GPSMAP
®
188/188C and 238 Sounder
©2001 GARMIN Corporation
GARMIN International
1200 East 151st Street
Olathe, Kansas 66062, U.S.A.
913/397.8200 fax 913/397.8282
GARMIN (Europe) Ltd.
Unit 5, The Quadrangle
Abbey Park Industrial Estate
Romsey, SO51 9AQ, U.K.
44/1794.519944 fax 44/1794.519222
GARMIN (Asia) Corporation
No. 68, Jangshu 2nd Rd.
Shijr, Taipei County, Taiwan
886/2.2642.9199 fax 886/2.2642.9099
www.garmin.com
Specifications are preliminary and subject to change
without notice.
* Subject to accuracy degradation to 100m
2DRMS under the U.S. Department of Defense
imposed Selective Availability Program.
**Depth capacity is dependent on water salinity,
bottom type, and other water conditions.
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:
4 watts max. at 13.8v DC
Physical
Size:
GPSMAP 188/188C = 6.3" W x 6.2" H x 2.6" D
GPSMAP 238 = 7.7" W x 7.5" H x 2.6" D
Weight:
GPSMAP 188/188C = 1.7 lbs. (.77 kg)
GPSMAP 238 = 2 lbs. (.91 kg)
Display:
GPSMAP 188 = 5.5" diagonal (14.0 cm)
high-resolution, 10-level grayscale LCD
with backlighting (240 x 360 pixels)
GPSMAP 188C = 5.0" diagonal (12.7 cm)
16-color TFT display with backlighting
(234 x 320 pixels)
GPSMAP 238 = 7.1" diagonal (18.0 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
Temp. range:
5ºF to 158ºF (-15ºC to 70ºC)
Accessories
Standard:
Power/data cable
bail mount
protective front cover
remote antenna with 30' cable
owner’s manual
quick reference guide
Optional:
Preprogrammed data cards with
BlueChart
™
marine cartography
AC/PC adapter
12-volt adapter cable
USB data card programmer
Second mounting station
GBR 23 beacon receiver
MapSource
™
CDs:
Fishing Hot Spots
®
U.S. Waterways & Lights
Roads & Recreation
WorldMap
REV1001
M01-10111-00
Navigation features
Waypoints/icons:
3000 with name, symbol and comments;
support for proximity waypoints
Routes: 50 reversible routes up to 50 (254 for 182C)
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
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
Languages:
10
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:
6g’s
Interfaces:
2-RS232 with NMEA 0183, RTCM 104 DGPS
data format and proprietary GARMIN
Antenna:
GPSMAP 188 = GA 29 remote marine mount
with 30' cable or bail mount antenna
GPSMAP 238 = GA 29 remote marine mount
with 30' cable
Plotter/moving map features
Basemap:
Built-in worldwide basemap to 32 nm with
coastlines, rivers, lakes, political boundaries,
tide data for the U.S., cities and interstates
Data cartridges:
Preprogrammed micro cartridges contain
detailed BlueChart
™
marine cartography
GPSMAP 238 Sounder
GPSMAP 188 Sounder
GPSMAP 188C Sounder
specifications
The graphic
pointer helps
you stay on
course to your
destination.
The big numbers
option makes
data fields
readable from
a distance.
Tide charts
display detailed
tide data for
the U.S.
