HC Deb 03 July 1933 vol 280 c13
22. Mr. DORAN

asked the Postmaster-General if he is aware that owing to bad reception conditions it frequently occurs that the long-distance radio telephone service transmits without the use of sideband, and that, when this is the case, conversations may be heard by any listener who possesses short-wave apparatus; and whether it is proposed to take steps to prevent this?


The form of transmission known as "single side-band working" is never employed on any of the short-wave channels of the overseas radio-telephone services. With regard to the question of privacy, I would refer ray hon. Friend to the answer given on the 13th June to my hon. Friend the Member for Moseley (Mr. Hannon).