The BS11-Loop is developed for width areas, where the 3 meters range of a BS11-BL are not enough. The station comes with a ground antenna of length 6 or 9 metres, which is plugged in the SI-Station. The SPORTident ActiveCard (SIAC) can register the start, intermediate and finish times in a range up to 9 meters depending on the length of the ground antenna. The station can be controlled and also be charged by USB interface.

The number of SIACs can be registered simultaneous is unlimited. The BS11-Loop can be configured with the software SI-Config+. The SI-Station only works in combination with the ground antenna.