I hooked up a Yagi antenna (very directional, sensitive antenna) to my WiFi board on my computer and panned around from my yard. With some software and the antenna I could find many other routers in the neighborhood. Up to about 1/2 mile seemed the limit. I found a church router three blocks away that had no password. I figured they probably only used it on Sundays…….I was tempted…….
November 25, 2017