© Satmap Systems Ltd
© Satmap Systems Ltd
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Geotagging
Photos are labeled or 'tagged' to show where
they were taken. Date/time information from
the photos is matched with the location
information from the GPS unit. (Use the
geotagging application in SatSYNC).
GLONASS
A space-based navigation system comparable
to the American GPS system. Developed by
the former Soviet Union and now operated
for the Russian government by the Russian
Space Forces.
GoTo point
A set point which acts as a target. It is on a
straight line from your current location and the
route (yellow or blue highlighted route with red
arrows between current location and GoTo
point).
GMT (Greenwich Mean Time)
The local time at the 0 meridian passing
through Greenwich.
GPS
The Global Positioning System is the only
fully operational Global Navigation Satellite
System in the world. Created in the US it
utilizes a constellation of 24 Medium Earth
Orbit satellites that transmit precise signals.
The system enables a GPS receiver to
determine its time, location, speed and
distance.
GPS ‘compass’
Relies on a GPS signal to determine the
direction of travel from two locations and
calculate accurate compass bearings whilst
moving. Need a GPS lock.
Grid
A group of square-shaped AOIs (Areas of
Interest) in a large square/grid formation.
Used to split an area into searchable pieces
by overlaying a 10 x 10 square grid onto a
map (each AOI covering 300m x 300m).
Grid Magnetic Angle
The horizontal angular difference between
Grid North and Magnetic North. It is this angle
which needs to be applied when converting
between magnetic and grid bearings.
Grid North
The direction of a grid line which is parallel to
the central meridian on the national grid.
Heading
Direction you are traveling.
Hibernate mode
An ultra low power state giving significantly
extended battery life and a rapid satellite
acquisition.
Inactive route
Shown as a gray highlighted line on the map
(only if you have made it visible).
IOI
An Item of Interest. A non geo-referenced
document including digital information
saved on the unit that contains no latitude or
longitude data. Used to reference instructions,
or contain a graphic showing information. Can
be created directly on the unit as a simple text
description with details of the IOI shown on
the description screen.
Knot
One nautical mile per hour.
Landranger
1:50 000 Ordnance Survey map.
LOI
A Line of Interest. Allows you to plot a line
consisting of multiple waypoints joined
together, instead of a single POI (Point of
Interest). Cannot be followed or activated like
a route, but used to represent boundaries or
alternative routes and to customize your map.
Magnetic North
The direction indicated by a magnetic
compass. Magnetic North moves slowly
and is currently West of Grid North in Great
Britain.
Marker
A red flag on the map from which you can
measure distance and bearing from any other
point on the map.
24.00 Glossary