GPS Systems

<h1>GPS Systems</h1>

<p align=right>by Mike Seeley</p>

<div align=justify>With the price of gas rapidly approaching $4 per gallon, can you afford to be driving around looking for a location you need to be? Not to mention the cost of your time, or the aggravation of not finding what you’re looking for. And what about the frustration of following the directions of someone who didn’t know how to get there anyway? People die every year because they take a wrong turn and get stuck on a snowy, isolated road.<BR><BR>Well that doesn’t have to happen. With the advent of the Global Positioning System (GPS) you never have to be lost again. You can save time and gas with the use of explicit directions to where you’re going. And, guys, you never have to stop and ask directions again.<BR><BR>The Global Positioning System is a network of satellites orbiting the earth that transmit radio signals. If you have a GPS receiving unit you can locate your position, track your direction, distance and speed. This is done by using trilateration, where the receiving unit measures the distance between itself and three or more of the satellites. Since the satellites know where they are, and the time it takes to send and receive the signals, the receiver can calculate its own position.<BR><BR>To make it even more useful, computer programming companies have written software for the units that have maps of, virtually, the entire world. So, now, when your position is located by the receiver, it can tell you where you are in relation to things you can recognize (i.e. streets, addresses, highway exits, etc).<BR><BR>Now, imagine the realm of possibilities for the use of GPS. Attach a receiving unit to a child’s wrist or in their pocket, and with a tracking unit you can monitor the child’s location at all times, or the location of any object a receiver unit is attached to; a car, a dog, a boat, a person with Alzheimer's disease. <BR><BR>As a runner or cyclist you can track your workouts, precisely, measuring distance, pace, speed and routes. There are GPS receivers with software for lakes, channels and oceans, for marine charting and navigation, and there also units for aeronautical use.<BR><BR>There are units that mount to your wrist, like a watch, units that are handheld, like a cell phone, units that mount in your car, on your boat, on your bicycle or motorcycle. There are units with a map and there are units that give you directions verbally. All have become very user friendly and easy to learn. They range in price from about a hundred dollars to several thousand dollars, depending on how detailed you want to get. The trick is to determine which type of unit best suits your needs. <BR><BR>Don’t be afraid any more. Life is short and the world is big, so get out there and have an adventure. </div>

<p align=center>Article source: <a href="http://www.ArticlePros.com/Electronics/GPS-Global-Positioning-Systems/article-85664.html">ArticlePros.com</a></p>
 
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		<p align=center><b>About the author</b></p>
		<p align=justify>I'm a former USMC Officer with a BSEE from the University of Texas.  I've worked in the retail industry, the offshore oil industry, the semiconductor industry, the wine industry, and the tool industry.  I'm an avid recreational marathoner and donate my time to the Leukemia & Lymphoma Society's Team In Training as a marathon coach. Visit them at www.teamintraining.org.<br />
I'm currently building an ecommerce web site at www.hottechgear.com, which will be open soon.<br />
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		<p align=left><a href="www.hottechgear.com" target="_blank" title="will open in new window" class=blue>www.hottechgear.com</a></p>				<p align=center><input type=button class=asubm value="Other articles by Mike Seeley" onclick="document.location='http://www.ArticlePros.com/author.php?Mike Seeley'" style="height:20px;cursor:hand"></p>
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