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Hiking - An Introduction To The Use Of GPS Navigation Systems
The Global Positioning System (GPS) is fast becoming very much an
everyday navigational tool and is commonly seen fitted into cars these
days. It is also now available in a simple hand-held form, similar in
size to many cell phones.
A GPS unit can be loaded with map data for just about any area of the
world and, by using a series or satellites, it can pinpoint your position
with remarkable accuracy. Indeed, many units can not only indicate your
position on the ground, but can also provide you with an altitude reading.
Like most things, GPS units are priced at a reasonably low level for a
basic unit which will simply give you your latitude and longitude, to
extremely expensive units which are packed with more features than the
average hiker could ever possibly use. For this reason it's important
that you decide just exactly how you want to use a GPS unit before you go
shopping.
The world's leading manufacturer of GPS is Garmin and you will certainly
find a range of Garmin units on sale in just about every outlet,
including of course outlets online. There are also other brands of course
and, whichever brand you choose, you'll find a bewildering range options
available in different shapes and sizes.
For the hiker it's particular worthy of note that some models are
waterproof, which can come in very handy if you're likely to be crossing
rivers and lakes or if you get caught out in a storm.
Different models also offer different numbers of waypoints. A 'waypoint'
is simply another term for terrestrial coordinates such as latitude,
longitude and altitude. For most hikers these basic waypoints will be
sufficient but, if you're into gadgets, you might like to check out the
variety of other waypoints that can be used to indicate your position on
the ground.
You will find that when talking about GPS units the term 'waypoint' is
also used to describe the number of landmarks shown on the display. This
will vary depending on the map that is loaded into the unit and the
amount of information displayed can be both good and bad as far as the
hiker is concerned. While it might seem that 'the more information the
better', too much information can simply become confusing and actually
make the job of navigation more difficult rather than easier.
One popular Garmin model with hikers is the eTrex which is lightweight,
waterproof and displays up to 500 waypoints. It also has a number of
controls along the side which allow you to control the size of the
display, including such things as zoom.
The majority of units fall into the $100 to $300 price range, although
units can of course be purchased at well in excess of $300. In the GPS
arena, like most others, you often get what you pay for and you're
probably looking at somewhere around $200 for a good unit that is
suitable for hiking.
One thing to look for is a unit that will work in a 'static' environment,
as some units require movement in order to give you a reading. It can
also be useful to buy a unit which provides an altitude reading as this
can be very useful in hilly areas when contour lines on the map can be
confusing.
The secret to buying a GPS unit is to think carefully about how you will
use the unit and then to do some research and look at a lot of models
before making any purchasing decision.
About the Author
Joining your local hiking club will put the resources of the club at your
disposal and allow you to get advice and information on all aspects of
hiking, including such things as which Asolo hiking boots to buy.
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