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Magellan GPS Tracker 73
A UTM position is described by three elements; the zone it is in, the
easting, and the northing. Eastings and northings measure how far into a
zone a position is in meters. Eastings are an east/west measurement, and
correspond roughly to longitude. Northings are a north/south measure-
ment, and correspond to latitude.
This chart shows the position of Magellan Systems described in both Lat/
Lon and UTM coordinates.
LAT/LON UTM
DEG/MIN DEG/MIN/SEC
34˚06.58N 34˚06’35"N 11 4 23 818 E
117˚49.56W 117˚49’34"W 37
74 624 N
1511 121314
3000 Km
3000 Mi.
Scale at the Equator.
12345
180°
150°
10
120° 90°
20
60°
25
30°
30
0°
35
30°
40
60°
45
90°
50
120°
55
150°
60
180°
0°
NOTE: The area described by the UTM coordinate system extends to 84°N and to 80°S.
6789 16171819 2122232426272829 31323334 36373839 41424344 46474849 51525354 56575859
Other Coordinate Systems. OSGB coordinates are similar to UTMs, but
they describe only Great Britain. They must be used with the GRB36
datum, which also describes Great Britain. This coordinate system cannot
be used in any other part of the world. The GPS ColorTRAK automati-
cally selects the GRB36 datum when the OSGB coordinate system is se-
lected in Setup. (While OSGB coordinates must be used with the GRB36
datum, the GRB36 datum can be used with LAT/LON coordinates; just
be sure the map you are using uses both LAT/LON and GRB36.)
If you select OSGB in the COORD SYS portion of the Setup
Menu be sure to change the map datum back to the one you
will be using (WGS84 is the default) when changing to
another coordinate system.
Irish Grid uses the Ireland datum, Swedish Grid uses the RT90 datum,
and Swiss Grid uses the Swiss datum. Under USER DATUM you may
also use another datum you are familiar with (but which is not listed).