Tech: GPS in need of an upgrade, and it’s gonna cost a couple bucks
- $8 billion to upgrade the widely used geo-navigation system source
- before The system had a margin of error of about 20 feet – OK for driving, bad for walking a city street.
- after After the upgrade, the system will be able to get within an arm’s length of the location. Whoa, cool!
- » Not just for nav: It’s used for all sorts of purposes, including tracking financial transactions from ATMs and stock trades. In 2007, when the system was knocked offline in San Diego, cell phones and hospital paging systems stopped working. In other words, the technology, which currently uses 24 satellites to do its dirty work, is pretty useful.