GeeChin race timing system is specially designed for race timing. It use UHF rfid technology, each competitor will wear a rfid tag, then there is UHF rfid reader and antenna will record the start time and finish time of them, then the system will give a result of the competition. The miss reading rate of the system is very low. And there are different tag for different events. For the antenna, there are floor mat antenna and side antenna. For the reader, usually we use impinj four port antenna. Below there is detail instruction for every components.