Garmin GPSMAP 238 Sounder User Manual

Page 9

vii

Introduction

Capabilities

Designed for detailed electronic charting capability, the Garmin GPSMAP 188/188C/238 Sounder is

a powerful navigation device that can give you the information you need:

Precision Performance

• 188C: High-contrast, 16-color LCD screen with backlighting; 188/238: High-contrast, ten-level

gray, LCD screen with backlighting

• 12-channel parallel receiver tracks and uses up to 12 satellites for fast, accurate positioning
• WAAS Capable — receive signals from the additional set of WAAS (Wide Area Augmentation

System) satellites to give you better accuracy

• Differential-Ready — just add an optional Garmin beacon receiver for better than 5-meter accu-

racy

• Fully gasketed, high-impact plastic alloy case, waterproof to IEC 529 IPX7

Advanced Navigating and Plotting

• 3000 alphanumeric waypoints with selectable icons and comments
• Built-in Worldwide marine basemap to 20 miles includes detailed ocean, river and lake coast-

lines, cities, interstates, US state highways, and local thoroughfares

• 50 reversible routes with up to 254 (188C; 50 on 188/238) waypoints each
• Uploadable maps using Garmin’s MapSource™ PC products and BlueChart™ Data Cards
• Coordinates: Lat/Lon, UTM/UPS, Loran TD, plus over 20 grids, including Maidenhead
• TracBack route feature which allows you to quickly retrace your track log to a starting position
• Built-in simulator mode
• Built-in tide information from over 3,000 tide stations around the USA coastline, Alaska,

Hawaii, western Canada and several Caribbean Islands

Superior Fishﬁ nding Ability

• Whiteline feature provides a clear image of both bottom hardness and structure
• See-Thru

technology which helps separate ﬁ sh returns from thermoclines and structure

• Four zoom levels with a moving view window
• Underwater waypoint marking
• Map/Sonar split screen combines navigation and ﬁ shﬁ nding information
• Fish and depth alarms

188188C238 Manual Intro.indd vii

6/30/2003, 3:26:30 PM