Garmin GPSMAP 1242xsv Keyed Networking Combo w/GMR 18 HD+ Dome Radar
Garmin GPSMAP 1242xsv Keyed Networking Combo w/GMR 18 HD+ Dome Radar — Product description
Discover Seamless Navigation with Advanced Chartplotting and Radar Integration
Imagine gliding across open waters with crystal-clear situational awareness, whether you're chasing trophy fish or plotting a coastal cruise. This combo pairs a robust 12-inch keyed chartplotter with high-definition radar, delivering an all-in-one powerhouse for serious boaters. The intuitive keypad and multifunction knob make adjustments effortless even in rough seas, while the vibrant display ensures readability under direct sunlight.
Boaters rave about how this setup transforms helm stations into command centers. Share sonar returns, radar overlays, and custom maps across multiple screens on your vessel, fostering teamwork during long outings. It's not just gear—it's the edge that keeps you safe and productive on every trip.
Superior Sonar and Scanning for Precision Fishing
Dive deep into underwater details with built-in CHIRP traditional sonar, ClearVü, and SideVü scanning. These technologies paint vivid pictures of structure, bait schools, and wrecks, helping anglers pinpoint hotspots faster. Add Panoptix live sonar support for real-time views of fish swimming toward your lure—perfect for trolling or jigging.
Networked sonar sharing means every station sees the same rich data, overlaid with speed, depth, or radar info. Pro tip: Pair it with high-frequency transducers for shallow-water finesse, revealing nuances that basic sonar misses. This level of detail has helped countless captains outsmart finicky species in challenging conditions.
Crystal-Clear Radar for Collision Avoidance and Target Tracking
The included dome radar brings sharp, 4kW power in a compact 18-inch package, ideal for mid-sized boats where space is premium. Dynamic auto gain and sea clutter filters adapt on the fly, cutting through rain, fog, or choppy waves to spotlight vessels, buoys, and birds from 20 meters out to 36 nautical miles.
Overlay radar directly on your charts for intuitive navigation—think spotting rain cells ahead or tracking pot markers at dawn. With MARPA, it locks onto up to 10 targets, displaying course, speed, and closest point of approach. Boaters in busy harbors swear by this for dodging weekend traffic, turning potential close calls into confident passes.
Mapping Mastery: From Preloaded Charts to Custom Contours
Hit the water ready with LakeVü g3 for over 17,000 U.S. lakes (1-foot contours) and BlueChart g3 coastal coverage, blending Garmin and Navionics data. Auto Guidance plots safe routes around shallows and overhead hazards, saving hours of manual plotting.
Quickdraw Contours lets you map uncharted spots in real-time, building your private HD library. Share via the community or keep it exclusive. Upgrade paths add relief shading for terrain-like bathymetry, making bottom structure pop. Features like Depth Range Shading highlight safe zones, crucial for unfamiliar anchorages.
Stay Connected: Networking, Wireless, and App Synergy
Full Marine Network compatibility shares everything—user data, IP cameras, even Fusion audio—across units. NMEA 2000/0183 integrates engines, autopilots, and sensors seamlessly. ANT+ links wearables like quatix watches for heart rate during races.
Wi-Fi unlocks the ActiveCaptain app: Sync trips, crowdsource contours, get smart alerts, and update firmware remotely. Plan routes ashore, then beam them aboard. The 10 Hz GPS/GLONASS refreshes position 10x/second for buttery-smooth tracking, dropping pinpoint waypoints effortlessly.
Tailored for Sailors: Wind, Laylines, and Race Tools
Sailors appreciate dedicated pages for pre-race starts, syncing timers network-wide. Laylines, wind roses, set/drift indicators, and true/apparent wind data optimize VMG. GPX imports from other devices ease transitions, preserving your waypoint libraries.
Effortless Installation and Everyday Reliability
Everything arrives ready: bail/flush mounts, NMEA drop cables, adapters. The radar's plug-and-play network cable simplifies setup. Rugged design shrugs off spray and vibration, with user keys for quick access to favorites. Connections abound—dual Marine Network ports, video input, wireless—all engineered for marine mayhem.
Frequently Asked Questions
What makes the sonar capabilities stand out on this chartplotter?
It features built-in 1kW CHIRP sonar plus ClearVü and SideVü scanning for detailed structure and fish arch views. Panoptix support adds live action, and networking shares it across screens for team viewing.
How does the radar enhance safety in poor visibility?
