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(Universal Transverse Mercator) projection; MGRS (Standard); MGRS
(Standard + 10); Map Fix; Loran TD; British, Irish, Finnish, German,
New Zealand, Swedish, Swiss, Taiwan and Greek.
UTM's are marked on USGS topographic charts. This system divides
the Earth into 60 zones, each 6 degrees wide in longitude.
British, Irish, Finnish, German, New Zealand, Swedish, Swiss, Taiwan,
and Greek grid systems are the national coordinate system used only in
their respective countries. In order to use these grid systems, you must
be in the respective country. This unit will pick the matching datum for
you when you select the grid. See the entry on Map Datum Selection for
more information.
The Military Grid Reference System (MGRS) uses two grid lettering
schemes, which are referred to as standard and standard + 10 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.
NOTE:
When the position format is changed, it affects the way all positions
are shown on all screens. This includes waypoints.
To change the coordinate system
1. Press
ENT while COORDINATE SYSTEM is highlighted.
2. Use ↑ ↓ to highlight the desired format and press
ENT. Press EXIT
repeatedly to return to the map display.
To set up Loran TD:
If the Loran TD conversion is chosen, you must enter the local Loran
chain identification for the master and slaves. Highlight
SETUP LORAN TD
at the bottom of the Coordinate System menu and select the ID. Press
EXIT to close this menu.