Has there ever been an instance where you found yourself wondering where exactly you are? If so you may concur a vague answer that does not completely solve the question. However, newer modern technology the question is easy to answer. The creation of the Global Positioning System (GPS) makes the ability to find your location quite easy… and accurate.
Some may believe that the original concept of GPS navigation originated over a hundred years ago when the explorers looked to the stars to define their position. Actually, the true origin of modern GPS technology begins in the 1950’s. Such systems were originally created for military use. A unification of MIT, the DoD, and Ivan Getting helped craft these amazing technological improvements. Now, the process uses eight satellites and is dubbed the Navigation System with Timing and Ranging (NAVSTAR).
These days, GPS is composed of 24 orbiting satellites that revolve around the earth two times in day and transmit accurate information on time and location. A Garmin GPSMap 78sc Handheld GPS Navigator or any handheld GPS receiver would help determine your precise location anywhere on earth, may it be on a hiking trail up the Andes or boating expedition in the middle of the Pacific Ocean. The GPS receiver works by calculating the distance between the satellite and the user based on the signals between the receiver and at least three satellites. If the elevation is needed, at least four satellites are used.
Anyone with a love for fun in the outdoors and hopes to adventure will discover a GPS receiver is a must own. Such a device can determine exact locations for bikers, hikers, pilots, boaters, etc simply by entering a location and making a very simple push of a button. A solid GPS model such as the Garmin GPSMap 78sc Handheld GPS Navigator and newly issued of GPS models with the ability to show clear data detailing latitude and longitude, Military Grid Reference System (MGRS) and UTM (a grid that is devised by the Bureau of Land Management). These units will maintain a log for tracking that gives users the ability to properly trace their steps without much of a hassle. The GPS receivers need to be sensitive enough to draw in powerful satellite reception even though it may be deep in a canyon or in an area that is covered by highly dense trees.
With outdoor GPS units, it is best to procure systems with a battery life that will last around 12 hours and this should encompass the combined use of compass and GPS. Such a unit must also be able to upload/download data to the hard drive and include a mapping system (A computerized one) while also displaying the information as visually clear as possible. The memory of the GPS should be able to store upwards of 500 waypoints.
Since a GPS unit will have to deal with all sorts of weather conditions and may even has to deal with rough handling, the casing much be made from rubber and remain highly durable. The backlights also need to be powerful enough so that you can read data in every type of light situation. Garmin GPSMap 78sc Handheld GPS Navigator and common modern GPS receivers come with a built-in compass that can let the user know where he is and what direction he is venturing. Those units with higher price tags will present even more features. Purchasing a GPS at any price is a must when you are heading into the great outdoors because it makes all ventures safe and more enjoyable.