9 any amendment or replacement of that Constitution or regulations to which Zimbabwe is a party; “Corporation” means the Posts and Telecommunications Corporation referred to in section 3 of the Posts and Telecommunications Corporation Act [Chapter 12:02] repealed by section one hundred and fifteen; “dealer” includes⎯ (a) a person who carries on a trade, business or industry in which radio transmitting stations or their component parts are assembled, manufactured, imported, bought, sold, hired or exchanged or offered or exposed for sale, hire or exchange; and (b) an auctioneer of radio transmitting stations; and (c) the employee or agent of a person referred to in paragraph (a)or (b); “diffusion service” means the dissemination⎯ (a) by means of any conducting medium of the whole or any part of writing, signs, signals, pictures, impulses or sounds broadcast by a broadcasting service; or (b) of music, speech, pictures or other data for information, education or entertainment purposes by means of any conducting medium connected to two or more items of apparatus specifically designed for the reproduction of sound, pictures or data; or (c) of teletext and vertical blanking intervals; “Director-General” means the Director-General of the Authority appointed in terms of section twenty-nine; “disabled person” bears the meaning assigned to that term by section seventy-two; “distress call, message or signal” means a communication concerning safety of life on the land, at sea or in the air; “electronic mail service” means a service for the distribution of messages by electronic means; “fixed date”, in relation to any provision of this Act, means the date fixed in terms of subsection (2) of section one as the date of commencement of that provision; “fixed-line telephone service” means a telephone service transmitted by telecommunication lines; “generating apparatus” means any apparatus⎯ (a) generating or designed to generate; or (b) liable to generate fortuitously; Hertzian waves, which is prescribed to be generating apparatus for the purposes of this Act; “harmful interference” means radiation, induction, conduction or other electromagnetic effect which prevents the proper functioning of or obstructs or repeatedly interrupts ⎯ (a) a radiocommunication service carried on in accordance with this Act or the International Telecommunication Convention; or