A camshaft is formed at a generally middle portion with an enlarged cylindrical portion. Group A comprises primarily intracellular active antibiotics working as inhibitor of bacterial RNA polymerase; as inhibitor of gyrase; or as inhibitor of bacterial protein synthesis. The protective cap abuts against the outside circumference of the clamping jaws when it is attached to the clamping base and prestresses said clamping jaws in direction of the clamping reception. The TX data is indicative of a second frequency, a second major channel number, andor a second minor channel number.