Meet the Garmin GA38 GPS/GLONASS Antenna in a sleek black housing — a rugged external antenna designed to boost GPS and GLONASS reception for compatible devices. With a long 10 m (32 ft) cable included, it delivers flexible installation options for marine, automotive, and outdoor setups.

Enhanced satellite coverage

Built to take advantage of the GLONASS constellation alongside standard GPS, the GA38 helps improve satellite lock and reception, providing more reliable positioning in challenging environments.

Low-profile, weather-ready design

encased in a compact, water-resistant black housing, this external antenna is built to withstand harsh conditions while remaining discreet in your installation.

Three flexible mounting options

• Pole mounting
• Surface mounting
• Under-deck mounting (for the underside of fiberglass decks)

Three simple mounting methods give you maximum placement freedom to optimize signal quality.

Complete package with long cable

The GA38 includes everything you need for quick setup: mounting brackets for surface and pole installations, mounting hardware, a BNC-BNC cable (32 ft / 10 m), and installation instructions.

Specifications

• Dimensions: 3 19/32" x 1 15/18" (91.6 mm x 49.5 mm)
• Weight: 4.5 oz (128 g)
• Temperature range: -22°F to 158°F (-30°C to 70°C)
• Color: Black
• Model: 010-12017-30

What's in the box

• GA 38
• Surface mounting bracket
• Pole mounting bracket
• Mounting hardware
• BNC-BNC antenna cable (32 ft / 10 m)
• Installation instructions