The 4kW HD+ dome delivers clear echoes up to 36 nautical miles with auto gain and sea filters. MARPA tracks targets automatically, overlaying on charts to reveal hidden traffic in fog or night.
Can I create and share my own maps?
Yes, Quickdraw Contours generates 1-foot HD maps on the fly from sonar data. Own and customize them, then share with the community via ActiveCaptain for collective insights.
What connectivity options does it offer for other devices?
Garmin Marine Network, NMEA 2000/0183, ANT+, Wi-Fi, and video input allow sharing sonar, radar, cameras, sensors, and app integration across your boat's ecosystem.
Is it suitable for both fishing and sailing?
Absolutely—fishermen love the sonar suite and Quickdraw, while sailors get laylines, race timers, wind data, and GPX imports. Versatile for cruising, racing, or angling.
How accurate is the positioning?
The 10 Hz GPS/GLONASS receiver updates 10 times per second for fluid tracking and up to 5,000 precise waypoints, ideal for tight maneuvers or returning to spots.
Does it support advanced chart upgrades?
Preloaded LakeVü g3 and BlueChart g3 shine, but Ultra/Vision options add relief shading, satellite imagery, and more via ActiveCaptain for unmatched detail.
GPSMAP 1242xsv Keyed Networking Combo with GMR 18 HD+ Dome Radar
12-inch Chartplotter/Sonar Combo Is All-in-1 Solution
- 12-inch color display with keypad interface and multifunction control knob
- Preloaded U.S. LakeV g3 maps and BlueChart g3 charts feature Navionics data and Auto Guidance technology
- High-sensitivity internal 10 Hz GPS and GLONASS receiver
- Built-in single channel CHIRP sonar, CHIRP ClearV and CHIRP SideV scanning sonar and Panoptix support (transducers sold separately)
Experience an advanced all-in-1 solution with our 12-inch GPSMAP 1242xsv keyed combo. Garmin CHIRP sonar, CHIRP ClearV and CHIRP SideV (also available without transducer). It also has built-in support for Panoptix all-seeing sonar and premium Garmin sonar modules (transducers sold separately). Features a large, bright screen coupled with a quick and easy-to-use keypad interface with user-programmable keys and a multifunction control knob.
Complete Network Sharing
Garmin Marine Network support allows sharing of sonar, maps, user data, dome or open-array radar, IP cameras and Panoptix sonar among multiple units. Includes NMEA 2000 network connectivity and NMEA 0183 support for autopilots, digital switching, weather, FUSION-Link, VHF, AIS and other sensors.
Built-in ANT Connectivity
Enjoy built-in ANT wireless connectivity directly to quatix marine watch, Garmin Nautix in-view display, gWind Wireless 2 transducer, GNX Wind marine instrument and wireless remote controls.
The Ultimate Connected Boating App
Built in Wi-Fi gives you access to the free all-in-one ActiveCaptain app, so you can manage your marine experience from nearly anywhere. It creates a simple yet powerful connection between your compatible mobile device and your Garmin chartplotter, charts, maps and the boating community. Wherever you are, you'll have unlimited access to your cartography, the ability to purchase new maps and charts and access to the Garmin Quickdraw Contours Community. Stay connected with smart notifications on your chartplotter screen. You can also plan a trip or prefish a lake, and ActiveCaptain will automatically sync with your chartplotter. Even get notifications for software updates, and decide when to download them on your device.
Built-in Sonar Capabilities
Right out of the box, you have access to some amazing sonar capabilities; all you have to add are transducers. Comes with built-in Garmin 1 kW CHIRP sonar, CHIRP ClearV and CHIRP SideV scanning sonar. It even supports Panoptix all-seeing sonar, premium Garmin sonar modules and a wide range of transducers (sold separately).
Networked combos can share their internal sonar with any other device on the network. You can also choose what information is overlaid on the sonar screen; for example, radar, time of day or GPS speed.
Heading, Position Refreshed 10 Times per Second
Fast, responsive built-in 10 Hz GPS and GLONASS receiver refreshes your position and heading 10 times each second to make your movement on the screen more fluid. It makes dropping up to 5,000 accurate waypoints and finding your way back to them quick and easy.
