The Garmin GA™ 38 GPS/GLONASS Antenna, Black (010-12017-30) is a low-profile, IPX7 waterproof external antenna engineered to track both GPS and GLONASS satellite constellations for fast, highly accurate position fixes. Supplied with a 32 ft (10 m) RG-58 cable with a BNC-to-BNC connector, this version features a sleek black finish designed to seamlessly match dark vessel hulls, hardtops, or stealth marine radar arches. Built for flexible installation, the unit comes complete with versatile mounting hardware supporting standard 1″ x 14 TPI marine pole mounting, surface mounting, or under-fiberglass-deck installation to maintain strong signal reception in challenging marine environments.

In the Box

GA 38
Surface mounting bracket
Pole mounting bracket
Under-deck mounting bracket (white model only)
Mounting hardware
BNC-BNC 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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