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Introduction to the manual and company information.
Details on the manual's structure and product registration.
Important safety information regarding GPS accuracy and operation.
Information about the product warranty and serial number recording.
Lists the key features of the GPSMAP 168 Sounder.
Lists the standard and optional items included in the package.
Explains the function of each key on the GPSMAP 168 Sounder.
Steps to power on the unit and acknowledge warnings.
Step-by-step guide to marking the present position as a waypoint.
Introduction to navigating to a destination using the NAV/MOB key.
Explanation of the Sonar Page as a fishfinder/flasher.
Introduction to Compass and Highway navigation pages.
Visual reference for satellite acquisition and receiver status.
Comprehensive display of electronic cartography and navigational data.
Explanation of the Sonar Page as a fishfinder/flasher.
Methods for creating and using waypoints.
Using TracBack to retrace a path using the track log.
Creating routes using text or graphically from the map.
Accessing waypoint, system, navigation, and setup menus via tabs.
Information about the Loran C radio navigation aid.
Setting up Loran TD coordinates from Main Menu or Status Page.
Lists physical and performance specifications of the unit.
Instructions for mounting the GPSMAP 168 Sounder unit.
Connecting power/data and interfacing with external devices.
Installation instructions for transom, thru-hull, and trolling motor transducers.
Explains how sonar works and what the unit displays.
Illustrates how transducer coverage varies with depth.
Explains how the fishfinder displays underwater information.
Alphabetical listing of topics and their corresponding page numbers.
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General