User Guide

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.