The EMC research on mobile multimedia broadcasting system equipment

With the standards of system and related equipment being promulgated and implemented, China mobile multimedia broadcasts (CMMB) has already begun to broadcast throughout the country. The electromagnetic compatibility (EMC) of CMMB is becoming the focus both inside and outside the industry. In this paper, we preliminary studied the EMC of CMMB system such as electro-magnetic disturbance, electromagnetic sensitivity, electromagnetic radiation protection and so on. Then we proposed the focus of the future research directions, including limits and methods of measurement. At last, CMMB indoor coverage system equipment standards in EMC testing and evaluation issues were discussed.