Introducció
This manual provides essential information for the proper installation, operation, and maintenance of your Garmin GT23-TH Mid-Band CHIRP DownVü Transducer. This thru-hull transducer is designed to provide clear sonar images and accurate temperature readings for marine applications. Please read this manual thoroughly before attempting installation or operation.

Figure 1: Garmin GT23-TH Mid-Band CHIRP DownVü Transducer. This image shows the black transducer body with the Garmin logo, connected to a metal thru-hull mounting bracket and cable.
Informació important de seguretat
ADVERTIMENT: Failure to heed these warnings may result in property damage, serious injury, or death.
- Always wear appropriate safety gear, including eye protection, when installing the transducer.
- Ensure the vessel is securely docked or on a trailer before beginning installation.
- Disconnect all power to the vessel's electrical system before connecting the transducer.
- Consult a qualified marine installer if you are unsure about any part of the installation process.
- Do not modify the transducer or its components. Unauthorized modifications can void your warranty and create safety hazards.
Què hi ha a la caixa
Your Garmin GT23-TH transducer package should include the following components:
- GT23-TH Mid-Band CHIRP DownVü Transducer with integrated cable
- Thru-hull mounting hardware (nuts, washers, gaskets)
- Instruccions d'instal·lació (aquest manual)
Configuració i instal·lació
The GT23-TH is a thru-hull mount transducer. Proper installation is critical for optimal performance and to prevent water intrusion into your vessel. If you are not comfortable with drilling holes in your boat, seek professional marine installation services.
Consideracions sobre la ubicació del muntatge:
- Choose a location on the hull where water flow is smooth and free from turbulence caused by propellers, strakes, or other hull features.
- Ensure there is sufficient clearance inside the hull for the transducer body, mounting hardware, and cable routing.
- The transducer should be mounted as vertically as possible to ensure accurate sonar readings.
Passos d'instal·lació (resum):
- Prepareu la superfície de muntatge: Clean the chosen area on the hull thoroughly.
- Perforar un forat pilot: Carefully drill a pilot hole from inside the hull, ensuring it exits in the desired location externally.
- Drill Main Hole: Use a hole saw of the appropriate size (refer to detailed template, not provided here) to drill the main mounting hole.
- Aplicar segellador: Apply marine-grade sealant around the transducer shaft and mounting surfaces to ensure a watertight seal.
- Inseriu el transductor: Carefully insert the transducer through the hull from the outside.
- Secure Internally: From inside the hull, place the rubber washer, metal washer, and nut onto the transducer shaft. Tighten securely, but do not overtighten.
- Cable de ruta: Route the transducer cable away from sources of electrical interference and sharp edges. Secure the cable with clamps.
- Connect to Sonar Module: Connect the transducer cable to the appropriate port on your compatible Garmin sonar module or chartplotter.
For detailed drilling templates and specific torque specifications, please refer to the full installation guide available on the Garmin support weblloc.
Instruccions de funcionament
Once installed and connected to a compatible Garmin device, the GT23-TH transducer will automatically provide sonar data. Refer to your Garmin chartplotter or sonar module's user manual for specific instructions on how to access and interpret the sonar views.
Característiques principals:
- Sonar tradicional CHIRP: Provides clear target separation and definition of fish and structure.
- CHIRP DownVü/SideVü: Offers photographic-like images of what is below and to the sides of your boat, allowing for detailed views of submerged objects, structure, and fish.
- Sensor de temperatura integrat: Provides accurate water temperature readings directly to your display.
Ensure your Garmin display unit is configured to recognize the GT23-TH transducer type for optimal performance. This setting is typically found in the sonar setup menu.
Manteniment
Regular maintenance ensures the longevity and optimal performance of your transducer.
- Neteja: Periodically clean the transducer face with mild soap and water to remove marine growth, dirt, or oil. Avoid abrasive cleaners or solvents that could damage the transducer material.
- Inspecció: Regularly inspect the transducer cable for any signs of wear, cuts, or kinks. Check the mounting hardware for tightness and corrosion.
- Hivernització: If operating in freezing conditions, ensure the transducer is not exposed to ice formation, which can cause damage.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| No Sonar Readings | Transducer not connected; power issue; incorrect settings on display. | Check cable connections; verify power to display; ensure transducer type is selected in sonar settings. |
| Poor Sonar Image Quality | Air bubbles under transducer; marine growth; electrical interference; incorrect mounting angle. | Clean transducer face; check mounting location for turbulence; ensure proper angle; check for nearby electrical noise sources. |
| Lectures de temperatura inexactes | Sensor fouled; wiring issue. | Clean transducer face; check cable for damage. |
If problems persist, contact Garmin Product Support for further assistance.
Especificacions
| Característica | Detall |
|---|---|
| Número de model | 010-12404-10 |
| Tipus de muntatge | Thru-hull |
| Freqüències de sonar | Mid-Band CHIRP (Traditional), CHIRP DownVü/SideVü |
| Característiques especials | CHIRP traditional sonar, CHIRP DownVü/SideVü, Built-in temperature sensor |
| Material | Plastic (transducer body) |
| Pes de l'article | 2.2 lliures (aprox. 1 kg) |
| Dimensions del producte | 11.02 x 11.02 x 11.02 inches (packaging/overall, actual transducer body is smaller) |
| UPC | 753759148607, 753759152932 |
Garantia i Suport
Garmin products are backed by a limited warranty. For full details regarding your warranty coverage, please refer to the warranty information included with your product or visit the official Garmin weblloc. Per obtenir assistència tècnica, registrar productes o comprar accessoris, visiteu garmin.com/support.





