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GPSMAP 420s
It is one of the most advanced GPS/Plotter units, due to its compatibility with the new Garmin Bluechart G2 Vision cartography, which features satellite photographic images that can overlap the base map; perspective navigation offers satellite images that help you see in your device what you would see from a bridge: submarine perspective navigation allow fishing applications, auto routing functions, terrestrial coastal cartography with interest points. Its internal or external antenna allow installation in any type of boat and its NMEA output makes it easy to connect with an automatic pilot or other devices. For those who want to enjoy fishing. 420S adds up a powerful 500-W and 50/200 KHz sound sensor
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User Manual

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Tecnical Specs
Physical & Performance: |
| Unit dimensions, WxHxD: |
5.7" x 5.0" x 2.7" (14.5 x 12.7 x 6.9 cm) |
| Display size, WxH: |
2.4" x 3.2", 4.0" diagonal (6.1 x 8.1 cm, 10.2 cm diagonal) |
| Display resolution, WxH: |
240 x 320 pixels |
| Display type: |
QVGA display |
| Weight: |
1.3 lb (590 g) |
| Battery: |
none |
| Battery life: |
none |
| Waterproof: |
yes (IPX7) |
| Antenna: |
internal |
| NMEA input/output: |
NMEA 0183 |
Maps & Memory: |
| Basemap: |
yes |
| Preloaded maps: |
no |
| Ability to add maps: |
yes |
| Built-in memory: |
none (cannot load maps to internal memory) |
| Accepts data cards: |
SD™ card slot |
| Waypoints/favorites/locations: |
1,500 |
| Routes: |
20 |
| Track log: |
10,000 points; 20 saved tracks |
Features: |
| Garmin radar compatible: |
no |
| Garmin sonar compatible: |
yes |
| CANet® compatible: |
yes |
| Garmin Marine Network™ compatible: |
no |
| Supports AIS (tracks target ships' position): |
yes |
| Supports DSC (displays position data from DSC capable VHF radio): |
yes |
| Audible alarms: |
yes |
| Tide tables: |
yes |
| Hunt/fish calendar: |
no |
| Sun and moon information: |
yes |
| 3D map view: |
yes (with optional BlueChart g2 Vision card) |
| Auto Guidance: |
yes (with optional BlueChart g2 Vision card) |
| Automatic routing (turn by turn routing on roads): |
no |
| XM WX Weather & Radio for U.S. compatible: |
no |
| Voice prompts (e.g. "Turn right in 500 ft."): |
no |
| Remote control: |
no |
| Headphone jack/audio line-out: |
no |
| Audio/video input/output: |
no |
| Portable: |
no |
| Automotive/motorcycle-friendly: |
no |
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