Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI
Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI Product Description
Upgrade your fishing setup with the Humminbird XTM-9-HW-MDI-75-T, a high-performance trolling motor transducer designed specifically for HELIX 7 and 8 MEGA DI series units. This powerhouse delivers stunning MEGA Down Imaging alongside Dual Spectrum CHIRP sonar, giving you an edge on the water by revealing fish-holding structures, bait schools, and bottom contours with unprecedented clarity. Anglers swear by its ability to cut through murky water and provide real-time intel that turns good days into trophy hauls.
Key Features That Set It Apart
Crafted from rugged composite materials, this transducer withstands the rigors of daily use on your trolling motor. The impact-release mounting bracket ensures it stays secure yet detaches easily during accidental strikes against logs or rocks, saving you time and frustration. A built-in temperature sensor adds another layer of insight, helping you track water conditions that influence fish behavior right alongside your sonar readings.
- Dual Spectrum CHIRP Sonar: Full range (150-220 kHz), Narrow (180-240 kHz), Wide (140-200 kHz) for versatile 2D imaging up to 1200 feet deep—perfect for scanning vast areas or pinpointing tight spots.
- MEGA Down Imaging: Operates at 455 kHz (440-500 kHz band, max 350 ft) and MEGA DI (1075-1150 kHz, max 125 ft), delivering photo-like detail of what's directly beneath your boat.
- 7-Pin Connectivity: Seamless plug-and-play with compatible HELIX models, including HELIX 7 CHIRP MEGA DI GPS G3/G3N and HELIX 8 CHIRP MEGA DI GPS G3N.
- 20-Foot Cable: Ample length for flexible routing on most bass boats or multi-species rigs without signal loss.
Why Anglers Choose This Trolling Motor Transducer
Unlike traditional transom-mount options, mounting on your trolling motor positions the XTM-9-HW-MDI-75-T forward for optimal down imaging while you're actively fishing. This setup shines in shallow to mid-depth waters, where MEGA DI uncovers submerged vegetation, drop-offs, and suspended crappie or walleye that side imaging might miss. The Dual Spectrum CHIRP excels at separating fish from clutter, even in heavy cover, making it a game-changer for tournament pros and weekend warriors alike.
Real-world performance? Expect sharper target separation than standard 83/200 kHz setups, with CHIRP's continuous frequency sweep filling in gaps for smoother scrolling sonar returns. Pair it with your HELIX's AutoChart Live, and you're building custom contour maps on the fly—knowledge that keeps you ahead of the competition.
Effortless Installation and Durability
Installing on a trolling motor is straightforward: secure the stainless steel clamp ring to the motor's shaft, route the cable neatly, and connect the 7-pin plug to your unit. The design minimizes drag, so it won't fight your motor's efficiency. For longevity, rinse with fresh water after saltwater trips and inspect the bracket seasonally. Backed by a solid limited warranty, it's built to last through seasons of hard fishing.
Performance Breakdown
| Sonar Type | Frequency Range | Max Depth |
|---|---|---|
| Dual Spectrum CHIRP | 150-220 kHz (Full) | 1200 ft (365 m) |
| MEGA Down Imaging (455 kHz) | 440-500 kHz | 350 ft (107 m) |
| MEGA DI | 1075-1150 kHz | 125 ft (38 m) |
Frequently Asked Questions
Is the XTM-9-HW-MDI-75-T compatible with all HELIX models?
It's optimized for HELIX 7 and 8 CHIRP MEGA DI GPS G3/G3N units, ensuring full MEGA Down Imaging and Dual Spectrum CHIRP functionality.
What's the difference between MEGA DI and standard Down Imaging?
MEGA DI uses higher frequencies for razor-sharp, nearly photographic detail up close, far surpassing standard 455 kHz imaging in resolution for spotting subtle structure.
Does it work in shallow water?
Absolutely—MEGA DI excels down to just a few feet, ideal for bass in the shallows or panfish over flats.
How long is the cable, and can it be extended?
It comes with a 20-foot cable. Extensions are available but check Humminbird specs to maintain signal integrity.
Is the temperature sensor accurate for fishing decisions?
Yes, it provides reliable surface water temp readings, crucial for locating thermoclines or species-specific preferences like walleye in cooler water.
Can I use this on saltwater setups?
It's durable for brackish but rinse thoroughly after saltwater exposure to prevent corrosion.
