Cdi Scale; Magnetic Variation - Garmin 55 AVD Owner's Manual

To select navigation units...
· Press MORE to select the desired combination of distance, speed,
and altitude units. You may select from Nautical units (nm, kt, ft),
Statute units (mi, mh, ft), or Metric units (km, kh, mt).

4.7 CDI SCALE

The GPS 55 allows you to set the scale for the CDI displayed on the CDI Page
(see Section 3.5). The CDI scale refers to the distance that is represented
by the CDI. For example, if your CDI scale is set to 1.0 nautical mile, the ends
of the CDI represent left and right 1.0 nautical mile of cross track error.
To set the CDI scale...
· With the cursor under the CDI scale field, enter the desired value.

4.8 MAGNETIC VARIATION

Magnetic
Variation
The GPS 55 offers you three magnetic variation options. You may select
true, automatic magnetic, or user magnetic heading correction for all track,
course, and heading information. If you select true heading, all information
displayed on other pages will be referenced to the true North pole. If you
select automatic magnetic heading, all information will be corrected with the
magnetic variation computed by the GPS 55. If you select user magnetic
heading, all information will be corrected by the magnetic variation you enter.
CDI SCALE PAGE
MAGNETIC VARIATION PAGE
CDI Scale
Heading Mode
Select
4-5