Magellan GPS PROMARK X, User Manual

Page: 81 / 188

Waypoints, Routes & Navigation ProMARK X
5-11
Navigation information (bearing, distance, direction of travel) is available
only if a route has been activated.
Velocity information (speed, time of arrival) is available whenever you have
reached a minimum speed of 2 kilometers per hour, whether you have an
active route or not. Since velocity-related information is based on instanta-
neous speed, you may notice some fluctuation in the values displayed. This
effect can be “smoothed” by using velocity average to substitute a weighted
average for the instantaneous measurement. Refer to SETUP to use velocity
average.
If you are navigating on a route, three messages are displayed at the bottom
of the screen that indicate how close you are to the TO-waypoint: CLOSE,
ARRIVED, and COMPLETE. (Refer to
SETUP, Choosing a Leg Switching Mode
during this discussion.) CLOSE is displayed when you enter the arrival circle
around the leg’s destination. If the leg switching mode is set to manual, the
unit displays ARRIVED when the perpendicular that intersects the TO-
waypoint is crossed. (If the leg switching mode is set to automatic, crossing
this line causes the unit to switch legs.) COMPLETE is displayed when you
enter the arrival circle for the route's destination.
Navigation information is displayed on four screens; all four display the
destination waypoint of the current leg on the fourth line, and the bearing/
distance to the waypoint on the first line. (All distances are great circle.) The
fifth screen displays your rate and direction of travel.
Press NAV . The first screen dis-
plays the “to” waypoint on the first
line. Bearing to and great circle
distance from the destination
waypoint are on the second line.
The third line displays the cross
track error, which is abbreviated as
“XTE.” The information on the
second and third lines will be up-
dated as you travel. The fourth line
indicates the current route and leg.
XTE (cross track error), on the third line of the sample screen above, is the
length of the perpendicular between your present position and the courseline.
It is described as being to the right or left of the courseline, facing the
destination.
TO CLIF
120`M 22.01Km
XTE 0.68Km RIGHT
R 1 LEG 19 ~!