AvMap ekp iii c ユーザーズマニュアル
NM
NAUTICAL MILE - A distance measurement equal to 6,076 feet or 1.15 Statute Miles. Also equal to one
Minute of Latitude.
Minute of Latitude.
NMEA
NATIONAL MARINE ELECTRONICS ASSOCIATION - Professional organization that defines and maintains
the standard serial format used by marine electronic navigation equipment and computer interfaces. NMEA
format has been adopted by parts of the avionics industry.
the standard serial format used by marine electronic navigation equipment and computer interfaces. NMEA
format has been adopted by parts of the avionics industry.
OFFSET
Distance away from desired course.
OSGB
ORDNANCE SURVEY OF GREAT BRITAIN - A Coordinate System describing only Great Britain. Generally
used with GBR36 datum, which also describes only Great Britain. This Coordinate System cannot be used in
any other part of the world.
used with GBR36 datum, which also describes only Great Britain. This Coordinate System cannot be used in
any other part of the world.
POSITION
A location that is obtained in real-time and expressed as coordinates. Sometimes called a fix. Also a
Waypoint location obtained from a chart or other source.
Waypoint location obtained from a chart or other source.
RECEIVER
The electronic components of the EKP-III that receive satellite signals.
RHUMB LINE
A constant true Heading between a starting point and a completion point.
RMS
ROOT MEAN SQUARE - A measurement of error that is: the square root of the average of the position
errors, squared.
errors, squared.
RTCM
RADIO TECHNICAL COMMITTEE MARITIME - The data format created by the Radio Technical Committee
Maritime (Special Committee 104) to transmit differential GPS corrections.
Maritime (Special Committee 104) to transmit differential GPS corrections.
SA
SELECTIVE AVAILABILITY - The degradation of the GPS data broadcast by the SPS (Standard Positioning
Service), the U.S. Government discontinued the use of SA in April 2000.
Service), the U.S. Government discontinued the use of SA in April 2000.
SIMULATION
Enables use of the EKP-III without a GPS fix.
SM
STATUTE MILE - A distance measurement equal to 5,280 feet or 0.87 Nautical Mile.
SOG
SPEED OVER GROUND - A calculation of the rate of movement over the ground.
SPS
STANDARD POSITIONING SERVICE - The civilian-access signal broadcast by the GPS satellites.
SQ
SIGNAL QUALITY - An indication of the signal-to-noise ratio of each satellite signal being used. Ranges
from 00 (lowest) to 99 (highest). A scale for indicating the strength of the signal and the likelihood of the lock
on the signal being lost.
from 00 (lowest) to 99 (highest). A scale for indicating the strength of the signal and the likelihood of the lock
on the signal being lost.
TCA
TERMINAL CONTROL AREA - Class B airspace.
TPA
TRAFFIC PATTERN ALTITUDE - The Altitude required when entering the traffic pattern.
TRACK
The historical movement over the ground.
TRACKS & ROUTES
Recommended and established routes for ships at sea, including traffic separation schemes, deep water routes.
TRUE NORTH
Geographic north, located at the earth’s north pole.
TTG
TIME TO GO - The estimated time needed to reach your destination, based on your current speed and the
distance to destination.
distance to destination.
TWR
TOWER FREQUENCY - The radio frequency for contacting the tower.
UNICOM
UNICOM FREQUENCY - Used for general traffic advisories. Provides airport information for non controlled
airports.
airports.
UTC
UNIVERSAL TIME - The current time at the Prime Meridian. Abbreviated as UT or UTC. Also ref. to as Zulu time (Z)
USER C-CARD
The EKP-III uses the optional User C-CARD to save user data: it is a convenient medium to store
and retrieve your information.
and retrieve your information.
USER WAYPOINT
Place on the chart identified by its coordinates and displayed on the screen with a reference symbol .
UTM
Universal Transverse Mercator - Metric Grid system used on most large and intermediate scale land
topographic charts and maps.
topographic charts and maps.
VDOP
Vertical Dilution Of Precision
VNAV
Vertical Navigation - The actual path of the aircraft descending to a final destination. Provides descent point,
Altitude and rate information.
Altitude and rate information.
VORTAC
A navaid that provides a VOR, DME and TACAN at one site.
WAAS
Wide Area Augmentation System - The Federal Aviation Administration (FAA), in cooperation with other DOT
organizations and DOD, is augmenting the GPS/SPS with a satellite-based augmentation system, the WAAS.
It will provide a signal-in-space to WAAS users to support en route through precision approach navigation.
After achieving initial operational capability, the WAAS will then be incrementally improved over the next years
to expand the area of coverage, increase the availability of precision approaches, increase signal redundancy
and reduce operational restrictions.
organizations and DOD, is augmenting the GPS/SPS with a satellite-based augmentation system, the WAAS.
It will provide a signal-in-space to WAAS users to support en route through precision approach navigation.
After achieving initial operational capability, the WAAS will then be incrementally improved over the next years
to expand the area of coverage, increase the availability of precision approaches, increase signal redundancy
and reduce operational restrictions.
WAYPOINT
Any point to which one intends to navigate. A sequence of Waypoints makes up a Flight Plan.
WGS84
World Geodetic System 1984 Coordinates System or Datum developed by the Defense Mapping Agency (DMA).
XTE
Cross Track Error - The perpendicular distance between the present position and the course line. Given as a
distance right or left of course when facing the destination. Displayed in NAV as XTE or on the CDI as a deflection.
distance right or left of course when facing the destination. Displayed in NAV as XTE or on the CDI as a deflection.
ZOOM IN
Shows more detail in a smaller area.
ZOOM OUT
Shows a wider area with less details.
EKP III USER MANUAL
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