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If the GPS 100 is not navigating to a waypoint (i.e., there is no “active to”
waypoint), the CDI area will indicate this condition as illustrated below.
The cyclic fields, indicated by the “>” character, can be used to select the type
of information you wish to see. To use a cyclic field, place the cursor to the
right of the “>” and press the CLR key.
You may select one of two velocity options:
· GS - Ground speed. GS is the speed measured relative to the
ground; also known as velocity over ground (VOG).
· VMG- Velocity made good. VMG is velocity in the direction of the
desired course. It is the speed at which you are closing on
the “active to” waypoint.
You may select one of six direction options:
· CMG- Course made good. CMG is the bearing from the “active
from” waypoint to your position.
· TRK- Track. TRK is the direction of movement relative to the
ground.
· BRG- Bearing. BRG is the direction from your position to the
“active to”waypoint.
· TRN- Off course error. “L” indicates you should turn to the left, “R”
indicate you should turn to the right. The degrees indicate
the angle you are off course.
· CTS- Course to steer. CTS is the recommended direction to steer
in order to reduce cross track error and stay on course (see
Section 12.3 for an example using CTS).
· DTK- Desired track. DTK is the course between the “active from”
and “active to” waypoints.
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