Are you looking for some GPS systems
information? Then come to see us. We have
been providing technical courses and advanced
GPS training on GPS systems information
since a long time ago. We offer more than
20 courses on professional GPS and all
you want to know about GPS systems information.
But, first than anything, what is exactly
a Global Positioning System (GPS)?
It is a satellite-based navigation system
made up of a network of 24 satellites
placed into orbit by the U.S. Department
of Defense. At first, GPS was going to
be used by military applications, but
later in the 1980s, the government allowed
it to be available for civilian use. It
doesn't matter the weather conditions,
GPS keeps working anywhere in the world
and the whole day. It is not necessary
any subscription fees or setup charges
to use GPS.
The second question would be: How it
works?
GPS satellites circle the earth twice
a day in a very precise orbit and transmit
signal information to earth. GPS receivers
can calculate exactly where the user is
by taking this information and using triangulation.
In other words, the GPS receiver compares
the time a signal was transmitted by a
satellite with the time it was received.
The time difference tells the GPS receiver
how far away the satellite is. And by
repeating this procedure with a few more
satellites, the receiver can determine
the user's position and show it on the
unit's electronic map.
A GPS receiver can calculate the latitude
and longitude and track movement if it
is locked on to the signal of at least
three satellites. And it can determine
the user's latitude, longitude and altitude
using four or more satellites. But it
doesn't end with this, because once we
have the user's position, the GPS unit
can calculate other information, such
as speed, bearing, track, trip distance,
distance to destination, and much more.
So not just you can know where exactly
somebody is, but also you can know a lot
of things about that person, and it doesn't
matter where in the world that person
may be.
There is so much more GPS systems information
and a lot of things you can learn to understand
and use a GPS system correctly and you
can find all of them just by looking for
us.
Browse our list of course schedules,
course descriptions, locations, and the
incredible low prices and discounts we
have for you. We also have an extensive
selection of books, software, and equipment
for GPS users of all types.
http://www.gps-system-vehicle-tracking.com/gpssystem/11/gps-vehicle-tracking-system.html
This article was posted on November
17, 2005
