Appendix A Terms - AvMap EKP III C User Manual

Appendix A Terms

THIS SECTION EXPLAINS THE TERMS THAT YOU MAY FIND UNFAMILIAR
ACQUISITION
AIRPORT DATABASE
ALMANAC
ALT
ARTCC
ATTENTION AREAS
ATIS
AUTOMATIC MODE
AUTOMATIC SWITCHING
AUTO ZOOM (mode)
AWOS
AZIMUTH
BATHYMETRIC LINES
BEACON
BISECTOR
BRG
CDI
COG
CONSTELLATION
COORDINATES
COURSE
CTAF
CULTURAL FEATURES
CURSOR (mode)
DATA WINDOW
DATABASE
DATUM
DEFAULT
DEGREE
DGPS
DME
EKP III USER MANUAL
Occurs when the EKP-III locates a signal and collects data from a satellite.
A series of files of airport positions (described near the geographical center of the airport and as defined by
ICAO), with runways, frequencies (with sectors) and services available information. Based on the ARINC 424
format for Jeppesen's Database.
Data on the general location and health of all satellites in the GPS constellation. Can be collected from any
available satellite in about 15 minutes.
ALTITUDE - Height above mean sea level. Density Altitude and the Altitude computed by a GPS receiver
may differ due to the effects of selective availability.
AIR ROUTE TRAFFIC CONTROL CENTER
Areas in which special attention by the mariner is required, because of natural or man-made hazards, or
sailing regulations and restrictions. Moreover a special symbol (!) is placed inside the area selecting On' or '
Contour' options. This is valid also for the categories: FISHING FACILITY, MARINE FARM/CULTURE,
MILITARY PRACTICE AREA, RESTRICTED AREA, SEAPLANE LANDING AREA. When the area is small,
it is identified only by the boundary.
AUTOMATIC TERMINAL INFORMATION SERVICE - Recorded information about weather and other
conditions at an airport, periodically updated when conditions change.
The mode of operation that uses 2D or 3D, depending on the number of available satellites
(preference is given to 3D; LAT, LON and ALT).
Flight Plans automatically switch from one leg to the next when the Waypoint is reached.
The Auto Zoom mode is used to display fix position and destination (Target) always visible on the map. The
map is scrolled and zoomed automatically to have the best view displaying fix and destination together on the
screen. When this mode is active the cursor is hidden.
Automatic Weather Observation Station
Bearing measured clockwise from true or magnetic north.
Imaginary lines connecting points of equal water depth.
An airport rotating beacon (white or white and green).
A straight line that divides an angle into two equal parts.
BEARING - The horizontal direction of a destination or Waypoint measured in relation to true or magnetic north.
COURSE DEVIATION INDICATOR - A graphical representation of Cross Track Error (XTE) showing
distance left or right of course. An airplane icon indicates the direction of relative motion, toward or away from
the intended Track.
COURSE OVER GROUND - Direction of the path over ground actually followed.
The satellites in the Global Positioning System (GPS). Positioned in six orbital planes approximately 11,000 NM
above the earth.
A Latitude and Longitude position that corresponds to a specific point on the earth's surface.
The planned line of travel: the line between your start position and the destination.
Common Traffic Advisory Frequency - May be Unicom, Multicom or Tower Frequency.
Any man-made topographic feature as built-up area, buildings, roads, ...
In Cursor mode the screen is controlled by your movement of the cursor. When in Cursor mode, a data field
line will appear under the Data Window providing LAT/LON of the cursor position. If a fix has been computed,
a distance and bearing will also appear from the position fix to the cursor. In this mode it is possible to scroll
on the map such that the position fix will not be displayed on the screen. When this occurs, you can quickly
display your position by activating Home mode.
Data Window is an information panel representing customized data fields. The layout of these fields depends
on the screen mode.
A collection of data that can be accessed by the user for airports, VORs, NDBs, Intersections and User Waypoints.
A method of assigning position coordinates to real-world locations. Based on an underlying ellipsoidal model
of the earth and subject to other scientific assumptions. Identified by a unique name, such as WGS84 or NAD27.
The value or setting automatically chosen by the EKP-III unless directed otherwise.
1/360th of a circle. On a Great Circle, 1° = 60 min.
DIFFERENTIAL GPS - Provides even greater positioning accuracy than standard GPS.
Distance Measuring Equipment
105