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66 Rino
®
110 Owner’s Manual
UNIT OPERATION > SETUP PAGES
Map Datum—offers a selection of nearly all map datums
in common use. Every map is based on a map datum (a
reference model of the earth’s shape) and is usually listed
in the title block of the map. If you are comparing GPS
coordinates to a paper map, chart, or other reference, the
map datum in this field must match the horizontal map
datum used to generate the map or other reference. The
default datum is WGS-84 (World Geodetic Survey 1984)
and should only be changed when using maps or charts
specifying a different datum. If a map does specify a
datum, use the options list to find datums applicable to
the region of the map, selecting the one that provides the
best positioning at a known point. If necessary, you also
may choose the User datum for custom designed grids.
NOTE: The User datum is based on a WGS-84-Lo-
cal datum and is an advanced feature for unlisted
or custom datums. To learn more, check your local
library or the Internet for educational materials on
datums and coordinate systems.
Distance/Speed—choose from three units of measure to
display your rate of travel.
Elevation/Vertical Speed
—choose from two units of
measure to record your elevation and vertical speed.
Display Setup Page
You can adjust the amount of time that the backlighting
feature stays on and adjust the screen contrast.
Backlighting Timeout
—choose from Stays On or delays
of 15 seconds, 30 seconds, one minute, or two minutes
before timing out.
Contrast Adjustment
—can be adjusted from light to
dark using the slider adjacent to the contrast bar.