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Automatic Identification System Receiver

Discontinued. No longer available.

A Quick Overview:

• Aids mariners in navigation and collision avoidance
• NMEA 2000 certified for easy installation
• Built-in passive splitter will enable one VHF antenna to serve for both the Garmin AIS 300 and any VHF radio with minimal signal loss – makes for easy installation
• Integrate AIS target data information directly on the chartplotter display (AIS target overlay, MMSI number saving, vessel status and more)
• When integrated with a compatible Garmin chartplotter1 and VHF 200 or VHF 300 series radio via NMEA 2000, mariners can initiate a call to any MMSI target directly from the chartplotter by selecting the Call With Radio function
• Dual channel AIS receiver with Class A and Class B reception
• Aids in collision avoidance by integrating a CPA alarm when connected to a compatible chartplotter
• NMEA 0183 output with selectable high/low speeds
• Supports 12 V and 24 V boat systems
• Dimensions: 8.2”W x 5.5”H x 1.8”D (207 x 140.6 x 45.7 mm)
• Weight: 1 lb. 7.6 oz. (670 g)
• Waterproof: IPX7 – submersible

Garmin's AIS 300 receiver offers an affordable solution for receiving AIS target data, providing mariners with an improved situational awareness and better collision avoidance. This affordable NMEA 2000®-compatible AIS receiver alerts you to potential collisions with other AIS-equipped vessels in your vicinity. When used with a Garmin chartplotter and VHF, vessel information is quickly accessible, and a VHF DSC call to the threat can be made with minimal key presses.

Know Your Surroundings

This black box AIS receiver integrates with a Garmin chartplotter and VHF radio to enable automatic AIS target calling and to display AIS target data directly on the chartplotter screen. To ensure no loss of information, dual-channel monitoring allows for independent monitoring of both AIS channels. The AIS 300 receiver also includes Class A and Class B reception which allows decoding of AIS traffic from both commercial and leisure vessels. Additionally, the AIS 300 can further aid in collision avoidance by integrating a Closest Point of Approach (CPA) alarm when connected to a compatible chartplotter. Mariners can rest easy knowing they have visibility of all the boat traffic around them.

Installation Made Easy

The AIS 300 is NMEA 2000 certified and is easily added to your existing NMEA 2000 network. It is compatible with both 12-volt and 24-volt boat systems. Additionally, the AIS 300 offers a NMEA 0183 output with selectable speed. A built-in passive splitter enables one VHF antenna to serve both the AIS 300 and any VHF radio, making for easy installation. Once installed, users can view all AIS data on their chartplotters so they'll have all the information they need at their fingertips.

The AIS 300 is compatible with the following chartplotters:

  • GPSMAP 400 series
  • GPSMAP 500 series
  • GSPMAP 700 series
  • GPSMAP 4000 series
  • GPSMAP 5000 series
  • GPSMAP 6000 series
  • GPSMAP 7000 series

Unit Dimensions, WxHxD: 9.8" x 7.1" x 2.5" (24.9 x 18.0 x 6.4 cm)
Waterproof: yes (IPX7)
Temperature Range: From -4°F to 149°F (from -20°C to 65°C)
Weight: 4.2 lb (1.9kg)
Operating Voltage: 9.6–31.2 Vdc (12 Vdc or 24 Vdc boat battery)
Current Drain: 250mA
Antenna Connector: S0-239 (50 Ω)
Max Antenna Gain: 9 dB
Antenna Port Impedance: 50 Ω
NMEA 2000 Power Usage: LEN=2
Garmin AIS 300 accessories

Garmin AIS 300

In the Box:
• AIS 300
• Power/data cable
• NMEA 2000 drop cable (2m)

• VHF interconnect cable
NMEA 2000 T-connector
Mounting hardware
• Documentation

Chartploteer Screenshot Samples

AIS 300 screenshot


AIS 300 screenshot 2


AIS 300 Screenshot 3



Garmin logo

Garmin AIS 300

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