Garmin GCV 20 Ultra HD Scanning Sonar Black Box
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Garmin GCV 20 Ultra HD Scanning Sonar Black Box Product Description
Imagine gliding across the water, your chartplotter revealing hidden underwater worlds in razor-sharp detail—fish schools darting through submerged structures, drop-offs teeming with potential hotspots. That's the game-changing power of the Garmin GCV 20 Ultra HD Scanning Sonar Black Box. This compact, networkable unit elevates your boating and fishing setup by delivering Ultra High-Definition ClearVü and SideVü scanning sonars, far surpassing standard high-frequency options in clarity and depth penetration.
Unlock Crystal-Clear Underwater Visions
Pair the GCV 20 with any compatible GT34UHD transducer (sold separately) to access frequencies from 800 kHz for ClearVü down-scanning to 1,200 kHz for SideVü side-scanning. With a robust 500-watt RMS transmit power, it paints brilliant images of bottom contours, wrecks, and baitfish aggregations. ClearVü mode shines downward, offering exceptional target separation at depths up to 200 feet—ideal for pinpointing trophy fish hugging the bottom in deeper waters. Switch to SideVü, and you'll scout expansive areas up to 125 feet on each side (250 feet total coverage), spotting ledges and schools without endless circling.
What sets this black box apart? Its CHIRP technology sweeps across narrow bands—760-880 kHz for ClearVü and 1,060-1,170 kHz for SideVü—delivering photo-like resolution that reveals fish orientation, bottom hardness, and even thermoclines. Anglers report finding structure details invisible to traditional 2D sonar, turning average outings into limit-filling days.
Seamless Networking for Multi-Screen Mastery
Equipped with three Garmin Marine Network ports, the GCV 20 shares sonar feeds effortlessly across multiple chartplotters. Helm mates can view the same UHD images simultaneously, while integrating with Panoptix live-scanning sonar creates a 360-degree awareness bubble. No more screen-splitting compromises—everyone stays informed, from the bow caster to the cockpit captain.
Built Tough for Real-World Waters
Rugged construction measures just 9.9 by 7.6 by 2.6 inches and weighs under 2 pounds, slipping easily into tight console spaces. IPX7 waterproofing shrugs off spray and submersion, thriving in temperatures from 5°F to 158°F. Input voltage flexibility (10-35V) suits everything from small skiffs to center consoles.
Effortless Setup for On-Water Focus
Installation boils down to mounting the black box, routing the included right-angle power and Ethernet cables, and connecting your transducer. Power it up, network via Ethernet, and calibrate through your chartplotter's intuitive menus. Most setups take under an hour, leaving more time for targeting those big bites. Pro tip: Position the transducer for minimal air entrainment, like mid-hull on stepped hulls, to maximize image quality.
Key Specs at a Glance
| Specification | Details |
|---|---|
| Dimensions | 9.9" L x 7.6" W x 2.6" D |
| Power Output | 500W RMS |
| ClearVü Depth | Up to 200' |
| SideVü Coverage | 125' per side (250' total) |
| Waterproof Rating | IPX7 |
Included essentials: GCV 20 unit, right-angle power cable, right-angle Ethernet cable, mounting hardware, and documentation. Transducer not included—choose based on your hull type for optimal performance.
Frequently Asked Questions
What transducers work with the Garmin GCV 20?
It's designed for GT34UHD transducers, offering three-array options for various hull materials and deadrise angles. Select the model matching your boat for peak UHD performance.
How does Ultra High-Definition ClearVü differ from standard downward sonar?
ClearVü uses higher frequencies and CHIRP sweeps for finer resolution, showing fish arches, bottom composition, and structure edges up to 200 feet—much sharper than traditional cone sonar.
Can I use the GCV 20 on multiple chartplotters?
Yes, its three Marine Network ports enable sharing UHD sonar images across networked Garmin displays, plus compatibility with Panoptix for comprehensive coverage.
Is the GCV 20 suitable for saltwater fishing?
Absolutely—IPX7 rating handles spray and submersion, while the wide temp range suits offshore adventures in harsh conditions.
What's the power draw, and does it need a dedicated battery?
It runs on 10-35V DC from your boat's system with efficient 500W output—no extra battery required for most setups.
How easy is mounting the black box?
Very—compact size fits consoles or bulkheads with included hardware. Ethernet and power cables have right-angle connectors for clean routing.
Elevate your angling edge with sonar that doesn't just detect—it reveals. From wreck diving to tournament trails, the GCV 20 delivers the detail-driven advantage serious boaters demand.
The easy-to-install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models to see stunningly clear Ultra High-Definition ClearVü and Ultra High-Definition SideVü scanning sonars — with frequencies ranging from 0.8 Mega Hertz to 1.2 Mega Hertz to your compatible chartplotter. And you can share sonar images seamlessly across multiple networked chartplotters as well as networking Panoptix ™ all-seeing sonar. It includes a max power output of 500 watts. This mode 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. This mode delivers 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.
