The Garmin GA 38 is a dual-system external antenna that receives both GPS and GLONASS satellite signals, expanding compatibility and reception potential beyond standard GPS-only antennas. Its low-profile, fully waterproof housing supports three distinct mounting configurations — pole, surface, or under-deck on fiberglass — giving installers genuine flexibility across a wide range of vessel layouts.

Specifications:

• Dimensions (D x H): 3-19/32" x 1-5/18" (91.6 x 49.5 mm)
• Weight: 7.1 oz (201 g)
• Operating Temperature Range: -22°F to 176°F (-30°C to 80°C)
• Case Material: Fully gasketed, high-impact plastic alloy, waterproof to IPX7

In the Box:

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