To set up Loran TD from the Main Menu:
1. Highlight the
Setup
tab on the Main Menu, and then highlight
the
Location
sub tab.
2. Highlight the
Location Format
field and press
ENTER
.
Location Sub Tab
3. Highlight
Loran TD
, and press
ENTER
.
4. Highlight the
Setup
button located on the right side of the
Location Format
field and press
ENTER
. The Loran TD
Setup window appears.
5. To change the settings of any of the five fields, highlight
the field, press
ENTER,
select a setting, and press
ENTER
again.
LORAN TD Setup
6. When finished, highlight the
Save
button, and press
ENTER
.
If the active GRI Chain, secondary stations, or offsets were changed
since the waypoint was created, the waypoint now references
the active GRI chain and secondary stations and adjusts 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 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.
For more information on LORAN TDs, you can download the
LORAN TD Position Format Handbook
from the Garmin Web site.
GPSMAP 378/478 Owner’s Manual
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