Garmin GT22HW-TM CHIRP / ClearVü hátsó táblás (8 pólusú) szonda

The Garmin GT22HW-TM transducer integrates two main sonar technologies:

Traditional CHIRP sonar (wide and high frequency)CHIRP ClearVü sonar

The CHIRP sonar of the GT22HW-TM transducer operates on a wide high CHIRP frequency range from 150 to 240 kHz, with a power output of 250 W.

The maximum depth this transducer can reach is:

244 meters (800 feet) in freshwater for traditional CHIRP sonar. 152 meters (500 feet) in freshwater for CHIRP ClearVü sonar.

Yes, the Garmin GT22HW-TM transducer is equipped with an integrated fast-response water temperature sensor.

The GT22HW-TM transducer is made of plastic, making it suitable for transom or electric motor mounting.

The Garmin GT22HW-TM transducer uses an 8-pin connector to connect to your display.

To install the transducer on a transom, you will need the following tools:

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

This equipment should be installed by a qualified marine installer. This ensures optimal performance and helps prevent damage to your boat.

To prevent marine growth during prolonged water exposure, you must:

Lightly sand the transducer and mounting hardware with fine abrasive pads. Wipe the transducer and mounting hardware with isopropyl alcohol. Apply water-based antifouling paint to the transducer and mounting hardware. Warning: Never use acetone or acetone-based products on the transducer, as it will damage the plastic housing.

For optimal performance, the transducer must be installed:

Parallel to the waterline.At least 38 cm (15 in) from the propeller.As close as possible to the centerline of the transom.In a clean, non-turbulent water area, away from seams, fittings, water intakes or discharges, and anything that could create air bubbles.

To ensure optimal performance with minimal noise and interference, route the depth sounder cable away from the following:

Ignition wiresBatteries and service wiringBatteries and trolling motor wiringHigh-energy wires (radar, audio amplifier, autopilot pump)If the depth sounder cable must cross a power cable, try to orient them at 90 degrees.

If your depth sounder is spraying excessive water, check the mounting considerations. Adjust the position of the transducer if necessary to eliminate splashing, ensuring it is properly aligned and submerged.

Yes, the Garmin GT22HW-TM transducer is designed to be mounted on a transom or an electric motor.

No, it is strongly advised not to cut the cables connected to the transducer. Cutting the transducer cables will void your warranty.

To avoid interference from the propeller wash:

If your propeller rotates clockwise (viewed from the stern), mount the transducer on the starboard (right) side. If your propeller rotates counterclockwise, mount the transducer on the port (left) side.The transducer must be mounted at least 38 cm (15 in) from the propeller.

To reduce electromagnetic interference (EMI):

Ensure proper grounding of your sonar and other equipment. You can install a ferrite bead on the transducer cable. Route the transducer cable away from other power cables. If the transducer cable must cross a power cable, orient the cables at 90 degrees. You can apply EMI tape to insulate the cables.

To test the installation:

Put the boat in the water and power on the display. Drive the boat at low speed, then gradually increase while monitoring the display. If the sonar signal is lost or degraded, note the speed. Return to this speed and make moderate turns in both directions. If the signal improves while turning, adjust the transducer so it extends 3 mm (1/8 in) lower 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. Important: The transducer must be submerged to function properly. Check for leaks around the screw holes below the waterline before leaving the boat in the water.

The GT22HW-TM transducer, designed for transom mounting, is compatible with all hull materials, including fiberglass and aluminum.

Yes, you must update the software of your Garmin display when installing this transducer to ensure compatibility and optimal performance. Refer to your display’s user manual for update instructions.