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Marine
GPSMAP 188/188C Sounder
Specifications 

GPSMAP 188S
 

 

 Specifications  
 Plotter/Moving Map Features   
Basemap: Built-in Worldwide Marine basemap to 32 nm with coastlines, rivers, lakes, political boundaries, tide data for the U.S., cities and interstates.

Data Cartridge: Preprogrammed micro cartridges containing detailed BlueChart™ marine cartography

MapSource: Compatible with most GARMIN MapSource™ products including MapSource BlueChart™ marine cartography and Fishing Hot Spots™. GARMIN data card required.
 Navigation Features  
Waypoints/icons: 3000 with name, symbol and comments; support for proximity waypoints

Routes:

  • GPSMAP 188: 50 reversible routes with up to 50 points each, plus MOB and TracBack® modes
  • GPSMAP 188c: 50 reversible routes with up to 254 points each, plus MOB and TracBack® modes

Tracks: 3000 point automatic track log, 15 saved tracks; 500 points per saved track, lets you retrace your path in both directions

Trip computer: Current speed, average speed, resettable max. speed, trip timer and trip distance

Alarms: Anchor drag, arrival, off course, proximity waypoint and clock

Tables: Built-in celestial tables with sun and moon rise, set, and location; tide tables for the U.S.

Map datums: More than 100, plus user datum

Position format: Lat/Lon, UTM/UPS, Loran TDs and other grids, including user grid

 GPS Performance  
Receiver: WAAS-enabled, 12 parallel channel GPS receiver continuously tracks and uses up to 12 satellites to compute and update your position

Acquisition times:

  • Warm: Approximately 15 seconds
  • Cold: Approximately 45 seconds
  • AutoLocate™: Approximately 5 minutes

Update rate: 1/second, continuous

GPS accuracy:

  • Position: < 15 meters, 95% typical*
  • Velocity: 0.05 meter/sec steady state

DGPS (USCG) accuracy:

  • Position: 3-5 meters, 95% typical*
  • Velocity: 0.05 meter/sec steady state

DGPS (WAAS) accuracy:

  • Position: < 3 meters, 95% typical*
  • Velocity: 0.05 meter/sec steady state

Dynamics: 6 g's

Interfaces: 2-RS232 with NMEA 0183, RTCM 104 DGPS data format and proprietary GARMIN

Antenna: GA 29 remote marine mount with 30' cable or bail mount antenna

 Depth Sounder Features  
Frequency: 50/200 kHz (40'/10')

Sonar power output: 500 watts (RMS), 4000 watts (peak to peak)

Depth: 1500 foot max depth**

See-Thru¨ technology: Shows weak/strong returns simultaneously

Depth control gain (DCG¨): Automatically adjusts fishfinder sensitivity according to depth
 Power    
Source: 8-35v DC

Usage: 8 watts max. at 13.8v DC
 Physical  
Size: 6.3" W x 6.2" H x 2.6" D

Weight: 1.7 lbs. (.77 kg)

Display: 5.5" diagonal (14.0 cm) high-resolution, 10-level grayscale LCD with backlighting (240 x 360 pixels)

Case: Fully gasketed, high impact plastic alloy, waterproof to IEC 529 IPX7 standards

Temperature range: 5°F to 158°F (-15°C to 70°C)
Specifications are subject to change without notice.

* Subject to accuracy degradation to 100m 2DRMS under the U.S. Department of Defense-imposed Selective Availability (SA) Program.

** Depth capacity is dependent on water salinity, bottom type, and other water conditions.