Unlike traditional GPS, RTK-GPS doesn’t measure the delay between its signal and the the signal received by a satellite — instead it measures the shorter wavelengths in the satellite’s carrier signal. This can mean accuracies within one centimetre, but there are difficulties with aligning signals with RTK, and the need for multiple receivers makes the technology impractical for navigation. This is why the technology is most widely used in land surveying. If you would like to tinker around with one yourself, full instructions are available on the project page. [Project Page via Make]
Make Your Own Real-Time Kinematic GPS Receiver
Trending Stories Right Now
Black Friday isn't a thing here in Australia. Which is unfortunate considering that there's a bunch of sweet cash to be saved on gadgets this time of year. Microsoft Australia decided to throw the land Down Under a bone and discount products from the Surface through to the Xbox One, and everything in between.
Today's best deals include Fit XT Pro on Android, Virtual Trainer Stretch on iOS and 4-in-1 Fitness on Windows Phone. Deals end without warning, so be quick!
Airbus's notable patents from the last few years reads like a list of failed aerospace Kickstarters. standing-room-only aircraft, bicycle saddles instead of real seats, or VR headsets to escape the awful reality of coach. Is it possible to go more ambitious? Airbus's R&D department says yes.