卫星广播业务和地面业务间的频率共用 11.7～12.2 GHz和12.5～12.75 GHz卫星广播业务（电视）和地面广播业务（电视）及地面无线电中继系统间的频率共用

Frequencysharing between the broadcasting-satellite services and terrestrial services--Frequency sharing between the broadcasting-satellite service(television)in one side and terrestrial broadcasting services(television)and terrestrial radio-relay system