Line of Sight in a mostly empty area probably gets you a lot of range but even then I find 2-3km using "regular wifi" a little hard to swallow. 1.25-1.86 mile o

Line of Sight in a mostly empty area probably gets you a lot of range but even then I find 2-3km using "regular wifi" a little hard to swallow. 1.25-1.86 mile omnidirectionally is way too far unless you have some special thing going on like your router is high up, or using a high power (1w or more) transmission, or both.