Abstract :
Consideration is given to the advantages to be derived from the operation of several broadcasting stations on one wave-length, and to the means whereby such operation may be attained. A brief outline is given of the theory of the production of distortion of various types inherent to single-wavelength working, and an account of practical verification of theory. A theory is elaborated to account, quantitatively, for the amount of interference from a distant station likely to be experienced when listening to a local station operating on the same wave-length. The conditions under which distortion introduced by such interference becomes negligible are determined, together with the approximate service range of individual single-wave stations. The conclusion is drawn that single-wavelength working is possible and practicable amongst stations radiating the same programme, and that the principal use of such single-wave-length working is likely to be to bring isolated towns into ¿A¿ service-area conditions, thus economizing the available wave-lengths.
