66 GPSMAP 496 Owner’s ManualAppendix > Loran TD SetupTo set up LORAN TD from the Main Menu:1. Press MENU twice to show the Main Menu.2. Use the ROCKER to highlight Setup on the vertical tab list. Thenselect Location from the row of horizontal tabs.3. Using the ROCKER, highlight the Location Format field andpress ENTER.Location Sub Tab4. Highlight Loran TD, and press ENTER.5. Highlight the Setup button located on the right side of theLocation Format field, and press ENTER. The Loran TD Setupwindow appears.6. To change the settings of any of the five fields, highlight the field,press ENTER, enter the setting using the ROCKER, and pressENTER.7. When finished, highlight the Save button, and press ENTER.LORAN TD SetupIf the active GRI Chain, secondary stations, or offsets were changedsince the waypoint was created, the waypoint now referencesthe active GRI chain and secondary stations and adjust the TDcoordinates accordingly. Remember that the GPS is not relyingon the LORAN signal for navigation and actually converts theTD coordinate to a useful latitude and longitude coordinate beforestoring the waypoint to memory or using it for navigation. Becauseof this, the unit can navigate to a TD coordinate anywhere in theworld.You must know your GRI chain number and/or secondary stationsto create a LORAN TD location. For more information read ourLORAN TD Position Format Handbook, available at the GarminWeb site, at www.garmin.com/support/userManual.jsp.
