The value of a GPS receiver could be a cheap price to pay for your life. Yes, it can save your life! ATAC TV Survival highly recommends that you study the systems, learn to use it, and buy a pocket GPS for your safety. This is one of the best items that have come out of the electronic whirlwind of technology. GPS receivers are used to provide information on your current location, where you want to go, and how to get there, and back. In an overview of the capabilities of what a GPS receiver can do, we will hit the high points you should know about these units.
GPS stands for “Global Positioning System” and is a full network of satellites built by the US Department of Defense, 24 of them to be exact. Each satellite sends signals down to the earth from their orbits in space. It takes three (3) or more of the satellites signals to identify the GPS unit’s position. If the unit can receive four (4) of these signals, it can provide and determine your elevation. In 2003, the Government activated the Wide Area Augmentation System (WAAS) that vastly improved the standard GPS unit’s accuracy, and once activated in your unit, it can give your position better than 3 meters about 95% of the time. Guess what? With a GPS unit, you will be able to tell where you are, even out in the middle of the ocean. Some GPS units that have highly sensitive chipsets, SiRF as an example can acquire, compute and process satellite signals very rapidly and can obtain these signals in very challenging areas such as narrow canyons and dense forests with thick overhead cover.
The GPS not only can tell you where you are, it can be programmed with information, and direct you to where you want to go. Another very useful feature that the units do is drop “bread crumbs”, usually called “Waypoints” along the route you pass to remember how and when you got from Point A to Point B. This means you can precisely follow the path you came on back to the original point. Also, you can drop an electronic waypoint any spot you want to remember, such as a good possible campsite, favorite rock formations etc, and find that spot anytime you want with the coordinates or waypoint. You can mark or save waypoints as you hike and once you have some in the unit, it is called a “route”. Basic GPS units display routes on a blank screen, but the more advanced and costly units are usually loaded with topographic and/or road maps.
Most GPS units come pre-loaded with a base map that includes cities and roads, or roads with points of interest, but there are many different software packages. Normally GPS units do not have detailed topographical maps. The better or more advanced units can be loaded with additional maps to suit your needs using a computer loading off CD’s or DVD’s. Usually the more money you spend on a GPS unit the more capable it will be. Consider the units memory if you plan to load many different sets of maps. A large memory is needed for storage of lots of waypoints and varies maps and information. As you learn more about these units, you will have to decide the primary use you have planned for the device. It might be that you will only use it for trail or roads. Some units can give you the best of both worlds being capable of both. B/W or color screens are another necessary choice that can make a big difference if you have to work with the units in the dark. Color screens are much better and easier to use after the sun goes down. Again, money drives these units and more capability costs more money. There are many other options available on these units and you must spend the time deciding what you need for your adventures. Don’t Forget! You still need a map and compass. Batteries can run dry at the worst possible time. ATAC TV will help teach you the basic and advance lessons you will need to venture out on your own safely. Learn how to use the GPS and the map and compass for your own safety. You will find it was time well spent.





