| Sat
Nav Jargon Buster
Find below an A-Z of
Sat Nav jargon that is explained in plain English.
Channel
A channel of a GPS receiver consists of the
circuitry necessary to receive the signal from
a single GPS satellite.
ETA
Estimated Time of Arrival.
Expansion Slot
Slots into which memory cards can be inserted
to increase data storage.
Flash Memory
Flash memory is a non-volatile memory device
that retains its data even when power is removed.
GPS
Global Positioning System. This is global navigation
system based on 24 or more satellites orbiting
the earth and providing very precise, worldwide
positioning and navigation information 24/7.
GPS Receiver
This is a piece of electronic equipment that
passively receives a GPS signal for processing.
A receiver may be hand-held, carried on your
person or mounted in a vehicle.
Li-Ion Battery
A reachargeable type of battery that offers
reliable long-lasting power between charges.
PDA
Short for personal digital assistant, a handheld
device that combines computing, telephone/fax,
Internet and networking features.
POI
Points of Interest. Most Sat Navs allow you
to put in your own Points Of Interest on your
mapped out route. These points of interest are
generally preloaded by the manufacturer and
include Petrol Stations, Car Parks, Shopping
Centres, Hospitals, Railway Sations, Hotels
etc.
PNA
Personal Navigation Assistant. These are dedicated
satelllite navigation units that are specifically
built for the purpose of navigation.
Sat Nav
A satellite navigation system that can be hosted
on a variety of devices such as handheld computers,
laptop computers, Smartphones and dedicated
satellite navigation units installed in cars.
SD Card
Secure Digital, a postage stamp sized memory
card that comes in different sizes of memory
capacity. You can hold thousands of files on
a 1GB SD Card. Some cards can be as large as
4GB.
Smartphone
A handheld device that integrates the functionality
of a mobile phone, personal digital assistant
(PDA) or other information appliance.
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