Setup Tab - Garmin GPSMAP GPSMAP 196 Pilot's Manual & Reference

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Setup Tab

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Location screen settings will affect how navigation information is
displayed on the GPSMAP 196. 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
196 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, north reference and units of measure are
being used for the map or chart.
Location Tab
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Location
Location Format— used to change the coordinate system in which a given position reading is dis-
played. The default format is latitude/longitude in degrees and decimal minutes (hddd°mm.mmm').
The following additional formats are available:
• hddd.ddddd°— latitude/longitude in decimal degrees only
• hddd°mm' s s.s"— latitude/longitude in degrees, minutes, seconds
• UTM/UPS— Universal Transverse Mercator / Universal Polar Stereographic grids
• British Grid • Dutch Grid
• Irish Grid • India Zone Grids
• New Zealand • Qatar Grid
• Swiss Grid • Taiwan Grid
• W Malayan RSO
Map Datum— allows you to manually select the datum reference used to determine a given position.
The default setting is 'WGS 84'. The GPSMAP 196 will automatically choose the best datum depend-
ing upon your chosen position format. You should only change the datum if you are using a map or
chart that specifi es a different datum and you want position readings on the unit to correspond with
position readings on the chart. Datums are used to describe geographic positions for surveying, map-
ping, and navigation and are not actual maps built into the unit. The GPSMAP 196 contains over 100
map datums.
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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.
• Finnish KKJ27 • German Grid
• Maidenhead • MGRS
• RT 90 • Swedish Grid
• Loran TD • User Grid