Garmin GPSMAP 292 Owner's Manual page 73

• Distance, Speed and Elevation—allows you to select the
units of measure for distance, speed, and elevation readouts
in Nautical (nm, kt, ft), Nautical (nm, kt, m), Statute (mi,
mh, ft), or Metric (km, kh, m) terms.
• Heading—selects the reference used in calculating heading
information. You can select from Auto Mag Var, True,
Grid, and User Mag Var. Auto Mag Var provides magnetic
north heading references that are automatically determined
from your current location. True provides headings based
on a true north reference. Grid provides headings based on a
grid north reference (and is used in conjunction with the grid
position formats described on
you to specify the magnetic variation at your current location
and provides magnetic north heading references based on the
variation you enter.
GPSMAP 292/298 Owner's Manual
page 70). User Mag Var allows
To enter a user defined magnetic variation:
1. With the Heading field set to User Mag Var, highlight the
heading reference field (immediately to the right), and press
ENTER.
2. Use the ROCKER to enter the magnetic variation at your
current location and press ENTER.
WARNING: If User Mag Var is selected, you must
periodically update the magnetic variation as your location
changes. Using this setting, the unit does not automatically
calculate and update the magnetic variation at your present
location. Failure to update this setting can result in substantial
differences between the information shown on your unit and
external references, such as a magnetic compass.
M M > S (S ) T
AIN ENU YSTM YSTEM
Manually enter a
magnetic variation.
AB
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