AvMap ekp iii c ユーザーズマニュアル
EKP III USER MANUAL
105
Appendix A Terms
THIS SECTION EXPLAINS THE TERMS THAT YOU MAY FIND UNFAMILIAR
ACQUISITION
Occurs when the EKP-III locates a signal and collects data from a satellite.
AIRPORT DATABASE
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.
ICAO), with runways, frequencies (with sectors) and services available information. Based on the ARINC 424
format for Jeppesen’s Database.
ALMANAC
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.
available satellite in about 15 minutes.
ALT
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.
may differ due to the effects of selective availability.
ARTCC
AIR ROUTE TRAFFIC CONTROL CENTER
ATTENTION AREAS
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.
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.
ATIS
AUTOMATIC TERMINAL INFORMATION SERVICE - Recorded information about weather and other
conditions at an airport, periodically updated when conditions change.
conditions at an airport, periodically updated when conditions change.
AUTOMATIC MODE
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).
(preference is given to 3D; LAT, LON and ALT).
AUTOMATIC SWITCHING
Flight Plans automatically switch from one leg to the next when the Waypoint is reached.
AUTO ZOOM (mode)
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.
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.
AWOS
Automatic Weather Observation Station
AZIMUTH
Bearing measured clockwise from true or magnetic north.
BATHYMETRIC LINES
Imaginary lines connecting points of equal water depth.
BEACON
An airport rotating beacon (white or white and green).
BISECTOR
A straight line that divides an angle into two equal parts.
BRG
BEARING - The horizontal direction of a destination or Waypoint measured in relation to true or magnetic north.
CDI
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.
distance left or right of course. An airplane icon indicates the direction of relative motion, toward or away from
the intended Track.
COG
COURSE OVER GROUND - Direction of the path over ground actually followed.
CONSTELLATION
The satellites in the Global Positioning System (GPS). Positioned in six orbital planes approximately 11,000 NM
above the earth.
above the earth.
COORDINATES
A Latitude and Longitude position that corresponds to a specific point on the earth’s surface.
COURSE
The planned line of travel: the line between your start position and the destination.
CTAF
Common Traffic Advisory Frequency - May be Unicom, Multicom or Tower Frequency.
CULTURAL FEATURES
Any man-made topographic feature as built-up area, buildings, roads, ...
CURSOR (mode)
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.
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
Data Window is an information panel representing customized data fields. The layout of these fields depends
on the screen mode.
on the screen mode.
DATABASE
A collection of data that can be accessed by the user for airports, VORs, NDBs, Intersections and User Waypoints.
DATUM
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.
of the earth and subject to other scientific assumptions. Identified by a unique name, such as WGS84 or NAD27.
DEFAULT
The value or setting automatically chosen by the EKP-III unless directed otherwise.
DEGREE
1/360th of a circle. On a Great Circle, 1° = 60 min.
DGPS
DIFFERENTIAL GPS - Provides even greater positioning accuracy than standard GPS.
DME
Distance Measuring Equipment