The second page available from the GPS 155’s WPT key is the
proximity way-
points page
. This page allows you to define an alarm circle around a selected way-
point, and is useful in defining alarm circles around towers or obstructions. Up to 9
proximity waypoints can be entered, with an alarm radius up to 99.9 units (nm, mi,).
To create or edit a proximity waypoint:
1. Press
W
and use
O
to display the ‘Proximity waypoints’ page.
2. Press
C
and use
O
to highlight the first available field.
4. Use
K
and
O
to enter the identifier. It may be an airport, VOR, NDB, INT or user
waypoint. Press
E
.
5. Use
K
and
O
to enter the radius of the alarm circle Press
E
.
If two proximity waypoints, whose alert regions overlap, are entered, you will be
informed with the message ‘Proximity overlap’. This message will be displayed each
time you turn on the GPS 155 as long as the overlap remains.
WARNING:
If you
enter the overlap area you will only be informed of the
nearest
proximity waypoint.
To remove a waypoint from the proximity waypoints page:
1. Press
C
, if necessary, to obtain a cursor.
2. Press
\
to erase the name and then
E
to delete.
To scroll through the proximity waypoints list:
1. Rotate
K
with the flashing cursor inactive, (or use
O
with the flashing cursor active) to
scroll through the available proximity waypoints. The scrolling arrow prompt will indicate
the direction to scroll to view additional waypoints, if available.
39
WAYPOINTS & DATABASE
Proximity Waypoints Page
Creating a proximity waypoint.
Proximity Waypoint List.
155man (GOOD) 7/24/98 1:56 PM Page 39
Summary of Contents for GPS 155/165 TSO
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