Ultra-Wideband ranging modules I’ve been looking for a system that can provide fast & accurate position measurement within a defined area; this is generally known as an RTLS (Real Time Location System). My previous experiments have involved optical measurements, which have good accuracy, but are constrained by line-of-sight and range issues. So why not use wireless, and measure the time it takes for a radio pulse to travel from transmitter to receiver? Given the speed of light is roughly 300 mm ...