Tech Specs

In The Box
Power cable (15 m/49.21 ft)
Network cable (15 m/49.21 ft)
Voltage converter
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
Power cable (15 m/49.21 ft)
Network cable (15 m/49.21 ft)
Voltage converter
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 GMR 1234/1236 xHD3 Open Array Radar and Pedestal (K10-00012-27)
The Garmin GMR 1234/1236 xHD3 Open Array Radar and Pedestal is engineered for those who demand precision and reliability on the water. This advanced radar system combines high-definition imaging with cutting-edge technology, making it the ideal choice for offshore cruising and fishing. With its superior weather, obstacle, and traffic detection capabilities, this radar ensures you can navigate any waters with confidence.
Key Features
- Powerful Range: Available in 4 kW, 12 kW, or 25 kW outputs, with a maximum detection range of up to 96 nautical miles (for the 25 kW model).
- Scan Averaging Technology: Reduces sea clutter and interference for clearer, more reliable target detection.
- Improved Target-Size Processing: Enhances object shapes for superior clarity at all range scales.
- Split-Screen Dual-Range Display: View close and long-range targets side by side with independent range settings.
- 100-Knot Wind Rating: Designed for commercial-grade performance under extreme conditions.
- Dynamic Sea Filter: Adjusts sea clutter settings for smooth operation in calm, medium, or rough waters.
Data Insights
The Garmin GMR 1234/1236 xHD3 showcases impressive performance metrics, boasting a 25 kW output with a maximum range of 96 nautical miles. This radar demonstrates a remarkable capability to track up to 30 targets simultaneously, significantly enhancing situational awareness. The dynamic auto gain feature ensures optimal performance across various marine environments.
Usage Instructions
To achieve the best results with your Garmin GMR 1234/1236 xHD3, ensure proper alignment during installation and regularly calibrate the radar settings based on your operational environment. Utilize features like the dynamic auto gain for optimal target detection in varying sea conditions.
Design & Material
The design of the Garmin GMR 1234/1236 xHD3 reflects its high-performance capabilities. Crafted with precision, this radar is built to withstand the rigors of marine environments.
- Durable Construction: Commercial-grade materials ensure longevity and resilience against harsh weather.
- Streamlined Design: Aerodynamic shape reduces wind resistance.
- High-Speed Antennas: Features 24 and 48 RPM rotation speeds for fast screen refresh rates.
- Quiet Operation: Equipped with a smooth open-array drive motor for minimal noise.
- Compact Footprint: Ideal for installations with limited space.
- White Finish: Elegant finish complements marine aesthetics while enhancing visibility.
Final Verdict
The Garmin GMR 1234/1236 xHD3 Open Array Radar and Pedestal is a must-have for any serious mariner. Its unparalleled performance, advanced features, and robust construction make it an essential tool for navigating both calm and challenging waters. Elevate your marine experience today and ensure your safety with this top-tier radar solution!