Communication range is governed by the laws of physics, where the output power of the radio transmitter, the sensitivity of the receiver and the transmission frequency are the most important parameters. Importantly, it also depends on the environment where the mesh is established; being indoors or outdoors, in urban or rural areas, vegetation etc. The signal attenuation and reflections depends on the environment. In simple terms, range is inversely correlated to communication frequency. In other words, the range is approximately twice as good at 433 MHz, as compared to 865 MHz, and 865 MHz will have a range that is almost three times better than a 2.4 GHz based system.
Last Update: August 8, 2017