Garmin GCV 20 Ultra HD Scanning Sonar Black Box w/GT34UHD-TM Ultra HD Transom Mount Transducer

The GCV™ 20 Ultra HD Scanning Sonar Black Box, paired with the GT34UHD-TM Ultra HD Transom Mount Transducer, delivers exceptional sonar imaging for your marine adventures. Designed for effortless installation and seamless network integration, this advanced system enhances your compatible chartplotter with crystal-clear ClearVü and SideVü scanning capabilities, ensuring you never miss a detail beneath or around your vessel.

Enhance Your Chartplotter with Ultra High-Definition Scanning Sonar

The GCV 20 sonar black box redefines clarity and detail in marine sonar technology. Compatible with various GT34UHD transducer models, it enables stunningly clear Ultra High-Definition ClearVü and SideVü scanning sonar. Operating at frequencies between 0.8 MHz (800 kHz) and 1.2 MHz (1,200 kHz), it ensures precise and detailed imaging. Additionally, sonar images can be effortlessly shared across multiple networked chartplotters or integrated with the Panoptix™ all-seeing sonar system. With a maximum power output of 500 watts, the GCV 20 provides robust performance for all your marine needs.

Advanced Scanning Modes

Ultra High-Definition ClearVü Scanning

Experience brilliant image clarity of underwater structures and fish below your boat at greater depths compared to other high-frequency scanning sonars. The downward-facing element concentrates more power on targets, delivering enhanced visibility beneath your vessel.

Ultra High-Definition SideVü Scanning

Obtain stunningly clear images of structures and fish on either side of your boat. This mode enables rapid scouting of fishing areas with unparalleled clarity, ensuring you see everything clearly on the first pass.

Specifications

General Specifications

Physical Dimensions	9.9" × 7.6" × 2.6" (251mm × 192mm × 66mm)
Weight	1.86 lbs (845g)
Water Rating	IPX7
Garmin Marine Network™ Ports	3
Temperature Range	From 5°F to 158°F (-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	500W rms
Maximum Depth	ClearVü: 200' down SideVü: 125' sides, 250' total

What's Included

• GCV 20 Sonar Black Box
• Right-Angle Power Cable
• Right-Angle Ethernet Cable
• Mounting Hardware
• Documentation

GT34UHD-TM Ultra HD Transom Mount Transducer

The GT34UHD-TM Ultra HD Transom Mount Transducer complements the GCV™ 20 sonar module by providing exceptional ClearVü and SideVü scanning sonar images. Equipped with three arrays, including a downward-facing element, it operates across frequencies from 0.8 MHz to 1.2 MHz, ensuring high-resolution imaging of underwater environments.

Transducer Specifications

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
Power	500W
Beamwidth	ClearVü: 0.74° x 46° SideVü: 0.44° x 55°
Maximum Depth	ClearVü: 200' down SideVü: 125' sides, 250' total
Depth/Speed/Temperature	Depth and Temperature
Number of Pins	12-pin
Cable Length	20'
Supported Deadrise/Transom Angles	0°-70° degree transom

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Download the Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.