Anyone that enjoys the great outdoors has probably heard of GPS devices. They can come in handy when you are hiking, boating, biking, or doing just about anything else in the great outdoors. Twenty years ago, you had to rely on a compass the position of the sun and stars and your own common sense. Not anymore! Now you can have a handy little device that can pinpoint your exact location at any given time of day.

If you are in the market for a GPS device, it is important that you understand how it works. Since the GPS devices rely on air signals, you must have a GPS receiver and a clear view of the sky for them to work. When your device is turned on it is actually linking up with 27 orbital satellites in place around the planet. Four of the nearest satellites are located and the distance from them to you is calculated via the hand held device. The process is called trilateration. Based on that, the GPS device can determine where you are on the planet. Pretty neat huh?

When you look at the different types of GPS devices out there, you may wonder which one is right for you. Prices can range from $100- 5000 dollars, so it is important to do your homework. Find out what features each device has, and determine whether you need them or not. The following is a list of tips to get you started when you are shopping.

- Research the name brand. Though GPS technology is fairly new, the manufacturer should have a long track record of creating quality electronics.

- Don’t buy the cheapest or the most expensive GPS device out there. The cheapest may not meet your expectations and the most expensive one probably has too much extra stuff you will never use.

- Look for a large display, lighted if you are going to be traveling at night.

- If you plan on traveling by foot look for a model that is lightweight, and water resistant.

Once you decide on a model that you are interested in, head over to your local sports supply store. Get prices on the model above and below it for a good range. You can also try to look at auction sites like Ebay.com to find a good deal. If you are lucky enough to find one that is used, make sure to test it out first to make sure that it works properly.

Deciding to buy a GPS system is a personal one, so make sure that you understand the ins and outs of the technology. If you do a variety of different activities a good basic, waterproof model will do the trick. If you have friends or family members that own a GPS system, ask them if they are happy with their purchase. That way you can get an honest opinion on the different brands out there. An online opinion site like epinions.com is also a great place for honest answers.

Adrienne MacDonald is a freelance author and contributing writer to http://www.gpsresource.info – site that provides free information on global positioning systems.

GPS or Global Positioning Systems is a term that most commonly conjures up images of vehicle navigation systems, space-age satellite technology, and interactive maps for outdoors-types and sportsmen. But the reality is that there are far more applications of Global Positioning Systems beyond GPS vehicle tracking or map navigation that everyday people like us can benefit from. All it takes is a bit of creativity, and some trial and error. Here are a few of the many possibilities that can benefit you right now in your busy and hectic life.

1. Know where your children are using services from companies like uLocate Communications.

2. Keep track of elderly members of your family, so that they don’t wander off alone.

3. Plan a road trip around interesting points of interests, landmarks, campsites, diners, etc, and hear fewer “Are we there yets?”- and of course get the most out of that expensive gas.

4. Get emergency road side assistance at a touch of a button from your vehicle, so you can get help exactly where and when you need it.

5. Keep a visual journal and bookmark collection of your favorite hot spots, sceneries, and points of interests, that may not be listed in any travel guide (You can create your own mini travel guides and memories).

6. Find lost pets easily using collars with built-in GPS, better than running around in your pajamas hollering like a maniac.

7. Feel safer with cellular phone 911 calls, so emergency personnel can pinpoint your location once you make an emergency call. Please double check your carrier service to see that it has GPS features and get a primer on how it works if possible.

8. Get to your interview, or any important time sensitive destination or engagement, faster by finding shortcuts and correct directions.

9. Find a good Italian restaurant near your movie theatre on the fly.

10. Track your luggage, laptops, and anything of importance while traveling.

11. Track and find family, friends in a crowded concert, graduation, or any social gathering.

12. When going on a vacation, feel free to separate from group for a while to venture on your own based on your own interests and find them later on with your GPS enabled device- even in an unfamiliar place.

Our ability to use GPS so far is limited by the relatively poor connection to the satellite feeds when we are indoors in buildings, homes, or behind anything that could obstruct the GPS connection. However with the investment and development in a new satellite network called Galileo which should be completed in the near future, these problems should be eliminated drastically. Despite these problems, GPS still offers a world of benefits as mentioned earlier, and with any technology, it will only get better.

In addition to more practical usage applications, GPS will make a great educational and fun gift for your loved one’s and friends as well. Consider just two of the many creative and educational uses of GPS:

1. Stay physically active and fit by playing RayGun! A locational based cell phone game based on GPS technology.

2. Become more cultured, make global friends, and learn about the world playing GeoCache, a global GPS based treasure hunt.

With many affordable feature-rich models to satisfy anyone’s preferences and budgets, now is as good a time as any to learn more about GPS technologies, which are surely to become more assimilated into the mainstream within the decade. One day we will take these things for granted just like we do now for the internet and cell phones. The key is to dive in, without paralyzing yourself with the overwhelming array of choices in the GPS market, and enjoying some truly amazing technology.