Preloaded with Exceptional Garmin Cartography
LakeV g3 inland maps and BlueChart g3 coastal charts provide industry-leading coverage, clarity and detail with integrated Garmin and Navionics data and Auto Guidance1 technology. LakeV g3 and BlueChart g3 include Auto Guidance1, which uses your desired depth and overhead clearance to calculate routes and provide a suggested path to follow. LakeV g3 provides coverage on more than 17,000 lakes with up to 1' contours. BlueChart g3 also includes NOAA raster cartography, available as a free downloadable feature via the ActiveCaptain app. Additionally, they both offer easy-to-use features such as Depth Range Shading and Shallow Water Shading, which let you view your target depth to avoid running aground.
Upgrade to Our Best Maps on the Water
Accessory map purchases, such as LakeV g3 Ultra or BlueChart g3 Vision, add even more features and detail to your maps and charts. LakeV g3 Ultra and BlueChart g3 Vision add high-resolution relief shading, which provides an easy-to-interpret, clearer view of bottom structure than contour lines alone plus many other chart and map-enhancing features.
Quickdraw Contours to Create Your Own HD Maps
Instantly create personalized HD fishing maps on screen with 1-foot contours. Tailor them to fit your needs. These are your maps you own them. Keep the data to yourself, or share it with the Quickdraw Community on Garmin Connect.
Built-in SailAssist Features
To help you gain a wind-maximizing competitive edge, your chartplotter features a pre-race guidance page that shows your virtual starting line along with data fields showing laylines, time to burn before the start and a race timer that can be synchronized across all your networked Garmin GPS products. In addition, other supported sailing features include an enhanced wind rose, heading and course-over-ground lines, set and drift, true and apparent wind data and more.
GPX Waypoints Transfer
If you have waypoints, tracks or frequently used routes stored on another manufacturer's GPS product or on a Garmin handheld device it's easy to transfer those items to your new Garmin chartplotter via industry-standard GPX software formatting.
In The Box
- GPSMAP 1242xsv chartplotter
- Power/data cable
- NMEA 2000 T-connector
- NMEA 2000 drop cable (2 m)
- 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
Connections
- Garmin Marine Network Ports: 2
- Transducer Ports: 1 (12 Pin)
- NMEA 2000 Port: 1
- NMEA 0183 Input Ports: 1
- NMEA 0183 Output Ports: 1
- Video Input Ports: 1 BNC
- Video Output Ports: No
- Wireless Connectivity: Yes
Auto Guidance is for planning purposes only and does not replace safe navigation operations.
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GMR 18 HD+ Dome Radar w/ 15m cable
The compact GMR 18 HD+ dome radar is a good choice for boats with limited room for radar placement. It delivers 4 kW of transmit power and clear echo definition at all ranges to enhance situational awareness. Overlay radar images onto your chartplotter map page; however, for best overlay results, an optional autopilot or heading sensor is recommended. It also helps you avoid traffic on the water. GMR 18 HD+ provides MARPA target tracking when combined with a multifunction display and heading sensor (sold separately).
Dynamic Auto Gain automatically adjusts to your surroundings for optimal performance in all conditions. Dynamic Sea Filter automatically adjusts sea clutter, depending on sea conditions. GMR 18 HD+ features 8-bit true color resolution for a clear presentation on your chartplotter screen. It has a maximum range of 36 nautical miles with a minimum range of 20 meters and a rotation speed of 24 RPM. There are no complex user settings, and it's easy to install and start using.
Features:
- Streamlined 18-inch 4kW dome radar
- Deliver 4kW of transmit power and clear echo definition at all ranges
- Dynamic Auto Gain automatically adjusts to your surroundings for optimal performance in all conditions
- Dynamic Sea Filter automatically adjusts gain to changing sea conditions
- Overlays the radar image on the chartplotter map page (autopilot or heading sensor is recommended for best results)
- MARPA target tracking when combined with a multifunction display and heading sensor (sold separately)
- Beam angles: 5.0° horizontal, 25° vertical
- Max range: 36 nautical miles
- Minimum range: 20 meters
- Rotation speed: 24 revolutions/minute
- No complex user settings; easy to install and start using
Comes with:
- GMR 18 HD+ radome
- Mounting hardware kit
- Power cable (15 m/49.21 ft)
- Network cable (15 m/49.21 ft)
- Installation instructions
- Mounting template
SKU: NVN-78662
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Technical specifications
| Brand | Garmin |
| Model | Garmin GPSMAP 1242xsv Keyed Networking Combo w/GMR 18 HD+ Dome Radar |
| SKU / MFR# | 78662 |
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Frequently asked questions
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