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GPSMAP 188/188C Sounder Owner’s Manual iii
INTRODUCTION > TABLE OF CONTENTS
Pages Tab ............................................................................... 63
Map Tab .................................................................................. 64
General Sub Tab ........................................................................... 64
Source Sub Tab ............................................................................ 64
Waypoints Sub Tab ....................................................................... 65
Points Sub Tab .............................................................................. 66
Navaids Sub Tab ........................................................................... 66
Nav Line Sub Tab ......................................................................... 67
Track Sub Tab ............................................................................... 67
Other Sub Tab ............................................................................... 67
Hiway (Highway) Tab ............................................................. 68
Temp (Temperature) Tab ....................................................... 68
Sonar Tab ............................................................................... 68
Systm (System) Tab .............................................................. 69
Units Tab ............................................................................... 70
Comm (Communications) Tab ............................................. 72
Alarm Tab ............................................................................... 76
Using Sonar .......................................................................78
Sonar Page ............................................................................. 78
Using the Adjustment Menu ......................................................... 79
Sonar Page Options ...................................................................... 83
Sonar Tab Options ................................................................ 85
Understanding Sonar ............................................................ 89
Understanding the Sonar Display ................................................. 89
Transducer Coverage .................................................................... 90
Whiteline ...................................................................................... 91
Thermoclines ................................................................................ 91
Appendix ............................................................................92
Specifications ........................................................................ 92
Installing the GPSMAP 188/188C Sounder ......................... 93
Mounting the GPSMAP 188/188C Sounder ......................... 94
Installing the Transducer ...................................................... 96
Connecting the Power/Data Cable ....................................... 98
Interfacing .............................................................................. 99
Installing and Removing Data Cards ................................. 100
Satellite Information ............................................................ 101
What is WAAS? .................................................................... 102
What is Differential GPS (DGPS)? ..................................... 102
What is Maritime Mobile Service Identity (MMSI)? ........... 103
How are MMSI Assignments Obtained? ............................ 103
Navigation Terms ................................................................ 104
Messages ............................................................................. 106
LORAN TD System .............................................................. 108
Optional Accessories .......................................................... 110
Software License Agreement ..............................................111
Product Registration ............................................................111
Limited Warranty ................................................................. 112
FCC Compliance .................................................................. 113
Safety Information ............................................................... 114
Index .................................................................................115