Professional All-in-One Transducer - Ultimate Scanning Sonar with CHIRP Technology

Experience the ultimate in marine sonar technology with the Garmin GT56UHD-TH thru-hull transducer, featuring Ultra High-Definition ClearVü and SideVü scanning sonars combined with high wide CHIRP traditional sonar. This professional-grade, all-in-one transducer delivers unparalleled versatility with multiple sonar frequencies and brilliant image clarity, ensuring you see everything below and around your boat for maximum fishing success.

Ultra High-Definition Scanning Technology

Revolutionary Ultra High-Definition scanning sonar provides brilliant image clarity of structure and fish below your boat at greater depths than other high-frequency scanning sonars. Advanced downward-facing elements put more power on targets, delivering stunningly clear images that reveal fish and structure with unprecedented detail and definition.

Advanced SideVü Sonar Enhancement

• 20% Greater Range: Enhanced 1,000 kHz frequency extends viewing distance
• Wide Coverage: See up to 500 feet on each side of your boat
• Crystal Clear Images: Ultra HD resolution reveals structure detail
• Multi-Frequency Operation: 455 kHz, 800 kHz, and 1,000 kHz capabilities
• Enhanced Target Separation: Distinguish individual fish and structure elements

Technical Specifications

High Wide CHIRP Traditional Sonar

Advanced high wide CHIRP traditional sonar delivers target separation like no other, providing remarkably clear target separation and definition up to 800 feet below your boat. The broad frequency sweep ensures optimal performance across varying depths and fishing conditions, making it ideal for both shallow and deep water applications.

Multi-Frequency Performance

• 455 kHz: Maximum depth penetration for deep water fishing
• 800 kHz: Optimal balance of depth and detail resolution
• 1,000 kHz: Maximum detail and clarity in shallow to moderate depths
• Automatic Optimization: System selects best frequency for conditions
• Real-Time Switching: Seamless frequency transitions while fishing

Thru-Hull Installation Excellence

Engineered specifically for thru-hull installation, the GT56UHD-TH provides superior performance through direct hull contact and optimal acoustic coupling. The thru-hull design eliminates air bubbles and interference while delivering maximum sonar performance across all frequencies and scanning modes.

High-Contrast Color Palettes

Advanced high-contrast vivid scanning sonar color palettes make it easier than ever to distinguish targets and structure. The enhanced color differentiation allows immediate identification of fish, bottom composition, structure types, and debris, enabling faster decision-making and more productive fishing time.

ClearVü Technology

• Photo-Like Images: Near photographic quality of underwater structure
• Enhanced Definition: Ultra HD resolution reveals fine detail
• Improved Target ID: Clearly distinguish fish from structure
• Wide Coverage: Comprehensive view directly below boat
• Deep Penetration: Maintain clarity at significant depths

Professional Installation Features

The thru-hull design provides permanent, professional installation with optimal hydrodynamic characteristics and minimal drag. Installation includes precision machined bronze housing for corrosion resistance and long-term durability in demanding marine environments.

Garmin Chartplotter Integration

Seamlessly integrates with compatible Garmin chartplotters and fish finders, delivering comprehensive sonar capabilities through a single transducer installation. The 12-pin connector ensures reliable data transmission and compatibility with advanced Garmin marine electronics systems.

All-Depth Performance

Multiple sonar frequencies ensure optimal performance regardless of fishing depth. From shallow water structure fishing to deep water applications, the GT56UHD-TH automatically optimizes frequency selection and power output for maximum effectiveness in any fishing scenario.