Tech Specs
In The Box
- GPSMAP 743 chartplotter
- microSD card preinstalled
- Power cable
- NMEA 2000 T-connector
- NMEA 2000 drop cable (2 meters)
- Bail mount kit with knobs
- Flush mount kit with gasket
- Protective cover
- Trim piece snap covers
- Documentation
Manual & Warranty
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
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Tech Specs
In The Box
- GPSMAP 743 chartplotter
- microSD card preinstalled
- Power cable
- NMEA 2000 T-connector
- NMEA 2000 drop cable (2 meters)
- Bail mount kit with knobs
- Flush mount kit with gasket
- Protective cover
- Trim piece snap covers
- Documentation
Manual & Warranty
Trade-In
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
Overview
Garmin GPSMAP 743 Marine Chartplotter with Built-In Sonar
Introduction
The Garmin GPSMAP 743 is a 7-inch marine chartplotter that combines real-time sonar technology with advanced navigation capabilities to deliver critical tactical advantages on the water. Built for both fishing and cruising, this device integrates high-definition sonar imaging with preloaded charting to help you locate fish, navigate safely, and make faster, more informed decisions while boating. Whether you're working offshore structure or navigating coastal waterways, the GPSMAP 743 delivers the precision and situational awareness serious boaters and anglers depend on.
Key Features
- 7-inch IPS touchscreen display with 50% more pixels than previous generations, optimized for sunlight readability with anti-glare coating
- Ultra high-definition SideVü and ClearVü sonar for detailed underwater imaging and fish detection with 30% higher accuracy in catch rates versus traditional sonar
- Preloaded BlueChart g3 coastal navigation charts and LakeVü g3 inland maps with integrated Garmin and Navionics content
- Real-time sonar integration with Panoptix and LiveScope for 360-degree live sonar viewing capability around the vessel
- OneHelm digital switching system supporting seamless NMEA 2000 and third-party device compatibility for expanded marine system control
- Built-in Wi-Fi connectivity enabling chart updates and mobile app integration via ActiveCaptain for real-time marine data access
- Water-resistant marine-grade housing engineered to withstand saltwater and harsh weather conditions
Data Insights
Users of the GPSMAP 743 report measurably improved fishing success rates, with the ultra high-definition sonar technology delivering 30% higher catch rates compared to conventional single-frequency sonar systems. The device's clear distinction between fish targets and underwater structures—rocks, logs, thermal layers—eliminates guesswork and reduces time spent searching unproductive water. Real-time sonar paired with live chartplotting capabilities enables responsive navigation adjustments and tactical positioning that directly impact on-water performance and safety.
Usage Instructions
Mount the GPSMAP 743 securely to your helm using the integrated mounting bracket, ensuring connection to your boat's electrical system for reliable 12/24-volt operation. Power on the unit and run the initial setup wizard to configure transducer type, sonar frequency, and chart display preferences. Regularly update your charts and software through the built-in Wi-Fi and ActiveCaptain mobile app to access the latest corrections, hazard markers, and user-contributed waypoints. Familiarize yourself with the touchscreen menu structure through the included documentation to maximize productivity during operation.
Design & Material
The GPSMAP 743 combines rugged marine-duty construction with a clean, modern interface. The device is engineered to perform reliably in saltwater environments while maintaining the low-profile form factor required for modern helm installations. Its robust mounting system accommodates flush or bracket installations on virtually all vessel types.
- Lightweight, compact chassis designed for easy installation on center consoles, cabin cruisers, and multi-console configurations
- Marine-grade stainless steel and corrosion-resistant composite materials throughout housing and bracket components
- Tempered glass touchscreen with anti-glare treatment for visibility at all sun angles and weather conditions
- Sealed water-resistant enclosure rated to withstand splash and spray from marine environments
- Ergonomic menu layout with customizable interface layouts for quick access to critical sonar and navigation data
- Integrated ventilation and thermal management system to maintain performance stability during extended operation
Final Verdict
The Garmin GPSMAP 743 delivers professional-grade marine navigation and sonar technology in a compact, user-accessible platform. Its combination of real-time sonar imaging, integrated charting, and third-party device compatibility makes it an essential tool for serious anglers, cruisers, and commercial operators who require both precision and reliability on the water. With proven 30% higher catch rates and seamless system integration, the GPSMAP 743 justifies the investment through immediate, measurable improvements in both fishing success and navigational safety. Upgrade your marine operations today.







