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Reference
Main Menu: Units Tab- Loran TD
To setup Loran TD from the Main Menu:
1. Using the ARROW KEYPAD, highlight the “Units” tab and then the “Position Format” fi eld press
ENTER/MARK. You may also press the ‘Loran TD On’ SOFT KEY from the “Units” tab .(If you use ‘Loran
TD On’, skip to step 3.)
2. Highlight ‘Loran TD’, press ENTER/MARK, then press the ‘Grid Setup’ SOFT KEY.
3. To change the settings of any of the fi ve fi elds, highlight the fi eld, press ENTER/MARK, select/enter the
desired setting using the DATA ENTRY keys and press ENTER/MARK.
4. When done, press the QUIT key to return to the Main Menu.
5. To return to the previous position format, press the ‘Loran TD Off’ SOFT KEY.
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 GPS is not relying on the LORAN signal for navigation and
actually converts the TD coordinate to a useful LAT/LON coordinate (in the background) 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.
For more information on Loran TDs, you may download GARMIN’s “Loran TD Position Format
Handbook” from the GARMIN web site at http://www.garmin.com/support/userManual.html.
Loran TD Setup Page
Selecting the Loran Chain Number.
