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The Garmin GT54UHD-TM is an all-in-one transom-mount transducer designed to provide high-resolution sonar imaging for coastal and offshore fishing. It combines three types of sonar into a single compact housing: High Wide CHIRP traditional sonar, Ultra High-Definition ClearVü, and Ultra High-Definition SideVü.
This unit is optimized for detail, allowing for the clear identification of fish structure, individual fish within bait balls, and objects like submerged branches or rocks. It is easy to install and comes with mounts for both the transom and trolling motors.
Ultra High-Definition Scanning: Provides 800 kHz ClearVü and 1,200 kHz SideVü for remarkably sharp imaging.
High Wide CHIRP: Operates in the 150-240 kHz range to deliver superior target separation and crisp arches.
Multiple Frequencies: Includes 455 kHz SideVü for extended range performance.
Compact Design: Versatile all-in-one solution that reduces the need for multiple transducers on the hull.
Integrated Sensors: Delivers real-time water temperature and depth data directly to the chartplotter.
| Feature | Specification |
| Manufacturer | Garmin |
| Model | GT54UHD-TM |
| Part Number | 010-12909-00 |
| Mounting Type | Transom or Trolling Motor |
| Connector | 12-pin (Orange) |
| Cable Length | 20 ft. (6 m) |
| Traditional Frequencies | CHIRP High Wide (150-240 kHz) |
| ClearVü Frequencies | UHD 800 kHz (760-880 kHz) |
| SideVü Frequencies | UHD 1,200 kHz (1020-1230 kHz) & CHIRP 455 kHz (425-485 kHz) |
| Transmit Power | Traditional: 350 W / Scanning: 350 W |
| Max Depth (Traditional) | 800 ft. (240 m) |
| Max Depth (ClearVü) | 200 ft. (60 m) |
| Max Reach (SideVü) | 500 ft. (152 m) @ 455 kHz / 125 ft. (38 m) @ 1,200 kHz |
| Beamwidth (Traditional) | 24°–16° |
| Beamwidth (ClearVü) | 0.94° x 60° @ 800 kHz |
| Beamwidth (SideVü) | 1.62° x 50° @ 455 kHz / 0.441° x 52° @ 1200 kHz |
| Supported Deadrise | 0° to 70° (Transom) |
| Sensors | Depth and Temperature |
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