Got 0.25 miles with trees between us! Using a new directional antenna at the base.
With just my normal WiFi router in the middle of my house, I walked outside with my imp on AA batteries and got about 200 feet before I lost communication. Wood structure house with steel siding. I thought that was pretty good for a device that small.
We’ve seen over 500 feet (open space) with a $15 D-link router. We ran out of space using anything MIMO, but Brandon made a nice little agent that serves up a browser app, using geolocation APIs to plot signal strength vs distance. Sweet