Restrictions on transmission
19.—(1)  No dealer shall transmit or permit the transmission of superfluous signals.
(2)  No test, trial or practical transmission shall be permitted except in such circumstances as to preclude the possibility of interference with any other telecommunication.
(3)  All tests, unless prior approval from the Authority has been obtained, shall be conducted on dummy load.
(4)  No dealer shall transmit or permit the transmission of --
(a)any message containing indecent, obscene or offensive language;
(b)any message for an improper or illegal purpose;
(c)any message which interferes with the operation of any authorised telecommunication equipment; or
(d)any message which to his knowledge is false or misleading and likely to prejudice the efficiency of any life-service or endanger the safety of any person or of a place or premises, vessel, aircraft or vehicle.