Garmin GA38 GPS/GLONASS Antenna With 10M Cable Black Housing

The Garmin GA38 GPS/GLONASS Antenna with 10M Cable and Black Housing is a professional-grade external antenna designed for boaters and anglers who demand reliable satellite positioning in challenging water conditions. This robust antenna leverages dual-constellation satellite reception—combining GPS and GLONASS systems—to deliver faster acquisition times and improved accuracy in areas where single-system performance falls short.

Built with a water-resistant black polymer housing engineered to withstand saltwater spray, UV exposure, and the constant vibration of marine environments, the GA38 antenna delivers superior signal clarity without the multipath errors that plague low-profile designs. The 10-meter cable provides flexible mounting options—allowing placement at the highest point of your hardtop, tower, or console to maximize sky view and minimize signal obstruction from radar arches and antennas.

This antenna is the ideal upgrade for Garmin chartplotter and multifunction display users, providing critical advantages when navigating narrow channels or attempting to hold position over a marked structure in strong current. The integration of the GLONASS constellation means faster cold-start acquisition and maintained accuracy during periods when GPS satellite geometry is poor, ensuring a productive day on the water.