iv GPSMAP 2106/2110 Owner’s ManualINTRODUCTION > TABLE OF CONTENTSAppendix ................................................................................................ 82Specifications ............................................................................................... 82Installing and Removing Data Cards .......................................................... 83What is WAAS/EGNOS? ............................................................................... 84WAAS Capability .......................................................................................... 84Digital Selective Calling (DSC) .................................................................... 85What is DSC? .........................................................................................................85LORAN TD System ....................................................................................... 86Caring for the GPSMAP 2106/2110 ............................................................. 87Navigation Terms ......................................................................................... 88Messages and Alarms .................................................................................. 90Optional Accessories ................................................................................... 92Limited Warranty .......................................................................................... 93FCC Compliance ........................................................................................... 94Declaration of Conformity (DoC) ................................................................ 94Index ....................................................................................................... 95