Garmin GT24UHD-TM szonda – hátsó tábla UHD ClearVü

The Garmin GT24UHD-TM transducer is designed to be mounted on the transom of your boat or on a trolling motor. Mounting hardware for both options is typically included.

For installation on the transom, you will need the following tools:

A #2 Phillips screwdriverA drillBits: 4 mm (5/32 in), 3.2 mm (1/8 in), and 25 mm (1 in)Masking tapeMarine sealant

Transom-mounted transducers such as the GT24UHD-TM are compatible with all hull materials. However, for optimal performance, they are not recommended for sailboats due to excessive heel, nor for vessels with stepped hulls.

To reduce interference with the depth sounder signal, mount it away from common sources of interference, including:

Propellers, to avoid propeller wash.Electronic devices such as engines, radar, and audio equipment.Hull features (steps, strakes, ribs) that can create turbulence.Other transducers (space them at least 60 cm apart if they operate on the same frequency).The vessel’s machinery, wind, waves, and rain.Ensure the sonar and other equipment are properly grounded.

Depth sounders mounted on the transom, such as the GT24UHD-TM, perform best at speeds below 34 mph (about 55 km/h) and when installed away from turbulence.

Yes, if your boat spends a significant amount of time in the water, it is recommended to apply a water-based antifouling paint to the transducer and mounting hardware to prevent marine growth. Before application, lightly sand the transducer and hardware with a fine abrasive pad, then clean them with isopropyl alcohol.

Warning: Do not use acetone or acetone-based products on the transducer, as this will damage the plastic housing.

The transducer should be mounted as close as possible to the centerline of the transom, but at least 38 cm (15 inches) from the propeller. It is critical to mount it away from the propeller wash to avoid interference and potential damage to both the transducer and the propeller.

If your propeller rotates clockwise when the boat is moving forward, it creates turbulence on the port (left) side. In this case, you should mount the transducer on the starboard (right) side of the boat, facing forward.

If your propeller turns counterclockwise when the boat is moving forward, it creates turbulence on the starboard (right) side. In this case, you must mount the depth sounder on the port (left) side of the boat, facing forward.

The transducer should protrude by approximately 3.5 mm (0.125 in) below a fiberglass hull or 10 mm (0.375 in) below an aluminum hull. The goal is for it to be parallel to the waterline and in direct, unobstructed contact with smooth water for optimal performance.

No, it is strongly discouraged to cut the fishfinder transducer cable. Cutting the transducer cables voids the product warranty.

You must route the transducer cable away from ignition wires, batteries and wiring harnesses, trolling motor batteries and wires, and high-energy wires such as those from the radar, audio amplifier and autopilot pump. If the transducer cable must cross a power cable, route the cables at 90 degrees.

After installation, test the transducer in open water, free of obstacles. Power on the chartplotter and drive the boat at low speed, then gradually increase. Observe the chartplotter. If the sonar signal is suddenly lost or severely degraded, note the speed at which this occurs. Return to that speed and perform moderate turns in both directions while observing the chartplotter. If the signal improves when turning, adjust the transducer so it protrudes 3 mm (1/8 in) further 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.

Yes, you must update the software of your Garmin chartplotter when installing this transducer. For update instructions, refer to your chartplotter's user manual.

Yes, the GT24UHD-TM transducer is designed to be installed on a trolling motor. The kit includes the mounting hardware required for this setup.

To attach the transducer to the trolling motor, insert the hose clamps through the slots in the transducer mount until equal lengths protrude on both sides. Place the mount against the trolling motor body with the narrow end of the transducer pointing away from the propeller. Secure the hose clamps around the trolling motor body and tighten them. Position the transducer so that it is parallel to the bottom when in use. Use waterproof tape (not included) to secure the transducer cable to the trolling motor shaft, avoiding pinching or excessive bending.

Yes, the transducer is supplied with a mounting template in the product box. It is recommended to use this supplied template rather than printing your own, as an incorrect printout could result in an incorrectly sized cutout on your boat’s mounting surface.

The "UHD" in the GT24UHD-TM name stands for "Ultra High Definition". This indicates that the transducer is capable of providing very detailed sonar images, offering exceptional clarity below and to the sides of the boat, particularly with Garmin's ClearVü technologies.

Yes, transom-mounted transducers such as the GT24UHD-TM are suitable for towed boats, especially when used with an optional folding bracket. However, they are vulnerable to external damage from trailers or underwater obstructions, so caution is advised.

The Garmin GT24UHD-TM transducer is primarily designed for mounting on the transom of your boat. It is attached to the outside of the transom using a bracket and screws.

Additionally, this transducer can also be installed on a trolling motor. For this, it is secured to the motor body using hose clamps (not included for electric motor mounting).

For both types of installation, it is crucial to follow the installation instructions to ensure optimal performance and avoid interference.