A handful of new GPS satellites have recently been launched in to space. These new satellites are different in that they have anti-jamming capabilities. The satellites achieve this by using an upgraded antenna panel which boosts signals above normal signal ranges which information is then transmitted to base stations on the ground. As well as the anti-jamming signal abilities, the satellites also have new encryption and encoding services.
A mixture of these elements provides greater accuracy for these satellites which are also open to public use by way of a second civil channel along side the new military signals. The new system is aimed to pave the way to more accurate and more reliable GPS services to all around the globe.
Source - UPI
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