Originally Posted by
sabongi
A little off topic here, but can anyone explain me why no one uses RFID on these timing systems? Transponders go for like 50 cents...
The cheap RFID tags are passive. It can take quite a long time for the reader to acquire data from them, which can cause missed laps. Also, there is no provision for collision detection, which again can cause missed laps. The readers are active, and can be quite expensive.