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Garmin GPSMAP 7408 8" Chartplotter with J1939 Port

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Product Description

7408 GPSMAP 8" Chartplotter with J1939 Port Network Capable

Designed for cruisers, sailors and sailing racers who demand high performance, ease of operation and feature integration, the GPSMAP 7408 chartplotter with 8-inch multi-touch widescreen display has a 10 Hz internal GPS that updates position and heading 10 times per second. It is fully network capable, including the Garmin Network and NMEA 2000, and offers the conveniences of built-in Wi-Fi® connectivity.

  • 8-inch multi-touch widescreen display (1024 x 600 WSVGA) with worldwide basemap
  • High-sensitivity internal 10 Hz GPS/GLONASS
  • Fully network capable for Garmin Marine Network and NMEA 2000®, plus NMEA 0183 support
  • Supports GSD premium sonar and GCV scanning sonar modules
  • Advanced sailing and sail racing features

Garmin Marine Network and NMEA 2000 Support
Full-network compatibility allows you to add more capabilities to your boat. GPSMAP 7408 supports radar, autopilot, instruments, multiple screens, FUSION-Link, sensors, remote sonar modules, digital switching, thermal cameras, GRID rotary knob, joystick and keypad control and more.

Add Array or Dome Radar
You can add your choice of Garmin marine radar, including our powerful xHD2 open array radars or xHD dome radars that pairs ease of use with advanced open array features.

Network Sharing
GPSMAP 7408 allows you to share features with other compatible GPSMAP units, such as radar, GCV 10 DownVü and SideVü scanning sonar, GSD 24, GSD 25 and GSD 26 sonar modules, supplemental maps, and user data, including waypoints, routes and tracks. User data entered into 1 chartplotter can be automatically synced with other chartplotters in a network.

Heading and Position Refreshed 10 Times Per Second
Fast, responsive 10 Hz GPS/GLONASS 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.

Special Sailing Features
Supported sailing features include laylines, enhanced wind rose, heading and course-over-ground lines, true wind data fields and tide/current/time slider. Gauge displays are designed to provide important need-to-know information at a glance, including true and apparent wind angle, set and drift, true or apparent wind speed, horizontal or vertical graphs, and a data bar with customizable data fields.

Compatible with gWind™ Transducers
Garmin gWind, gWind Wireless and gWind Race transducers feature twin-fin technology with 3-bladed propeller. Connect to the NMEA 2000 and compatible Garmin chartplotters via the GND™ 10 black box bridge.

Black Box Interface
The GND 10 black box interface seamlessly integrates Nexus instruments and sensors with the Garmin family. It converts data between the Nexus network and NMEA 2000 to provide trouble-free compatibility between Nexus and Garmin products.

Upgrade with the Best Maps on the Water
Two SD™ card slots provide expandable memory for accessory map purchases, such as LakeVü HD, LakeVü HD Ultra or BlueChart g2 or BlueChart g2 Vision.

FUSION-Link Entertainment System
Enjoy the ability to control all compatible FUSION-Link-enabled audio systems directly from your compatible chartplotter display.

Built-in Wi-Fi/ANT+™
Built-in Wi-Fi/ANT for use with Garmin Helm™ and BlueChart Mobile.

View and Control Your Device from a Smartphone or Tablet
Garmin Helm allows you to view and control your compatible Garmin chartplotter from a compatible smartphone or tablet while providing enhanced situational awareness for the mariner. Easily switch between portrait and landscape mode to accommodate mounting preferences. When using an iPhone® or iPad®, you can even record a movie of your chartplotter screen to share with friends and family. Download from The App Store™ or Google Play™.

Get Your Apple® Device Onboard with BlueChart Mobile
With BlueChart Mobile, a free app downloaded from the App Store, you can plan marine routes on your iPad or iPhone then wirelessly transfer them to your boat’s compatible networked Garmin chartplotter. Even if you don’t have a Garmin chartplotter, you can still take advantage of the tremendous features of BlueChart on your Apple device.

Enhanced Auto Guidance
Just enter the location where you want to go and patented Garmin Auto Guidance technology instantly searches through relevant charts to create a safe virtual pathway on the display that helps you avoid low bridges, shallow water and other charted obstructions en route.

