satmap ACTIVE 10 Full User Manual page 86

24.00 Glossary
24.00 Glossary
Active map
The map on a card which is in use (multiple
maps can be on one SD card).
Active route
Shown as a highlighted yellow or blue line to
follow on the map with red arrows between
waypoints.
AOI
An Area of Interest. Consists of a series
of points making up an area of any size or
shape. Can be used to measure an area on a
map, mark various areas of interest, or as an
alternative to the circular POI warning radius.
Arbitrary reference point (for AOIs/LOIs/Grids)
Automatically generated (set) point within or
on an AOI/LOI/Grid. It is used as a reference
point in the following instances:
• As a GoTo point
• As a 'POI' in data boxes
• When using the Pointer
• When using the Center on Map
This reference point can be moved to any
new location by using the Edit Location by
Map option.
Asc
Abbreviation for ascended height.
Ascents
Positive changes in elevation.
Atomic clock
A type of clock that uses microwave signals
emitted by electrons as its timekeeping
element. It is the most accurate time standard
and is used to control the frequency of GPS
satellite signals.
Bearing
Direction from one object to another.
CEP (Circular Error Probability)
Determines the radius of a circle containing
50% of the GPS readings.
Cross Track Error
The difference in distance between a planned
route and your location.
Data Box
A white overlay box that appears in the lower
half of the map screen. Shows customized
information about your trip, environment and
map objects. Available as a 2 or 4 box layout.
Descents
Negative changes in elevation.
button
EGNOS
The European Geostationary Navigation
Overlay Service has been developed by the
European Space Agency (ESA) for safety of
air navigation. It is part of the Galileo project.
When a signal is available (which is only in
the south of England and mainland Europe),
this signal improves the accuracy of signals
from the GPS system.
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Electronic compass
Uses magnetic fields to calculate accurate
compass bearings whilst stationary.
ETA
Estimated Time of Arrival. The ETA is
calculated from the average moving speed if
it is available (see Trip Log). Otherwise the
set speed is used. For example if you have
no lock but the unit previously recorded an
average moving speed which has not been
cleared from the trip log, the ETA will be
based on this average moving speed.
Explorer
1:25 000 Ordnance Survey map.
Galileo
A planned global navigation satellite system,
being built by the European Union and
European Space Agency as an alternative for
the US Global Positioning System (GPS) and
the Russian GLONASS system. The project is
expected to be completed in 2013.
Geocaching
An outdoor treasure hunt activity using a GPS
to locate hidden containers, ('geocaches').
Often called a "game of high-tech hide and
seek", coordinates, along with other details of
the location, are posted online. Download files
onto your computer from geocaching.com and
use SatSYNC to import them to the Active 10.
© Satmap Systems Ltd