Sean McManus {"Banned in the U.K.," letters, Nov. 9} labors under a serious misconception about the British government's broadcasting policy.

Let me state quite categorically that there is no "media ban" applying to terrorists or to anyone else in the United Kingdom. There is no ban on terrorists or their supporters appearing on television. There is no ban on reporting what such people have said. There is no ban on people explaining the terrorists' case or criticizing the government's policy. There is simply a requirement that television companies refrain from broadcasting the actual voices of anyone representing or soliciting support for either an illegal terrorist group or one of the three organizations with a history of apologizing for terrorist violence (namely Sinn Fein, Republican Sinn Fein and the Ulster Defence Association).

The British government has made it quite clear that the interpretation of the restrictions is a matter for the broadcasters themselves. It is for them to decide whom they wish to interview and to decide, in the particular circumstances of each case, whether a person is speaking on behalf of an organization named in the restrictions.

Father McManus is simply wrong to suggest that the government has taken decisions about himself or the other individuals he mentions. FRANCIS CORNISH Counsellor (Information), British Embassy Washington