EU unveils more precise satnav system

How many GPS systems do we need? Is this just a pride thing or will they be charging people to use the "new and advanced" system?

@NotAsleep: According to a U.S. government report obtained by U.K. newspaper The Guardian, the nation's satellites used for GPS may be failing and could even begin to malfunction by 2010.

http://www.guardi...reakdown

If a positioning system could track markers at a much more precise resolution, the uses would skyrocket. Currently the system is only accurate to ~13.2 Meters.

Also, large portions of Africa, South America, and Russia (to name a few) are completely out of service range of our current satellites (which total 24).

I am unable to locate the link right now, but I read an official report on a new constellation they plan on putting up with more satellites with newer technology evenly spaced around the earth, so as to cover the entire earth with free gps. Not to mention the precision is supposed to be cut down to ~3m accurate.

@jsovine

If GPS isn't available in Africa, you may want to let these people know before they all get lost!

http://www.tracks4africa.com/

Why wouldn't it work in these places? As for your article, they really make it sound scary... but since all newspapers are totally unbiased and aren't driven by profit, it's ok to believe them, right? Saying that the GPS system is going to fail is ridiculous. Meantime, we're in the process of launching more advanced satelites every year.

http://www.inside...ies_Inc_

My original point had NOTHING TO DO WITH WHO OWNED THE GPS SYSTEM, simply that it seems to be a waste of BILLIONS UPON BILLIONS OF DOLLARS to operate and maintain so many of them. Unless programmed otherwise, the nature of a GPS system allows the world to use it for free and nowadays there's really no reason to preclude people from use of it. Let's just have one that works REALLY WELL

GPS should work worldwide since the satellites are always moving in their low altitude orbits. The original use of GPS was US military, and no doubt the old GPS can resolve to 3m but the US military have desensitized them for non-military use.

The military no longer desensitizes GPS. In fact, the new GPS III units don't even have the ability for being desensitized. From a strategic standpoint, there's no reason for it. If someone wanted to attack the USA, they wouldn't use a precision guided munition... much less one that has to be accurate to within than 3 meters.

PS, I just realized how sarcastic my last post was. My apologies, t'wasn't a good day for me...

I always thought the 'American' version of GPS could only pin point your location to 50' (15m) without local transmitters to increase accuracy? It sounds like the European version is much better to start with.

It's also a bit about who controls these systems. Having one that works 'really well' is all well and good. But if political tensions arise turning off GPS for part of the world could be a heavy bragaining chip (read: blackmail opportunity). Multiple systems make this less of an option.

Also a certain amount of redundancy is always a good idea. Think how much damage a systemic error can cause if you only have one system in operation.