Em-Trak Marine Electronics 304-0055 GPS100 External GPS Antenna for AIS Transceivers

The Em-Trak GPS100 (304-0055) is a high-performance external GPS antenna designed for marine AIS applications where optimal satellite positioning is essential. This active antenna is ideal for installations where the AIS transceiver is mounted deep inside the vessel or on steel boats where internal GPS reception may be compromised.

Key Features:

• Compatible with all Em-Trak Class A and Class B AIS transceivers
• Universal compatibility with any AIS transponder featuring a TNC socket, including Raymarine, Navico, and Furuno systems
• 50-channel GPS receiver with active antenna for enhanced signal reception
• 32.81-foot (10-meter) RG-58 cable with male TNC connector provides installation flexibility
• 25dB gain for reliable satellite positioning performance
• Requires 3.3V to 5V bias voltage (center pin positive)
• Standard 1-1/4 inch UNC thread mount compatible with common VHF antenna mounts
• Rugged marine-grade construction for harsh saltwater environments

This external GPS antenna is particularly recommended for steel vessels, installations in enclosed spaces, or any location where GPS reception via an internal antenna would be insufficient. When programming your AIS system, use the GPS antenna location as the reference point for calculating vessel dimensions to ensure maximum positioning accuracy.