2 ms·
Didn't know your iphone gps was accurate at millimeter level just like the $500 trimble GPS which is used for precision.
by sundae79 14y ago
Didn't know your iphone gps was accurate at millimeter level just like the $500 trimble GPS which is used for precision.
- excuse-me 14y agoA $500 Trimble is still the same 12channel + WAAS unit you have in your phone or buy in a sports store. A Real Time Kinematic system can do mm (on a good day with a following wind) but they cost 20x as much! My post wasn't totally clear - I meant people ALSO wonder why an RTK is $10,000 when you can build your own for a lot less (http://blog.makezine.com/2009/11/12/diy-real-time-kinematic-gps/ http://blog.makezine.com/2009/11/12/diy-real-time-kinematic-...)