Sonda GT54UHD-TM – zadní panel UHD ClearVü/SideVü

The Garmin GT54UHD-TM transducer is an all-in-one Ultra High Definition (UHD) transducer that integrates traditional CHIRP sonar, ClearVü and SideVü technologies.

The UHD ClearVü CHIRP sonar of this depth sounder uses a frequency of 800 kHz, with a range from 760 to 880 kHz.

The UHD SideVü CHIRP sonar of this depth sounder uses a frequency of 1200 kHz, with a range from 1020 to 1230 kHz.

The UHD SideVü offers a side-scanning range of 125 feet (250 feet total) with a maximum depth of 30 feet (approximately 9 meters).

The GT54UHD-TM fishfinder’s traditional CHIRP has a power output of 350W and a frequency range of 150–240 kHz, reaching a maximum depth of 800 feet (approximately 244 meters).

The Garmin GT54UHD-TM transducer is designed for transom mount or trolling motor mount installation.

Transducers mounted on the transom, such as the GT54UHD-TM, work with any hull material.

No, the GT54UHD-TM transducer is not recommended for sailboats due to excessive heel, nor for stepped hulls. For stepped hulls, it should be installed at the lowest point before the first step.

If your propeller turns clockwise, creating turbulence on the port side (left), the transducer must be mounted on the starboard side (right). If your propeller turns counterclockwise, creating turbulence on the starboard side (right), the transducer must be mounted on the port side (left).

For installation on the transom, you will need:

A Phillips screwdriver size #2
A drill
Drill bits of 4 mm (5/32 in), 3.2 mm (1/8 in) and 25 mm (1 in)
Masking tape
Marine sealant

No, it is imperative not to cut the transducer cables. Cutting the transducer cables voids your warranty.

Yes, if your boat spends a lot of time in the water, it is recommended to apply a water-based antifouling paint on the transducer and mounting hardware to prevent marine growth. It is important not to use acetone or acetone-based products, as this would damage the transducer’s plastic housing.

If you have a 4-pin cable, use a 16 mm (5/8 in) drill bit. If you have an 8- or 12-pin cable, use a 25 mm (1 in) drill bit. Ensure you choose a location well above the waterline and apply marine sealant.

Test the installation in open water:

Launch the boat and power on the chartplotter. Drive the boat at low speed. If the depth sounder is working correctly, gradually increase speed while monitoring the chartplotter. If the signal is lost or degraded, note the speed. Return to this speed and perform moderate turns in both directions. If the signal improves while turning, adjust the transducer so it extends 3 mm (1/8 in) deeper below the transom. Repeat until the degradation is eliminated. If the signal does not improve, move the transducer to another location on the transom and repeat the test. Also check for leaks around screw holes below the waterline.

Yes, you must update the software of your Garmin chartplotter when you install this device to ensure compatibility and optimal performance. The update instructions are in your chartplotter's user manual.

Yes, the GT54UHD-TM transducer is designed to be installed on an electric motor. You will need to use the supplied hose clamps to secure it to the motor housing and route the cable to prevent it from being pinched during motor deployment or stowage.

Yes, you can use multiple transducers, but it is recommended to mount them at least 60 cm (24 inches) apart to avoid interference. If the transducers have the same frequency, they will interfere if used simultaneously. Transducers with different frequencies can be used at the same time without issue.