2 GPSMAP 176/176C Owner’s ManualINTRODUCTION > TABLE OF CONTENTSCelestial (Celes) Tab ............................................................. 58Tide Tab ........................................................................................ 58Sun & Moon Tab .......................................................................... 61Hunt & Fish Tab ........................................................................... 62Map Tab .................................................................................. 63General Tab ................................................................................... 63Map Tab ........................................................................................ 63Waypoint Tab ................................................................................ 64Point Tab ....................................................................................... 64Marine Tab .................................................................................... 64Navaids Tab .................................................................................. 65Line Tab ........................................................................................ 65Track Tab ...................................................................................... 66Area Tab........................................................................................ 66Topo Tab ....................................................................................... 66City Tab ........................................................................................ 67Road Tab ....................................................................................... 67Other Tab ...................................................................................... 68Setup Map Menu Options ............................................................. 68Setup Tab ............................................................................... 69System Tab.................................................................................... 69Time Tab ....................................................................................... 70Units Tab ....................................................................................... 71Location Tab ................................................................................. 71Interface Tab ................................................................................. 74Appendix ............................................................................78Specifications ........................................................................ 78Connecting the Power/Data .................................................. 79Interfacing .............................................................................. 79Satellite Information .............................................................. 80What is WAAS? ...................................................................... 81What is Differential GPS (DGPS)? ....................................... 81Map Datums ........................................................................... 82Navigation Terms .................................................................. 84Messages ............................................................................... 86LORAN TD System ................................................................ 88Optional Accessories ............................................................ 90Software License Agreement ............................................... 91Product Registration ............................................................. 91Limited Warranty ................................................................... 92FCC Compliance .................................................................... 93Safety Information ................................................................. 94Index ...................................................................................95