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The Garmin Ultra High-Definition Scanning Sonar System (Part Number: 010-02055-00, GCV™ 20) is a high-resolution sonar black-box module designed to deliver ultra-clear underwater imaging to compatible Garmin chartplotters and multifunction displays. Powered by advanced high-frequency ClearVü and SideVü scanning technologies, this network module provides crisp, photo-like target resolution of fish, submerged structures, and bottom contours around and beneath the vessel. Built with three network ports for effortless plug-and-play expansion across the Garmin Marine Network, the compact and waterproof GCV 20 system enables seamless network sharing of sonar data, structure maps, and waypoint locations across multiple networked displays.
This sonar system provides brilliant image clarity of structure and fish below your boat at greater depths than other high-frequency scanning sonars by putting more power on targets via a downward-facing element.
See stunningly clear images of structure and fish off to the sides of your boat. This makes it easy to scout a fishing area quickly, because you can see everything the first time with such amazing clarity.
General |
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| Dimension | 9.9″×7.6″×2.6″ (251 mm × 192 mm × 66 mm) |
|---|---|
| Weight | 1.86 lbs (845 g) |
| Water rating | IPX7 |
| Temperature range | From 5°F to 158°F (from -15°C to 70°C) |
Electrical Features |
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| Compass-safe distance | 10.2 in. (26 cm) |
|---|---|
Sonar Features |
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| Ultra High-Definition ClearVü | ✓ |
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| Ultra High-Definition SideVü | ✓ |
| Frequency | Ultra High-Definition ClearVü: 0.8 MHz (800 kHz), CHIRP range: 760-880 kHz
Ultra High-Definition SideVü: 1.2 MHz (1,200 kHz), CHIRP range: 1,060-1,170 kHz |
| Transmit power | 500 W rms |
| Maximum depth | 200′ Ultra High-Definition ClearVü
125′ to each side Ultra High-Definition SideVü, 250′ total, at a maximum depth of 30′ |
Transducer Support |
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| Ultra High-Definition ClearVü | ✓ |
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| Ultra High-Definition SideVü | ✓ |
Networking & Connections |
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| Garmin Marine Network Ports | 3 |
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