Garmin GPSmap 820 Chartplotter

 With NMEA 2000® support for autopilot capability, engine data, SiriusXM® Weather and more, the GPSMAP 820 is compatible with LakeVü HD Ultra, BlueChart g2 and BlueChart g2 Vision. It also supports all Garmin marine radar.

 

For even more functionality, wirelessly connect to Apple® (mobile digital device) for BlueChart® Mobile. The chartplotter includes 2 SD™ data card slots, allowing for gigabytes of storage. It can be flat, flush or bail mounted.

 

Networking
The GPSMAP 820xs offers select networking capabilities that allow you to share features with other compatible GPSMAP units, such as radar, GCV 10 DownVü and SideVü scanning sonar, supplemental maps, and user data, such as waypoints, routes and tracks.

 

Special Sailing Features
Supported sailing features include laylines, enhanced wind rose, heading and course-over-ground lines, and true wind data fields. 

  Physical & Performance
Unit dimensions, WxHxD  11.5" x 7.4" x 2.9" (29.3 x 18.8 x 7.4 cm)
Display size, WxH 
6.4" x 4.8"; 8.0" diagonal

(16.2 x 12.1 cm; 20.3 cm diagonal)

Display resolution, WxH  800 x 600 pixels
Display type  SVGA display
Weight  3.5 lbs (1.6 kg)
Waterproof  Yes (IPX7)
Receiver  10 Hz high-sensitivity
Antenna  Internal with external connection
Mounting options  Bail, flat or flush
Power consumption 
Max power usage at 10 Vdc: 14 W

Typical current draw at 12 Vdc: 1.1 A

Max current draw at 12 Vdc: 3.2 A

 

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

Features & Benefits
Garmin Radar compatible  Yes
Garmin Sonar compatible  Yes (with GCV™ black box, sold separately)
NMEA 2000® compatible  Yes
NMEA 0183 compatible  Yes
Garmin Marine Network™ compatible  Yes (limited capabilities)
Garmin SmartMode compatible (customizable monitor presets)  No
Supports AIS (tracks target ships position)  Yes
Supports DSC (displays position data from DSC-capable VHF radio)  Yes
Tide tables  Yes
Garmin Meteor Audio System compatible  No
Supports Fusion Lync compatible marine radios  No
GSD™ Black Box sonar support  No
GCV™ Black Box sonar support  Yes
SiriusXM™ Weather & Radio compatible  Yes
BlueChart® Mobile (planning) compatible  Yes
Garmin Helm compatible  Yes
GRID™ (Garmin Remote Input Device) compatible  No
Wireless remote compatible  No
Wireless mouse compatible  No
Sonar Features & Specifications
Dual-frequency (50/200 kHz) sonar capable  No
Dual-beam (77/200 kHz) sonar capable  No
CHIRP sonar technology   No
DownVü™  Yes (with GCV™ black box, sold separately)
SideVü™  Yes (with GCV™ black box, sold separately)
Voltage range  10-32 Vdc input
Connections
NMEA 0183 input ports  2
NMEA 0183 output ports  2
Video input ports  None
Video output ports  None
Wireless connectivity  Yes
Garmin Marine Network™ ports  1 

 In the box

GPSMAP 820 with worldwide basemap
Power/data cable
Bail mount
Flush mount
Protective cover
Documentation