Garmin 192c Manuale Proprietario

GPSMAP 192C Owner’s Manual

AIN

ENU

NITS

Units Tab

The Unit tab deﬁnes the Position Format, Map Datum, Heading,

Distance, Speed, Elevation, Depth, and Temperature units.
The following settings are available:

• Position Format—changes the coordinate system. You

should only change the position format if you are using a

map or chart that speciﬁes a different position format or want

to use a format you are familiar with.

For additional information on Loran TD setup, see pages

108

NOTE: The Units tab settings affects how navigation

information is displayed on the GPSMAP 192C. When in doubt,

seek assistance.

If you are using a map or chart in conjunction with your

GPS, make sure the settings under the Units tab of the

GPSMAP 192C match that of the map or chart. This

information should be displayed somewhere on the map or

chart. If the information is not present, contact the map or

chart maker to determine what position format, datum, heading

and units of measure are being used for the map or chart.

• Map Datum—sets the datum reference used to determine

a given location. The default setting is WGS 84. The

unit automatically chooses the best datum depending on

your chosen position format. Datums are used to describe

geographic locations for surveying, mapping, and navigation.

You should only change the datum if you are using a map or

chart that speciﬁes a different datum.

WARNING: Selecting the wrong map datum can result in

substantial position errors. Unless otherwise speciﬁed by

the navigation documentation you are using, use the default

WGS 84 datum for best overall performance.