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, which is plugged in the SI-Station. The SPORTident ActiveCard (SIAC) can register the start, intermediate and finish times in a range up to 6 meters. 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 large can be configured with the software SI-Config+. The SI-Station only works in combination with the ground antenna.