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Navigation Setup
The navigation setup page is used to select units of
measurement for position format, map datum, CDI
scale, and distance, speed and heading information.
Position Formats
The default position setting for the GPS 120XL is
latitude and longitude in degrees and minutes
(hdddºmm.mmm’). You may also select degrees, min-
utes and seconds (hdddºmm’ss.s’’); degrees only
(hddd.dddddº); UTM/UPS coordinates; or British,
German, Irish, Maidenhead, Swedish, Swiss or Taiwan
grid formats.
To select a position format:
1. Highlight the ‘POSITION FRMT’ field and press
F
.
2. Use the
U
and
D
keys to select the desired set-
ting. Confirm the setting by pressing
F
.
Map Datums
The map datum field is located just below the posi-
tion format field, and comes with a WGS 84 default set-
ting. Although 104 total map datums are available for
use (see the map datum listing in appendix B), you
should only change the datum if you are using maps or
charts that specify a different datum than WGS 84.
To select a map datum:
1. Highlight the ‘MAP DATUM’ field and press
F
.
2. Use the
U
and
D
keys to toggle through and
select the desired setting. Confirm the setting by
pressing
F
.
Navigation
Setup
REFERENCE
48
The position format may be
set to display your choice of
many formats. Note: degree
and minutes is the default
setting..
Use any of the 106 separate
map datums to maximize
the operation of the GPS
120XL with your specific
map or chart.
120XL Man RevB 7/10/98 10:55 AM Page 48