Garmin gpsmap 162 Manuale Utente
64
Reference
Main Menu:
Units Tab
Units Tab— defi nes Position Format, Map Datum, Heading, Distance, Speed, Elevation, Depth and
Temperature.
Temperature.
The following settings are available:
• Position Format— is used to change the coordinate system in which a given position reading
is displayed. You should only change the position format if you are using a map or chart
that specifi es a different position format or wish to use a format you are familiar with. The
default format is latitude and longitude in degrees, minutes, and thousandths of a minute
(hddd°mm.mmm’). The following additional formats are available:
that specifi es a different position format or wish to use a format you are familiar with. The
default format is latitude and longitude in degrees, minutes, and thousandths of a minute
(hddd°mm.mmm’). The following additional formats are available:
• hddd.ddddd°— latitude/longitude in decimal degrees only
• hddd°mm’ss.s”— latitude/longitude in degrees, minutes, seconds
• UTM/UPS— Universal Transverse Mercator / Universal Polar Stereographic grids
• British Grid
• Dutch Grid
• Finnish KKJ27
• German Grid
• Irish Grid
• Maidenhead
• MGRS
• New Zealand
• Qatar Grid
• Swedish Grid
• Swiss Grid
• Taiwan Grid
• Loran TD
• User Grid
• W Malayan RSO
For additional information on Loran TD setup, see pages 72-73.
• Map Datum— allows you to select the datum reference used to determine a given position. The
default setting is ‘WGS 84’. Datums are used to describe geographic positions for surveying,
mapping, and navigation and are not actual maps built in the unit. Although over 100 datums
are available (as listed on pages 77-78), you should only change the datum if you are using a
map or chart that specifi es a different datum.
mapping, and navigation and are not actual maps built in the unit. Although over 100 datums
are available (as listed on pages 77-78), you should only change the datum if you are using a
map or chart that specifi es a different datum.
WARNING: Selecting the wrong map datum can result in substantial position errors.
When in doubt, use the default WGS 84 datum for best overall performance.
When in doubt, use the default WGS 84 datum for best overall performance.
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The Units tab settings will affect how navigation information
is displayed on the GPSMAP 162. 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 162 match that of the map or chart. This informa-
tion 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.
is displayed on the GPSMAP 162. 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 162 match that of the map or chart. This informa-
tion 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.
I
Units Tab