9Interpretation
(1)In this Act—
" broadcast " means a broadcast by wireless telegraphy of sounds or visual images intended for general reception (whether the sounds or images are actually received by any person or not), but does not include a broadcast consisting in a message or signal sent in connection with navigation or for the purpose of securing safety;
" external waters " means the whole of the sea adjacent to the United Kingdom which is within the seaward limits of the territorial waters adjacent thereto;
" the high seas " means the seas outside the seaward limits of the territorial waters adjacent to the United Kingdom or to any country or territory outside the United Kingdom;
" ship " includes every description of vessel used in navigation;
" wireless telegraphy ", " wireless telegraphy apparatus " and " wireless telegraphy licence " have the same meanings respectively as in the [1949 c. 54.] Wireless Telegraphy Act 1949.
(2)For the purposes of this section, the seaward limits of the territorial waters adjacent to the United Kingdom shall be determined by reference to the baseline established by the Territorial Waters Order in Council 1964 or by any subsequent Order of Her Majesty made in Council under Her royal prerogative for establishing the baseline from which the breadth of the territorial sea adjacent to the United Kingdom, the Channel Islands and the Isle of Man is measured.