Why doesn the Z-Wave Radio use the 2.4GHz band?
The sub-GHz frequency range used by Z-Wave throughout the world has a physical propagation range that is approximately 2.5 times the equivalent 2.4GHz signal. This allows for the Z-Wave radio to consume less power compared to wireless devices that operates in the 2.4GHz band. Apart from that, the 2.4 GHz band is very crowded with, for example, Wi-Fi networks.
The 908/868 GHz signal has a physical propagation range that is approximately 2.5 times the equivalent 2.4GHz signal. This allows for the Z-Wave radio to consume less power compared to wireless devices that operates in the 2.4GHz band. Apart from that, the 2.4 GHz band is very crowded with, for example, Wi-Fi networks.
