GARMIN GT20-TM, XDCR, 4-PIN, 16DEG, TILTED DOWNVU
The GARMIN GT20-TM is a 4-pin tilted DownVü transducer designed for sonar applications with a 16-degree beam angle. This unit is installed on fishing boats to enhance fish-finding capabilities and depth measurement.
Compatibility & Applications
- Wires to GARMIN chartplotters for sonar imaging.
- Mounts on transom or trolling motor of fishing boats up to 30 ft.
- Pairs with compatible GARMIN units for enhanced underwater visibility.
- Drops into replacement for older GARMIN transducers with 4-pin connectors.
- Integrates with NMEA 2000 networks for system-wide data sharing.
- Fits various boat types including bass boats and center consoles.
The unit is essential for optimizing sonar performance, particularly in shallow waters. Its 16-degree tilt angle facilitates better bottom tracking and target separation compared to standard transducers. For instance, when installed on a bass boat, it provides targeted imaging of underwater structures, enhancing fishing success.







