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INTRODUCTION
Capabilities
Designed for detailed electronic charting and complete depth sounding capabil-
ity, the GARMIN GPSMAP 135 Sounder is a powerful navigation device that can
also give you the fishfinding information you need in fresh or saltwater:
Precision Performance
• High-contrast, four-level gray, LCD screen
• PhaseTrac12 receiver tracks and uses up to 12 satellites simultaneously
for fast, accurate positioning
• Differential-Ready— just add the optional GBR 21 beacon receiver for better
than 5-meter accuracy
• Dry nitrogen-sealed case for use in exposed locations
Advanced Navigating and Plotting
• 250 alphanumeric waypoints with selectable icons and comments
• Built-in worldwide database usable from 4096 to 64 nm scales
• 20 reversible routes with up to 30 waypoints each
• G-chart
TM
electronic charting with inland and offshore coverage
• TracBack
TM
route feature which allows you to quickly retrace your track log to
a starting position
• Built-in simulator mode
Superior Fishfinding Ability
• Four zoom levels with a moving view window
• Underwater waypoint marking
• Map/Sounder split screen combines navigation and fishfinding information
• Fish and depth alarms
• Continuously shown digital depth display on all pages
GPS 135 Rev C 8/4/98 4:17 PM Page iii