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The military grid reference system (MGRS) uses two grid-lettering
schemes, referred to as standard and alternate MGRS on this unit.
Your position and datum in use determines which one to use. If you use
standard, and your position is off significantly, then try the alternate
MGRS.
NOTE: When the position format is changed, it affects the way all posi-
tions are shown on all screens. This includes waypoints.
To select a coordinate system:
1. Press
MENU|MENU|↓ to GPS SETUP|ENT|↓ to COORDINATE SYS-
TEM
|ENT|ENT. Press the ↑ or ↓ arrow keys to highlight the desired for-
mat. Press
ENT to select it.
To setup Loran TD:
1. From the Coordinate System menu, press ↓ to
SETUP LORAN TD and
press
ENT.
NOTE:
If the Loran TD conversion is chosen, you must enter the local Lo-
ran chain identification for the master and slaves.
Configure Loran TD menu.
To access the Loran Chain Number, Secondary Station 1 or Secondary
Station 2 menus, highlight the category and press
ENT. Use the ↑ ↓
keys to choose the desired setting and press
ENT. Press EXIT to close the
menu.
Map Fix
Map Fix is used with charts or maps. This system asks for a reference
position in latitude/longitude, which you take from a marked location
on the map. It then shows the present position as distance on the map
from that reference point. For example, if it shows a distance of UP
4.00" and LEFT 0.50", you then measure up four inches and to the left a
half-inch from the reference point on the map to find your location.