Garmin 100205510 Attributes
- Size: 9.9 Inch Length X 7.6 Inch Width X 2.6 Inch Depth
- Frequency: 800 kHz ClearVü/ 1200 kHz SideVü
- Input Voltage: 10 To 35 Volt
- Temperature Range: 5 Degree Fahrenheit To 158 Degree Fahrenheit Operating Temperature
- Waterproof: IPX7 Rating Waterproof
- Includes: With Right-Angle Power Cable/ Right-Angle Ethernet Cable/ Mounting Hardware
Garmin 100205510 Features & Benefits
- Stunningly Clear Ultra High-Definition ClearVü And Ultra High-Definition SideVü Scanning Sonars
- Provides Brilliant Image Clarity Of Structure And Fish Below Your Boat At Greater Depths Than Other High-Frequency Scanning Sonars
- Water Rating: IPX7
- Easy To Install
- Limited 2 Year Warranty
Garmin 100205510 Installation Instructions
Garmin 100205510 Warranties
Garmin 100205510 Technical Bulletins
GCV 20 Ultra HD Scanning Sonar Black Box
Add Ultra High-Definition Scanning Sonar to Your Compatible Chartplotter
The easy-to-install, networkable GCV 20 sonar black box allows you to redefine clarity and detail. Add any of the 3 GT34UHD transducer models to see stunningly clear Ultra High-Definition ClearV and Ultra High-Definition SideV scanning sonars with frequencies ranging from 0.8 MHz (800 kHz) to 1.2 MHz (1,200 kHz) to your compatible chartplotter. And you can share sonar images seamlessly across multiple networked chartplotters as well as networking Panoptix all-seeing sonar. It includes a max power output of 500 watts.
Ultra High-Definition ClearV Scanning
This mode 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.
Ultra High-Definition SideV Scanning
This mode delivers 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.
Specifications:
General:
- Physical dimensions: 9.9"×7.6"×2.6" (251mm × 192mm × 66mm)
- Weight: 1.86lbs (845g)
- Water rating: IPX7
- Garmin Marine Network ports: 3
- Temperature range: From 5°F to 158°F (from -15°C to 70°C)
Sonar Features & Specifications:
- Frequencies supported:
- Ultra High-Definition ClearV: 0.8 MHz (800 kHz), CHIRP range: 760-880 kHz
- Ultra High-Definition SideV: 1.2 MHz (1,200 kHz), CHIRP range: 1,060-1,170 kHz
- Transmit power: 500W rms
- Maximum depth:
- 200' Ultra High-Definition ClearV
- 125' to each side Ultra High-Definition SideV, 250' total
What's In The Box?:
- GCV 20
- Right-angle power cable
- Right-angle ethernet cable
- Mounting hardware
- Documentation
Garmin Ultra High-Definition Scanning Sonar System GCV™ 20 Scanning Sonar Black Box Without Transducer
Model: 010-02055-10- Ultra High-Definition scanning sonar system provides crisp images of structure and fish in stunning detail
- Ultra High-Definition ClearVü sonar provides brilliant image clarity of structure and fish up to 200’ deep below your boat
- Ultra High-Definition SideVü sonar delivers stunningly clear images of structure and fish off to the sides of your boat
- Share seamlessly across multiple networked chartplotters as well as networking Panoptix™ all-seeing sonar
Clarity and detail are redefined with the Ultra High-Definition scanning sonar system. Using an easy-to-install, networkable GCV 20 sonar black box with an included three-array GT34UHD transducer, now you can get scanning sonar images in ultra high-definition. You see everything below and off to the sides of your boat in amazingly sharp, crisp detail.
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.
You can share your Ultra High-Definition scanning sonar images seamlessly across multiple networked chartplotters. You can also add optional Panoptix all-seeing sonar to your networked sonars.
Specifications| General | |
| Water rating | IPX7 |
| Garmin Marine Network™ ports | 3 |
| Temperature range | From 5°F to 158°F (from -15°C to 70°C) |
| Sonar Features & Specifications | |
| Frequencies supported | 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 |
| Dimensions | 9.9" 7.6" 2.6" (251 mm 192 mm 66 mm) |
What's in the Box:
- GCV 20 Sonar Black Box
- Right-angle power cable
- Right-angle ethernet cable
- Mounting hardware
- Documentation
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Frequently Asked Questions (FAQ) About Garmin GCV 20 Ultra HD Scanning Sonar Black Box
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Who is the Garmin?
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Is this product waterproof?
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Garmin GCV 20 Ultra HD Scanning Sonar Black Box Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Garmin |
| Categories v2: |
Marine Navigation & Instruments | Network Cables & Modules |
| Category v1: |
FISHFINDERS |
| UPC: |
753759206321 |
| Product Brochure: |
Garmin GCV 20 Ultra HD Scanning Sonar Black Box User Reviews
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