About GPS and GPS Accuracy

What is GPS?

The Global Positioning System is a network of 27 (24 in operation and three extras in case one fails) satellites in six different orbital paths. A GPS unit measures the speed of each satellite and compares it relative to your location. Once it has established contact, the device reads out the altitude, longitude and latitude. The unit keeps taking measurements and averages them constantly, which means that as time passes the device determines a more accurate position. A GPS device must acquire at least three satellites to determine a two-dimensional reading; four satellites are required for a 3D reading; and the accuracy grows as more satellites are acquired. GPS satellite signal are notoriously weak, and obstructions like dense tree cover and tunnels can impede the signals. GPS works anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS.

How accurate is GPS?

Today's GPS receivers are extremely accurate, thanks to their parallel multi-channel design. 12 parallel channel receivers are quick to lock onto satellites when first turned on and they maintain strong locks, even in dense foliage or urban settings with tall buildings. Certain atmospheric factors and other sources of error can affect the accuracy of GPS receivers. Most GPS receivers are accurate to within 15 meters on average.

Newer GPS receivers with WAAS (Wide Area Augmentation System) capability can improve accuracy to less than three meters on average. No additional equipment or fees are required to take advantage of WAAS. Users can also get better accuracy with Differential GPS (DGPS), which corrects GPS signals to within an average of three to five meters. The U.S. Coast Guard operates the most common DGPS correction service. This system consists of a network of towers that receive GPS signals and transmit a corrected signal by beacon transmitters. In order to get the corrected signal, users must have a differential beacon receiver and beacon antenna in addition to their GPS.

Multi Fuel Camping Stoves

What are multi fuel camping stoves and why is it important to have? This is a very good question and it all depends on what your requirements are. Seasoned campers and their camping family will understand their needs for a very good camping stove. Camping stoves come in several different variations, especially with the types of fuel source. Most often the traditional fuel source will be propane. While others can use unleaded gas, wood, or even wax fuel. The best way to ensure that you have the correct stove is to review the rules and regulations for the location of your camping trip. Different camping parks have their own requirements regarding what kind of stove you are allowed to use.

Multi fuel camping stoves are important if you travel abroad to other countries. Some countries do not have unleaded gas to use. While other countries or parks will not allow the use of propane gas for safety considerations. Thus a good multi fueled camping stoves can be essential for you. This way you can be very versatile and not have to buy different kind of camping stove for every different camping trip.

There are many things to consider when you purchase your multi fuel camping stoves. Most camping stove should be very easy to set up and take up little space. Ensure that your stove is very stable and avoid anyone that tends wobble because this can be a safety concern. Try to get good reviews on a camping stove. Look for stoves that are dependable, strong, light, compact, and easy to clean.

A very good multi fuel camping stoves are made by Coleman. Coleman is one of the largest camping goods manufacturers. They have camping products from sleeping bags to lanterns. Anything that you need to for camping Coleman can provide. One of their great multi fuel product is the Coleman 2 Burner Multi Fuel Premium Compact Liquid Fuel Stove. This stove is a very reliable liquid fuel and propane camping stove. Use it while you stay in a tent or just while you cook under the stars. This two burner multi fuel camping stove will be perfect for your next camping trip. One tank of any liquid fuel can give you roughly 2 hours of cooking time with both burners on at the highest settings.