning data over the NMEA 2000 network (as well as NMEA 0183).

What happens if my GPS-500 antenna loses signal?

If the GPS-500 antenna loses satellite signal, the NAIS-500 transponder will no longer be able to determine its position. Consequently, it will stop transmitting position data via AIS. The error LED (ERR) on the NAIS-500 may light up to indicate the loss of GPS fix.

Do I need to configure anything on my NAIS-500 after connecting the GPS-500 antenna?

No, no software configuration is required on the NAIS-500 after connecting the GPS-500 antenna. The transponder automatically detects the external antenna connection and uses it as the primary GPS signal source.

What type of connector does this antenna have?

The GPS-500 antenna is fitted with an SMA connector, designed to screw into the external GPS antenna port of the NAIS-500 AIS transponder.

What is the GPS-500 antenna used for and is it essential for my NAIS-500 Class B AIS transponder?

The GPS-500 antenna is designed to provide precise and reliable GPS positioning to the NAIS-500 Class B AIS transponder.

It is particularly essential if your transponder is installed in a location where satellite signal reception is obstructed, for example:

Under the boat's deck Inside a metal hull Near other electronic equipment generating interference By maximizing sky visibility, it ensures optimal and secure transmission of your coordinates, heading, and speed.