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Home > Marine Electronics > GPS/Chart Bracket Mount > Northstar 657 Explorer TM
Northstar 657 Explorer TM
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All products on our website are brand new directly from the manufacturer with full support and warranty!
Northstar 657 Explorer TM
Product ID: NS1114    MFG ID: NS006641
Northstar 657 Explorer unit offers the same multi-function features as the larger Northstar 660 Explorer but in a compact 5-inch display now with AIS. Northstar 657 Explorer has all the great Northstar chart, sounder, AIS and fuel options are provided with a fantastic selection of split and full screen options.
Availability: Usually ships within 24 hours

List Price $824.95
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FeaturesSpecificationsAccessoriesRelatedProduct Links
Northstar 657 Explorer Features
  • Daylight viewable 5” VGA color screen for great viewing in all light conditions with 640 x 480 resolution.
    • Easy to use with variable split screen options.
    • Combination Chartplotter and Fishfinder with built-in fuel options*
  • Fishfinder:
    • Transom mount dual frequency (50/200 kHz) transducer for great target definition and bottom detail.
    • Impressive 600 W RMS output power (4800 W peak to peak) for depth readings up to 2000’ (600 m) with standard transducer.
  • Chartplotter:
    • High accuracy GPS antenna (WAAS/EGNOS capable)
    • Uses C-MAP NT MAX cartography 32MB Embedded regional map.
  • Unique Features:
    • AIS ready
    • Gasoline/Petrol Computer Software Included*
    • SmartCraft Software Included*
    • Track-Your-Buddy (requires VHF 721)
    • Weather Station (requires VHF 721)
    • Fully waterproof.
    • Full 2 year warranty.
    *Requires optional accessory AA002436 Y cable
PHYSICAL DIMENSIONS
Screen Size (diagonal)
5" / 127 mm
Supply Voltage
10.5 to 32 V DC
LCD Display Type
Daylight viewable color TFT
Antenna Type
Smart external (with 10m cable)
Screen resolution (pixels)
320 x 234
Power Consumption (backlight on)
13.8 W or 1 A at 13.8 V
Mounting
Flush or bracket mount (overhead or dash)
Languages
English, French, German, Dutch, Swedish,
Finnish, Spanish, Portuguese, Italian and Greek
Alarms
Arrival Radius, Danger, Anchor, XTE, Too Shallow,
Too Deep, Fish, Low Battery, Temperature Value,
Temperature Rate, Low Fuel
Weight
720g
Backlighting
16 levels variable white
Operating Temperatures
32 to 122 F (0 to 50 C)
Keypad
Laser etched silicon rubber and backlit
Waterproof Rating
IP67 (Immersed 3ft (1m) water for 30 minutes)
Beeper
Audible beeper with external alarm output
Memory
NVM - stores all settings when turned off
CHART-PLOTTING
Imbedded World Map
32 MB
Waypoint memory
3000 alphanumeric
Routes
25 with up to 50 waypoints per route
Cartography
C-Map NT and NT+ worldwide cartography
with Port and Tide services data
Tracklogs (time or distance)
5 Tracklogs: 1 x 2000 points, 4 x 500 points
C-Map™ cartridge slots
1
C-Map™ User Card support
yes
PC Interface
Yes, via C-Map™ PC Planner (ask your Northstar dealer)
Chart Display options
North, Track and Course up
Track-Your-Buddy display
yes
Chart Datums
128 Chart Datums, one user defined map datum
Celestial Data
Tide Data (with nearest tide station, peak tide times
and depths), local time, moon phase, sunrise and sunset
Waypoint / MOB HotKey
yes
SONAR / TRANSDUCER INFO
Transmit Frequency
50 kHz | 200 kHz
Water Temperature
Yes, with trend graph
Output Power (RMS)
600 W
Depth Range (with supplied transducer)
2 ft (0.6 m) - 2000 ft (600 m)
Bottom Indication
16 color
Boat Speed with Log
yes
Tranducer options
Transom and Through hull
Auto Range and Auto Gain
yes
 
Depth Aquisition Time
~ 2 s at 100 ft (30 m)
Sonar and History Display
no
Split-screen Zoom
yes
Bottom Lock
yes
Fish Symbol
3 sizes with or without depth indication
FUEL / FEATURES
Instant fuel flow*
Gasoline
SmartCraft™ Software
Yes
Fuel Used* / Fuel Remaining*
Gasoline
Fuel Economy*
Gasoline
Fuel Range*
Gasoline
Display - Variable Split Ratio
yes
Battery Voltage and Engine Hours Display
Yes
COMMUNICATIONS
NavBus
Yes
VHF DSC Interface
Yes
NMEA display screen
Yes
NMEA 0183 (ver 2) input
Standard input from GPS or DGPS receiver,
BWR, DPT, GGA,GLL,GSA,HDG, HDM,HDT, MTW, MWV,RMC,VHW,VTG and DBT
NMEA 0183 (ver 2) Output
APA,APB,BWR,DBT,DPT,GGA,GLL,GSA,GSV,RMB,RMC,
MTW,VLW,VTG,XTE
Features with VHF Radio
Fish Forcast
yes
Weather Station
yes
Track your Buddy
yes




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