GPSMAP 76Cx Owner’s Manual 81
APPENDIX > MAP DATUMS AND LOCATION FORMATS
Loran TD Setup
To set up Loran TD from the Setup Menu:
1. Press MENU twice to open the Main Menu.
2. Use the ROCKER to highlight the Setup icon,
and press ENTER to open the Setup Menu.
3. Use the ROCKER to highlight the Units icon
and press ENTER to open the Units Setup
Page.
4. Highlight the Position Format field and press
ENTER to open the format list.
5. Highlight Loran TD, and press ENTER to open
the Loran TD Page.
6. To change the settings of any of the five fields,
highlight the field, press ENTER select/enter
the setting, then press ENTER.
7. When finished, highlight Save, and press
ENTER
If the active GRI Chain, secondary stations, or offsets
have been changed since the waypoint was created,
the waypoint will now reference the active GRI-chain
and secondary stations and adjust the TD coordinates
accordingly. Remember that the GPSMAP 76Cx
is not relying on the LORAN signal for navigation
and actually converts the TD coordinate to a useful
latitude and longitude coordinate before storing
the waypoint to memory or using it for navigation.
Because of this, the unit can navigate to a TD
coordinate anywhere in the world.
You must know your GRI chain number and
secondary stations to create a LORAN TD position.
For more information, read our LORAN TD Position
Format Handbook, available on the Garmin Web site,
at www.garmin.com/support/userManual.jsp.
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