Line of sight the range is around 5-700m, at lowest RF data rate. The range is heavily depending on the obstacles (if any) in the transmission path and as well if the antenna height
can be above 2m over the ground (the higher the better).
An alternative is to use the RC1180HP (500mW version, same footprint), but of course this module drains more current so it might not suite your application. Range line of sight with 500mW is 2-3 km.
Last Update: August 8, 2017