GPSMAP 2106/2110 Owner’s Manual 95INDEXINDEXSymbols200 kHz frequency 722X zoom 774X zoom 7750 kHz frequency 72AA-scope 77accessories 92accuracy 6accuracy circle 68acquiring satellites 5active track log 50ADJ/MENU key 2advanced map card setup 69alarmsnavigation 57system 57Alarms tab 56anchor drag 57arches 73arrival alarm 57AutoLocate 6automatic backlight 58Bbacklight 4, 58adjusting 4basic operation 8battery alarm 57Bearing pointer 40beeper 59BlueChart 11BlueChart g2 36, 92bottom of the water 73btm (bottom) lock 77CCard tab 54cartography 36Celestial tab 47chart 67cleaning 87clock alarm 57clutter 73color 73color bar 77color gain 76Comm tab 61Compass Page 40course up 66createroutes 24waypoints 13creating waypointsgraphically 13manually 14currents 46DDATA/CNFG key 2data cardsinstalling 83removing 83transferring data to/from 55data card slots 1data entry keys 3using 9data felds 32data transfer 62datums 60daylight saving 61Declaration of Conformity (DoC) 94deep water alarm 58default settings 8deleteroutes 26tracks 51waypoints 17delete by symbol 17depth 60depth line 77digital data fields 32digital selective calling. See DSCDilution of Precision 88distance units 60distress calls 85DOP 88DSC 52, 85directory 53distress call 52, 86log 52position report 52, 86setup 54DSC Item Review 53DSC tab 52dual beam 72dual frequency 72Eeditroutes 26waypoints 15elevation units 60ENTER/MARK key 2, 13entering data 9Ffactory defaults 32, 59FCC compliance 94FIND key 2fish symbols 74, 80flasher 75follow track 20frequency 77200 kHz 7250 kHz 72function adjustments 33function windows 33Ggain 76gain setting 73Go To Point 20GPS accuracy alarm 57GPS receiverinitializing 5GPS status icon 5GPS tab 5, 43GSD 20 i, 58, 72GSD 21 58, 72GSD 22 i, 58, 72Hhardness of the bottom 73hard structure 73heading 60highlight 8Highway Page 41options 41Iinstallation iinvert route 25