This application only required a range around 25 feet. We did an ad hoc test of the system and got more than a 300 foot range using a ~0.75" ceramic antenna internal to the "remote" unit and a stub ~3" antenna on the base unit connected to the PC. With larger antenna's I think the range would easily be 500 feet or more. These are transceivers and we are doing two way comms. Data transmission rates come into play when determining the max distance. As I said, this device is an "air wire"; you can send any kind of "pulsed data". You could send PWM to remotely control dimming, motor speed (don't know that I'd actually recommend that one though). The module itself is very powerful; you can use it under uC control or in a "dumb" mode. Check them out...