Garmin

Garmin GT34UHD-TM Ultra HD Transom Mount Transducer

SKU: 70794 · UPC: 753759206338 · MPN: 010-12776-00
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02 · Overview

Garmin GT34UHD-TM Ultra HD Transom Mount Transducer — Product description

Upgrade your boating experience with the Garmin GT34UHD-TM, a powerhouse transom-mount transducer designed for anglers who demand crystal-clear underwater visuals. This unit transforms your compatible Garmin chartplotter—paired with a GCV 20 sonar module—into a fishing intelligence hub. Imagine pinpointing hidden structures, tracking fish movements, and scouting hotspots with unprecedented detail, all from a rugged, easy-to-install setup that handles real-world marine conditions.

Unlock Superior Scanning with Ultra High-Definition Technology

The heart of this transducer lies in its dual Ultra High-Definition scanning modes: ClearVü and SideVü. ClearVü shoots downward-focused beams that deliver razor-sharp images of the bottom and anything hovering above it, reaching depths up to 200 feet. It's like having a high-res camera under your hull, revealing submerged rocks, drop-offs, and schools of fish that traditional sonar might blur into nothingness.

Switch to SideVü for wide-angle side scans up to 125 feet on each side (250 feet total coverage), capturing stunning side profiles of wrecks, reefs, and bait balls without repositioning your boat. With frequencies tuned to 800 kHz for ClearVü (CHIRP span of 760-880 kHz) and 1200 kHz for SideVü (CHIRP 1060-1170 kHz), you'll cut through murky water for images that feel almost photographic.

Built Tough for Everyday Anglers

Engineered with a 500-watt power rating, narrow beamwidths (0.74° x 46° for ClearVü and 0.44° x 55° for SideVü), and a 20-foot cable, this 12-pin transducer mounts seamlessly on transoms angled from 0° to 70°. It also senses depth and water temperature, giving you a complete environmental snapshot. Whether you're chasing bass in shallow bays or trolling offshore, its three-array design—including a downward-facing element—ensures reliable performance season after season.

  • Versatile Coverage: Downward and sideways scanning for full 360-degree awareness.
  • Quick Setup: Transom mount simplifies installation; position it just above the hull-water line for optimal readings, avoiding turbulence from props or strakes.
  • Pro Tip: Adjust the running angle slightly upward (about 1-3°) during testing to compensate for hull lift at speed, maximizing bottom lock.

Real-World Advantages for Serious Fishermen

Fishermen swear by this transducer for its ability to reveal fish-holding sweet spots others miss. In cluttered weed beds, spot crappie suspended mid-water. Around docks, map precise contours for jigging. During tournaments, SideVü's wide sweep lets you graph entire shorelines on the fly, saving precious daylight. Paired with Garmin's ecosystem, it overlays sonar data on charts for intuitive navigation—no more guesswork.

Backed by Garmin's reputation for durability, it withstands saltwater exposure and rough handling. Focus on the bite, not the gear.

Key Technical Highlights

Spec Details
Power Output 500 watts
Max Depth (ClearVü) 200 feet downward
Max Depth (SideVü) 125 feet per side (250 feet total)
Beamwidth (ClearVü) 0.74° x 46°
Beamwidth (SideVü) 0.44° x 55°
Cable Length 20 feet
Supported Transom Angle 0° to 70°

Frequently Asked Questions

What chartplotters work with the Garmin GT34UHD-TM transducer?

It pairs seamlessly with Garmin chartplotters via the GCV 20 sonar module, delivering UHD ClearVü and SideVü images on compatible units.

How deep can the Ultra High-Definition SideVü scan?

SideVü reaches 125 feet to each side for 250 feet total coverage, ideal for mapping broad areas quickly.

Is this transducer suitable for saltwater fishing?

Yes, its robust build handles marine environments, including saltwater, with reliable performance over time.

Does it measure water temperature?

Absolutely—it includes depth and temperature sensing for better fishing decisions.

What's the best way to mount this on a boat?

Mount on the transom, centered and slightly above the hull bottom. Test at various speeds to fine-tune the angle for clear readings.

Can it handle steep transom angles?

Designed for 0° to 70° transom angles, making it versatile for most boat hulls.

How does UHD differ from standard scanning sonar?

UHD uses higher frequencies and CHIRP tech for finer resolution, showing fish and structure with photo-like clarity at greater depths.

Garmin make products that are engineered on the inside for life on the outside. We bring GPS navigation and wearable technology to the automotive, aviation, marine, outdoor and fitness markets. We believe every day is an opportunity to innovate and a chance to beat yesterday. We offer products with essential utility, leading-edge technologies, compelling features, and exceptional ease-of-use to create clear differentiators our customers appreciate and desire.

Garmin 101277600 Attributes

  • Mounting Location: Transom Mount
  • Number Of Pins: 12 Pin
  • Depth: 200 Feet For Ultra High-Definition ClearVü And 125 Feet For Ultra High-Definition SideVü
  • Power Rating: 500 Watt
  • Frequency Range: 800 kHz For Ultra High-Definition ClearVü And 1200 kHz For Ultra High-Definition SideVü
  • Supported Angle: 0 To 70 Degree Transom Angle
  • Cable Length: 20 Feet

Garmin 101277600 Features & Benefits

  • Ultra High-Definition Sonar System Transom Mount Transducer
  • Ultra High-Definition ClearVu Scanning Mode Provides Brilliant Image Clarity Of Structure And Fish Below Your Boat At Greater Depths Than Other High-Frequency Scanning Sonars
  • Ultra High-Definition SideVu Scanning Mode Delivers Stunningly Clear Images Of Structure And Fish Off To The Sides Of Your Boat
  • Makes It Easy To Scout A Fishing Area Quickly, Because You Can See Everything The First Time With Such Amazing Clarity
  • Limited 2 Year Warranty

Garmin 101277600 Installation Instructions

Garmin 101277600 Warranties


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


"Add stunningly clear Ultra High-Definition ClearV and Ultra High-Definition SideV scanning sonar images to your compatible chartplotter. Plug directly into your 8600xsv or ECHOMAP Ultra series chartplotter or use the GCV 20 sonar module to display on other compatible chartplotters. 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)."
SKU: NVN-70794
MPN: 010-12776-00
UPC: 753759206338
03 · The numbers

Technical specifications

BrandGarmin
ModelGarmin GT34UHD-TM Ultra HD Transom Mount Transducer
SKU / MFR#70794

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04 · Before you buy

Frequently asked questions

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05 · Customer voices

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