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LIST key. A valid entry will advance the cursor to the RADIAL field.
A valid radial entry will blank the DIST field at [3L]. The coordinates
will be computed and displayed at [2R] using the two radial entries
(theta/theta). Theta/theta position computation will compute and
display the distance at [3L]. The ACCEPT option will appear after
the name and coordinates for the waypoint have been defined at
[2R].
ACCEPT - When valid coordinates are displayed for the WPT
position, this option will become available. The ACCEPT line select
key must be pressed twice to enter the defined waypoint into the
data base.
WPT - The name of the waypoint being created or modified. The
coordinate fields will be prefilled if waypoint is being modified
otherwise it will be blank.
WPT Coordinates - This field shows the coordinates of the waypoint
being defined. Position coordinates may be entered into this field
directly or the field will display coordinates resulting from the
reference waypoint computation.
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GPS POS - Pressing this line select key will accept, at the instant it
is pressed, the GPS present position coordinates to define the
position of the waypoint.
FMS# POS - Pressing this line select key will accept, at the instant it
is pressed, the FMS present position coordinates to define the
position of the waypoint.
Pilot Defined Waypoints
The PLT WPTS page(s) is accessed from the Data Base menu page
(DATA page 1) by selecting the PILOT DATA and then WPTS
option. When the page is accessed, a list of all pilot defined
waypoints stored in the data base will be presented alphabetically.
The PREV and NEXT keys provide access to other PLT WPTS
pages.
Entry of an identifier in the WPT field will cause the DEFINE WPT
page to be displayed. A maximum of five characters can be used to
identify a pilot waypoint.
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Data Base
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Define Position Pages
The DEFINE POSITION pages provide the means to define the
coordinate location of a pilot defined airport, align point, or waypoint
by directly entering the coordinates, by selecting FMS or GPS
present position coordinates, or by defining the position in reference
to another known waypoint location. The page title will reflect the
category of waypoint being defined (ALIGN, ARPT, WPT, POS).
The DEFINE ALIGN Page is accessed by entering on undefined
align point on the Initialization page, from the Position Menu page
(line select key [2L]) or from the pilot defined alignment points
directory and identification pages when MODIFY is selectable.
The DEFINE POS page is accessed by pressing the FMS position
field line select key on the NAV 2/2 page or the DATA 3/5 page.
Positions, including waypoints, align points and airports can be
defined by any of five different methods:
1. Latitude/Longitude, where the coordinates of the pilot defined
waypoint are entered directly.
2. Radial/Distance, where a reference waypoint (which can be a
waypoint, VOR, NDB or airport) is identified and a
radial/distance offset is specified.
3. Radial/Radial, where two reference waypoints are identified,
and the radial from each is specified. This method is useful, for
example, in identifying the unnamed intersection of two airways.
4. GPS Position, where the present GPS position data are used to
define the waypoint.
5. FMS Position, where the present FMS position data (best
computed position) are used to define the waypoint.
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To define a position by Latitude/Longitude:
1. Press the [2R] line select key to highlight the latitude field.
2. Enter the latitude (using the ± key as necessary to toggle the
hemisphere between N and S) press ENTER.
3. The cursor will be expanded to enclose the longitude field.
4. Enter the longitude (again, the ± key will toggle the hemisphere
between E and W) press ENTER.
5. The legend ACCEPT WPT will appear in the cursor block next to
the [5L] line select key. Press either the [5L] line select key, or
the ENTER key.
NOTE: The MENU key will provide the option of changing the
entry resolution between tenths or arc-minutes, and
hundredths of arc-minutes.
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To define a position by Radial/Distance:
1. The cursor will appear over the REF WPT field when the Define
Position page is accessed. Enter the name of the waypoint,
navaid or airport from which the new waypoint will be derived.
Press ENTER.
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