Visit GPSZoom.com for a dizzying array of ways in which GPS can improve your lifestyle including with GPS tracking services for people and vehicles, and for those adventurers at heart- technology to help you conquer the outdoors, one trail at a time.

A growing concern among many people in the world is the quality of health and physical training. As it gets easier to eat more and exercise less, it has become vital that individuals have access to a variety of tools to make training as systematic and easy as possible. Due to this, investing in a GPS running watch can make a large difference to runners and joggers, as well as to those who need a physical training program to recover from surgery or disease.

Before you purchase your own GPS watch for fitness running, you need to make certain that you understand how they work and how they can help you. In order to do this, you should know about the functions of the basic GPS wrist watch. In the most basic form, a runners GPS watch is nothing more than a stop watch and a hand held unit mixed into one. More advance systems possess functions such as heart rate monitor, performance indicators, distance meters and much more. This variance between the base models and the more advanced units allows you to purchase the exact type of unit that you need in order to improve the quality of your health and lifestyle.

Select the Right Watch for You

If you are a beginning runner, or someone just beginning physical training, you will want to investigate units such as the Garmin Forerunner 101. This unit is one of the more basic ones available, not only having an affordable price tag, but enough features where a beginning runner can adapt to the tool while receiving many of the benefits. The Timex Navman II is also a beginners watch, sporting similar functions to the Forerunner 101.

For intermediate to advance users, the Garmin Forerunner 201 has many features that the 101 lacks. Most notably, the 201 allows routes to be determined into the device, allowing long distance runners to expand their running areas safely. By providing all of the heart rate sensors, virtual running partner as well as distance and speed calculators, the device has everything the professional runner, jogger or triathlete needs in order to get into the best shape possible. With the ability to review daily or weekly histories for a period of two years, the progress of the owner of the watch can be accurately followed. This is highly important, especially for those who need to keep a constant eye on health matters.

For those who need a GPS running watch to improve health due to disease, illness or surgery, the features of the advanced systems could never be more important. As recovering from any health issue can be difficult, having the ability to chart progress and set reachable goals is important for being successful in building physical fitness.

Training Techniques

When you purchase a GPS running watch, there are several different methods that you can use to raise your level of endurance and speed and time. As there are many watches available, you will want to select the one that has all of the features required to make use of the method safely.

The first method method involves setting a daily goal based on distance. If you desire to be a long distance runner, this method would be good for you. Each day, you will want to set a minimum distance to run. If you eventually desire to run 20 miles in one day, you would start running one mile a day for a set period of time. Many use a week or two, so they can adjust to running. Then, after that initial period of time, another mile would be added. As you grow more capable of running the mile, the number of miles you add after each time frame may vary. Once you have reached the distance you want, you would begin training yourself using the second method so that you can pace while being able to reach the distance that you desire.

The first method requires that the GPS running watch has full distance based features, as well as position tracking capabilities. As long distance running usually involves leaving your neighborhood or running through parks and other natural areas, you will want to be able to find your way back to civilization if you make an incorrect turn.

The second method runners use to improve their physical fitness is to try to beat a pace. Instead of a specific distance in a day, the runner will try to run a certain speed every day, gradually lengthening the distance and lowering the time it takes to get there. This method is suitable for short distance runners, as well as cross country runners who need to work on their speed rather than their distance.

The second method requires a good speed/timing watch as well as pacing features. Garmin’s virtual runner companion is perfect for this style of training, as the virtual runner will help make certain that you stay on pace.

The third method is for those who need a slower start. Instead of running distance or beating a pace, joggers using this method will jog for a certain period of time per day while keeping careful track of their heart rate. This method is the slowest of the most popular methods, but is by far the safest for those with known health issues. An important part of physical training is to exert yourself without injury. By tracking heart rates and limiting the amount of time that you are jogging, you can slowly build up muscle tone and endurance without stressing your body. Jogging five to ten minutes a day while maintaining specific heart rates is suggested, while slowly adding more minutes as your body adapts to being able to handle the stresses of running.

The third method requires that the GPS unit has a heart rate monitor, pacing functions and distance calculators. This combination is important for following the progress of this type of runner. The mother health oriented features available in a watch, the more effective it will be when this method of training is used.

When you purchase your GPS running watch, you will want to purchase from one of the primary GPS and watch making manufacturers. Garmin, Timex, Magellan and Casio all have watches that are suitable for use with one of the three above methods.

If you are serious about starting an intensive training program, you will want to contact a professional trainer. The methods suggested in this article should be used carefully, and only within the limits of your ability. The information provided by the GPS runner watch should never take the place of medical exams and check ups given by professional doctors.

About the Author

Rebecca Blain is a professional and hobbyist writer who enjoys taking care of her fish and educating people about GPS watches for joggers and quality GPS receivers at http://www.everything-gps.com