SKU: 16901764003

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

$268.92 $298.80
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Description

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

GCV™ 20 Ultra HD Scanning Sonar Black Box with GT34UHD-TM Ultra HD Transom Mount Transducer

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 ClearVü and Ultra High-Definition SideVü 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 ClearVü 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 SideVü 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 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: 
  • 200' Ultra High-Definition ClearVü
  • 125' to each side Ultra High-Definition SideVü, 250' total

What's In The Box?:

  • GCV 20
  • Right-angle power cable
  • Right-angle ethernet cable
  • Mounting hardware
  • Documentation

GT34UHD-TM Ultra HD Transom Mount Transducer

Ultra High-Definition Sonar System Transom Mount Transducer
Add stunningly clear Ultra High-Definition ClearVü and Ultra High-Definition SideVü scanning sonar images to your compatible chartplotter via the GCV™ 20 sonar module. It includes 3 arrays, including a downward-facing element, with frequencies ranging from 0.8 MHz (800 kHz) to 1.2 MHz (1,200 kHz).

Ultra High-Definition ClearVü 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 SideVü 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:

  • 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:
  • Ultra High-Defintion ClearVü: 0.74° x 46°
  • Ultra High-Defintion SideVü: 0.44° x 55°
  • Maximum depth
  • Ultra High-Defintion ClearVü: 200' down
  • Ultra High-Defintion 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 go to P65Warnings.ca.gov.


Manufacturer : Garmin
Manufacturer Part No : 010-02055-00
UPC : 753759206307
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 16901764003

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Verified Purchase
John J. Shea
Houston, US
★★★★★ 5
A thoroughly-researched, thoughtful, and nuanced work about the 1692 Salem withcraft panic.
Format: Paperback
This graphic novel recounts the 1692 Salem (Massachusetts) witchcraft panic that engulfed Salem, Salem Village (now Danvers), and adjacent communities. About two dozen men and women were convicted and hanged, one was pressed to death (tortured) to try to force him to acknowledge the Court’s authority. That man was Giles Corey, aged 80. The book focuses on him, but it covers others among the accused and executed as well as on the judges, politicians, and other involved. (No so much on the accusers and their motives.). The narrative plays out chronologically with interstitial vignettes in which 19th Century literary figures Nathaniel Hawthorne and Henry Wadsworth Longfellow wander around Salem during the 1800s discussing the trials and their legacy. (Hawthorne lived in Salem for a time and was a descendant or the Court of Oyer and Terminer Judge Hathorne.). The work concludes with a chapter, More Wonders of the Invisible World, that follows how Salem developed economically up to the present day in which witchcraft-related Halloween tourism turns Salem town into arguably the least attractive “tourist attraction” on Cape Ann. (Do not skip this chapter, it is engrossing.) An extensive series of endnotes provide scholarly references and background information. The artwork veers back and forth between caricatures (the 17th century events) and realism (19th century and onwards). In both cases the line art is exquisite. The text includes quotes from transcripts of the trials and other contemporary documents as well as fictional dialog. Wickey worked on this book for more than a decade, and it shows in his thorough scholarship. This is, in all seriousness, Pulitzer/Eisner-level work. Wickey was born in Beverly and resides on Cape Ann. Most of us born and raised on the “North Shore” learn about the Salem witchcraft panic in high school -often as a cautionary tale about politics, spectral evidence, and what we would today call “lawfare.” I thought I knew a fair amount about the 1692 panic, but I learned something new with nearly every other page. I was especially glad to see Wickey cover now-debunked ergot-poisoning theory and that he dismissed the vile slander that some among the convicted and executed were actually witches. There’s nothing really “missing” from the book, though one wishes one could learn more about the fates of the accusers other than Ann Putnam. That their motives appear to have been “sport” is bone-chilling fully three centuries later. Read her "apology" years later and try not to think, "psychopath." At 500 plus pages, it's too long to read at one setting, but it is a pleasure to read at shorter intervals.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
S
Verified Purchase
Salvatore P. Vasta
Lowell, US
★★★★★ 5
Masterpiece
Format: Kindle
It has been said that any work of literature should be gauged upon how much the work makes the reader think. Ben Wickey has certainly achieved this - in spades - as one of the “civilised” world’s most frightening episodes is revisited with respect and thoughtfulness on the human condition.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
J
Verified Purchase
Jessica Richart
Battle Creek, US
★★★★★ 5
Books
Format: Paperback
I bought this book for my husband as a Christmas present and he enjoyed the book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
M
Molly H
West Palm Beach, US
★★★★★ 4
The Tale of Salem
Format: Paperback
If you’re not familiar with the history of Salem and its witch trials, this graphic novel is a solid entry point. The author, while not a historian, clearly put in the work—spending time in Salem, connecting with residents, and striving to honor both the historical record and the modern-day sentiments of those who live with that legacy. His goal was to get the facts right while also capturing how the people of Salem view their own history, and I think he succeeded in that respect. The artwork fits the subject matter well. We often imagine people of that time as living hard, joyless lives, and the art conveys that sense of austerity. The mix of black-and-white and color panels is sometimes striking—there are moments where the color really enhances the impact of a scene—but other times I wasn’t sure what it added. Still, the black-and-white aesthetic ties neatly into the grim tone of the era. That said, the book is quite long, and if you’re already well-versed in the Salem Witch Trials, you may not learn much new in terms of facts. But if you enjoy studying the trials or want to explore the story through a different medium, this graphic novel is definitely worth picking up. For me, it landed at a 3.5 stars, which I’ll round up to 4 (since I usually do that when posting on review sites).
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Reviewed in the United States on November 6, 2025
P
Verified Purchase
P. M. Cooper
Pawtucket, US
★★★★★ 5
Salem's a Lot
Format: Paperback
Great comic that deserves to be at the top end of best of 2025 lists. Intensively researched with multiple art approaches to the varied settings. It also made me want to take a trip to Salem in the off-season. A virtuosic undertaking!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026

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