An isolation device for repairing a cartilage defect including a syringe and a barrier device. A printing gap between the two cylinders can also be varied using separate eccentric bushings. The sensing module is a self-contained encapsulated measurement device having at least one contacting surface that couples to the muscular-skeletal system. The other ends of the two neighboring first signal lines are both connected to the first switching devices. A radio communication system is also disclosed. Various, distinct embodiments of the present invention include tracking methods for: real-time relational tracking of e-commerce segmentation and personalization, in-residence tracking of elderly and disabled people, real-time relational tracking for ground target tracking, and real-time relational tracking of satellites and satellite constellations.