NOTE: This configuration of the Northstar Explorer 657 is packaged with a plastic dual-frequency transom mount transducer that provides depth, temperature, and speed readings. If you would prefer another transducer type, or already have one, click here to see the unit without it.
Compact and powerful, the Northstar Explorer Series Combo Units are user-friendly versatile on-board information systems. Explorer Combo units have built-in 32 MB background maps with high level cartographic detail and the option of employing C-MAP NT MAX charting technology provided by the world's leading cartography company, C-MAP. If there are fish to found, you'll find them with an Explorer Combo unit from Northstar and Turtle Marine.
Explorer Combo Features:
Track-Your-Buddy
When connected with the Explorer 721 VHF, you can automatically plot the position of your DSC radio-equipped boating buddies.
Fish like the Pros...
High vertical pixel count plus 100x zoom funtions mean you can see bottom structure detail like never before. Fish inshore or offshore with the dual frequency sounder and 600 Watts of output power.
Fuel Management
Explorer Chartplotter/Fishfinder Combos are the perfect devices for managing important fuel consumption and economy information. Built-in software allows you to plot and calculate fuel economy curves easily, helping you get the best performance year after year.
C-Map for All
All units run C-Map NT MAX cartography, with enhanced port details, tidal overlays, location photos and comprehensive chart info.
Explorer 657 Features:
Explorer 657 Northstar's 5" high resolution VGA Chartplotter/Fishfinder combo with Fuel Management and AIS functionality.
The built-in 32 MB regional background map still offers reliable entry-level use, waiting to be enhanced with C-Map's latest cartography: NT MAX. With a 640 x 480 pixel screen, your display becomes 4 times sharper than the Explorer 650, being a truly impressive, bright and highly functional addition to your boat.
All the great Northstar chart, sounder, SmartCraft and fuel options are provided with a fantastic selection of split and full screen options. C-Map's NT MAX cartography, including port info, tide flow, perspective views and land data, is fast, clear and bright. The PAGE key provides quick access to three preset and three favorite displays.
The Explorer 657 has full integration with the Explorer 721's Weather Watch functions: temperature, barometer and fishing conditions echoed to your Northstar Explorer in blazing color. The Explorer 657 is also compatible with your boat's AIS system.
With a range of optional fuel add-ons, the Explorer 657 is a powerful travel tool for your boat.
Box Contents:
- Explorer display unit
- Dust cover for display unit
- Power cable
- Mounting bracket (screws included)
- Warranty registration card
- Owner's manual
- Northstar 124 GPS antenna
- Flush mounting kit
- Dual frequency transom sonar transducer (includes cable kit and screws)
- Transom Mount Transducer Installation Manual
Northstar Explorer Combo Series Feature Matrix
|
Explorer 660 |
Explorer 657 |
Explorer 650 |
| Diag. Screen Size |
7" |
5" |
5" |
| Resolution |
800 x 480 |
640 x 480 |
320 x 234 |
| Supply Voltage |
10.5 to 32 V DC |
10.5 to 32 V DC |
10.5 to 32 V DC |
| Operating Temperatures |
0 to 50 °C (32 to 122 °F) |
| C-Map NT MAX Option |
Yes |
Yes |
Yes |
| C-Map Cartridge Slots |
2 |
1 |
1 |
| Sonar Frequency (KHz) |
50/200 |
50/200 |
50/200 |
| Sonar RMS |
600W (4800 W Peak-to-Peak) |
| Depth Range |
2 - 2000 ft (0.6 - 600 m) @ 600W |
| Gasoline Fuel Computer Option |
Yes |
Yes |
Yes |
| SmartCraft (for Mercury digital engines) Option |
Yes |
Yes |
Yes |
| Explorer 721 VHF Integration Option |
Yes |
Yes |
Yes |
| AIS Integration Option |
N/A |
Yes |
N/A |
Looking for an old promotion form? Click here to download it.
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