The Garmin GA™ 38 GPS/GLONASS Antenna (010-13305-00) is a low-profile, IPX7 waterproof external antenna designed to provide precise position data by tracking both GPS and GLONASS satellite constellations. Supplied with a 32 ft (10 m) RG-58 cable featuring a BNC-to-SMA connector, it is tailored specifically for direct connection to compatible marine electronics such as Vesper Cortex systems, AIS receivers, and VHF radios. The antenna includes versatile hardware support for surface mounting, standard 1″ x 14 TPI pole mounting, or under-fiberglass-deck installation, ensuring optimal signal reception even when mounted in challenging onboard locations.

In the Box

GA 38
Surface mounting bracket
Pole mounting bracket
Under-deck mounting bracket (white model only)
Mounting hardware
BNC-SMA antenna cable (32 ft/10m)
Installation instructions

Technical Specification

General Specifications

Dimensions (DxH): 3 19/32″ x 1 15/18″ (91.6 mm x 49.5 mm)
Weight: 7.1 oz (201 g), white; 4.5 oz (128 g), black
Temperature range: -22° F to 176° F (-30° C to 80° C), white; -22° F to 158° F (-30° C to 70° C), black
Case material: Fully gasketed, high-impact plastic alloy, waterproof to IPX7

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