California Proposition 65 Warning: This product may contain chemicals known to the state to cause cancer or reproductive harm.
MEGA Down Imaging Transom Mount Transducer supports MEGA Imaging 455 Kilohertz and Dual Spectrum CHIRP 2D Sonar with a CHIRP range of 150 to 220 Kilohertz. Features built-in temperature sensor, rugged composite design, impact-release mounting bracket and 20 Feet cable.
Humminbird 7102961 Attributes
- Mounting Location: Trolling Motor Mount
- Number Of Pins: 7 Pin
- Depth: 1200 Feet
- Frequency Range: 150/ 220 kHz Full Dual Spectrum CHIRP Frequency, 455 kHz/ 1.2 MHz Operating Frequency
- Cable Length: 15 Feet
Humminbird 7102961 Features & Benefits
- Dual Spectrum CHIRP Frequencies: Full: 150 To 220 Kilohertz, Narrow: 180 To 240 Kilohertz, Wide: 140 To 200 Kilohertz
- Features Built-In Temperature Sensor
- Rugged Composite Design
- Impact-Release Mounting Bracket And 20 Feet Cable
- Limited 1 Year Warranty
Humminbird 7102961 Installation Instructions
- 532565-2_A Choke Cable Installation Guide.pdf
- 530511-8_A Trolling Motor Transducer Installation Guide.pdf
Humminbird 7102961 Warranties
Humminbird 7102961 Technical Bulletins
- 532651-1EN_A Transducer Resource Guide.pdf
- 530511-8_A Trolling Motor Transducer Installation Guide.pdf
- 532651-1EN_A Transducer Resource Guide.pdf
XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer with Temp for HELIX® 7/8 MEGA DI
MEGA Down Imaging Trolling Motor Transducer supports MEGA Imaging/455kHz and Dual Spectrum CHIRP 2D Sonar with a CHIRP range of 150-220kHz. Includes built-in temperature sensor, rugged composite design and 20’ cable.
Features:
- This accessory is compatible with the following Humminbird products: HELIX 7 CHIRP MEGA DI GPS G3, HELIX 7 CHIRP MEGA DI GPS G3N, HELIX 8 CHIRP MEGA DI GPS G3N.
- Dual Spectrum CHIRP Frequencies: Full: 150-220 kHz, Narrow: 180-240 kHz, Wide: 140-200 kHz
- Dual Spectrum CHIRP Max Depth: 1200ft (365m)
- MEGA Down Imaging Frequencies - Max Depth: 455kHz: 440-500 kHz - 350ft (107m), MEGA DI: 1075-1150 kHz - 125ft (38m)
WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
The MEGA downward imaging drag motor sensor supports MEGA Imaging / 455 kHz and dual-spectrum CHIRP 2D sonar with CHIRP ranging from 150 kHz to 220 kHz. Including built-in...
Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI Related Products
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Frequently Asked Questions (FAQ) About Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI
Who is the Humminbird?How to describe Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI?
What is the type of the product?
What is the weight of the product?
Speed feature included to the product?
How to mount or what is the mounting style of Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI?
This product can read the temprature?
What is the length of cable (feet)?
What is the imagining type of the product?
What is the length of cable?
Is this product supporting CHIRP and what's the type?
Who is the Humminbird?
How to describe Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI?
What is the type of the product?
What is the weight of the product?
Speed feature included to the product?
How to mount or what is the mounting style of Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI?
This product can read the temprature?
What is the length of cable (feet)?
What is the imagining type of the product?
What is the length of cable?
Is this product supporting CHIRP and what's the type?
Save $50 when you buy the Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI for only $169 from NVN Marine! Same day shipping before 3pm.
Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Humminbird |
| Weight: |
1.63 lb |
| Mounting Style: |
Trolling Motor |
| Cable Length (Feet): |
20' |
| Imagining: |
Standard/Down |
| Chirp: |
High Wide |
| Temperature: |
Yes |
| Speed Included: |
No |
| Product Manual: | |
| Product Installation: |
Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI User Reviews
Humminbird XTM-9-HW-MDI-75-T MEGA DI Dual Spectrum CHIRP Trolling Motor Transducer w/Temp f/HELIX® 7/8 MEGA DI Shipping & Return
| Shipping Weight: |
1.63 lb |
|---|---|
| Box Sizes: |
4.00 (h) x 7.00 (w) x 9.00 (l) |
| Cubic Feet: |
252.0 |
| Returnable: |
Yes |
| P65: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.



