The Garmin GA™ 38 GPS/GLONASS Antenna, Black (010-13305-20) is a low-profile, IPX7 waterproof external antenna designed to lock onto both GPS and GLONASS satellite constellations for rapid, precise satellite positioning. Supplied with a 32 ft (10 m) RG-58 cable featuring a BNC-to-SMA connector, this version is configured for direct connection to compatible marine electronics with SMA ports, such as AIS receivers, VHF radios, and Cortex smart transceivers. Finished in a sleek black housing to complement dark vessel hardtops and radar arches, the package includes complete mounting hardware for standard 1″ x 14 TPI marine pole mounting, surface mounting, or under-fiberglass-deck installation.