Studies CB usage in different scenarios (different modulation modes and different RF output power). The study should asses CB compatibility (e.g. interference) with other telecommunication services (telephone, TV, etc.) in those different scenarios, by the use of EMC and radio spectrum measurements (methods widely accepted) and to co-ordinate with ERC and CENELEC. The study shall be based on actual up-to-date measurements data, as well as software simulation methods.