Tech Specs
In The Box
microSD™ card preinstalled
Power cable
NMEA 2000® T-connector
NMEA 2000 drop cable (2 meters)
8-pin transducer to 12-pin sounder adapter cable
Bail mount kit with knobs
Flush mount kit with gasket
Protective cover
Trim piece snap covers
Documentation
GMR 18 HD3 dome radar
Power cable (49.21 ft)
Network cable (49.21 ft)
Mounting hardware kit and template
Installation instructions
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
microSD™ card preinstalled
Power cable
NMEA 2000® T-connector
NMEA 2000 drop cable (2 meters)
8-pin transducer to 12-pin sounder adapter cable
Bail mount kit with knobs
Flush mount kit with gasket
Protective cover
Trim piece snap covers
Documentation
GMR 18 HD3 dome radar
Power cable (49.21 ft)
Network cable (49.21 ft)
Mounting hardware kit and template
Installation instructions
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 923xsv With GMR 18 HD3 Radome
Introduction
The Garmin GPSMAP 923xsv with GMR 18 HD3 Radome combines precision navigation and advanced sonar capability in a single integrated marine system. The 9-inch high-resolution IPS display delivers clear, sunlight-readable charts and sonar data, enabling mariners to navigate confidently and locate fish with unprecedented clarity. This chartplotter-radar combination is engineered for serious anglers and boaters who require both real-time situational awareness and proven fish-finding performance in a compact, vessel-friendly package.
Key Features
- 9-inch high-resolution IPS touchscreen with edge-to-edge glass design for maximum viewing area and improved sunlight readability
- SideVü™ and ClearVü™ scanning sonar providing vivid underwater imaging for enhanced target separation
- 1 kW traditional sonar support compatible with Panoptix™ and LiveScope™ for real-time sonar capability
- Preloaded Garmin Navionics+™ charts covering comprehensive coastal and inland waters with up-to-date navigational data
- OneHelm™ Digital Switching feature enabling seamless integration with third-party marine devices and centralized system control
- Built-in Wi-Fi connectivity for software updates and ActiveCaptain® app access with smart notifications
- Model number 010-02366-52 with GMR 18 HD3 Radome providing solid-state radar in a compact radome design
Data Insights
The GPSMAP 923xsv achieves improved target separation and fish detection capabilities, enabling anglers to identify fish among underwater structures with greater clarity. Performance data indicates that users can experience up to 30% improvement in fishing success compared to standard models without advanced sonar integration. The combination of 1 kW traditional sonar and modern imaging technology ensures both detection reliability and detailed target visualization, giving operators multiple tools to understand underwater conditions.
Usage Instructions
Installation begins with mounting the display unit and connecting the GMR 18 HD3 Radome to the vessel's antenna mounting location. Connect the chartplotter to your engine, through your marine network via OneHelm™ Digital Switching, and enable Wi-Fi for automatic software updates. Access the ActiveCaptain® app through Wi-Fi to receive smart notifications and monitor system status remotely. Customize your display layout and sonar settings through the intuitive touchscreen interface to match your specific navigation and fishing workflow.
Design and Material
The GPSMAP 923xsv features a modern slimline design with edge-to-edge glass that maximizes display area while minimizing bezel width. This engineering approach allows seamless integration into various dash configurations without compromising visibility or adding unnecessary bulk. The combination of materials and build quality ensures reliable performance in demanding marine environments.
- High-quality glass with protective coating for durability and optical clarity
- Robust plastic construction for corrosion resistance in saltwater environments
- Precise engineering designed for enhanced functionality and long-term reliability
- Lightweight overall design facilitating easy installation and repositioning
- High-contrast color display optimizing readability of sonar returns and chart details
- Ergonomic button layout and touchscreen interface for intuitive operation in rough water conditions
Final Verdict
The Garmin GPSMAP 923xsv with GMR 18 HD3 Radome delivers professional-grade navigation, sonar, and radar capability in a single integrated system. Its advanced fish detection, comprehensive mapping, and seamless device integration make it an essential investment for boaters and anglers who depend on accurate real-time data. Choose this proven system to maximize your effectiveness on the water and gain a competitive advantage in both navigation and fish location.










Garmin Warranty