Improving the world, one byte at a time. @sjbarbeau, https://github.com/barbeau, https://www.linkedin.com/in/seanbarbeau/. I work @CUTRUSF. Posts are my own.
L1+L5 support for GPS is here! …or is it?
How accurate is your location?
tl;dr — Dual-frequency GNSS on Android — Table of devices
An open-source tool to help improve the quality of real-time transit data