Better still, with enhanced Version 2.0, you now have access to even more features and capabilities. You’re able to adjust the calculated Auto Guidance pathway by inserting “via” points at interim stops or landmarks along your desired route. You can easily review hazard points along your calculated path. And you can even engage your compatible Garmin autopilot to follow the Auto Guidance route, automatically. Other 2.0 enhancements give you the ability to calculate arrival times at any point on your route (great for timing arrivals to correspond with bridge openings and other time-critical events). Better still, you can now save your plotted Auto Guidance paths for future navigation by backing them up on an SD™ card with your BlueChart® g2 Vision® or Lake Vü™ HD Ultra cartography¹.

Simplified SOS Calling
This exclusive SOS safety assist feature makes it easier for anyone – even those not familiar with marine electronics or radio protocols – to quickly call for Coast Guard help in an emergency. By simply tapping the SOS button on the chartplotter’s touchscreen display, your networked Garmin VHF radio will automatically tune to the Channel 16 emergency frequency and a list of possible situations (fire, man overboard, etc.) will be displayed. Once the applicable choice has been selected, the screen will provide a Coast Guard approved VHF radio distress call script, along with the ship’s current lat/long GPS coordinates, that can be read off to responders – thus saving time, averting panic, and providing the essential information needed by rescuers to assure the best possible outcome.

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 –  now it’s easier than ever to transfer those items to your new Garmin chartplotter, via industry-standard GPX software formatting. GPX is an open standard format for GPS data exchange across platforms and applications. With this easy-to-use interface technology, Garmin has taken “no waypoint left behind” to a whole new level of trade-up convenience.

Special Sailing 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. You can also use available built-in wireless connectivity to access and control a variety of marine-specific apps via compatible smartphones or tablets.

Panoptix™ Down Transducer
With 1 Panoptix Down transducer, you get 3 remarkable views, allowing you to actually see fish and bait swimming around under your boat – in real time. You can even see fish in the water column in 3-D, from the bottom to the surface. You can be stationary yet still see things in 3-D below your boat.


Physical & Performance
Physical dimensions 9.6” x 6.3” x 3.0” (24.4 x 16.0 x 7.6 cm) 
Display size, WxH 7.0" x 4.0"; 8.0" diagonal (17.8 x 10.2 cm; 20.3 cm diagonal)
Display resolution, WxH 1024 x 600 pixels 
Display type WSVGA display 
Weight 3.1 lbs. 
Water rating IPX7
Antenna Internal or external over NMEA 2000 
NMEA 2000® compatible
NMEA 0183 compatible
SiriusXM™ Weather & Radio compatible

Power consumption
Max power usage at 10 Vdc: 27 W
Typical current draw at 12 Vdc: 1.8 A
Max current draw at 12 Vdc: 2.3 A
Mounting options Bail, flat or flush 
Garmin Marine Network™ ports 2

Maps & Memory
Preloaded maps None
Accepts data cards 2 SD™ cards
Waypoints 5,000 
Routes 100 
Track log 50,000 points; 50 saved tracks 

Chartplotter Features
Garmin Radar compatible
Garmin Sonar compatible Yes (when connected to another compatible sonar device)
Garmin SmartMode compatible (customizable monitor presets)
Supports AIS (tracks target ships position)
Supports DSC (displays position data from DSC-capable VHF radio)
Tide tables
Garmin Meteor Audio System compatible
Supports Fusion Lync compatible marine radios
GSD™ Black Box sonar support
GCV™ Black Box sonar support
BlueChart® Mobile (planning) compatible
Garmin Helm compatible
GRID™ (Garmin Remote Input Device) compatible
Wireless remote compatible
Sonar Features & Specifications
Dual-frequency (50/200 kHz) sonar capable Yes (when connected to another compatible sonar device) 
Dual-beam (77/200 kHz) sonar capable  Yes (when connected to another compatible sonar device) 
CHIRP sonar technology Yes (when connected to another compatible sonar device) 
DownVü™ Yes (when connected to another compatible sonar device)
SideVü Yes (when connected to another compatible sonar device)

NMEA 0183 input ports 2 
NMEA 0183 output ports 2 
Video input ports 1 Composite
Video output ports None 
Wireless connectivity

User interface: Multi-touch touchscreen
Auto backlight dimming: Yes
Supplemental map sharing: Yes
Internal sonar sharing: Yes, receive only

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