International Relays

Radio Record, Volume IV, Issue 37, 27 March 1931, Page 15

International Relays

Perfecting Technique MERICAN interest in, international relay broadcasting has been one of the high-lights of world radio during the past year. In a review of the technieal side of broadcasting during 1930, Mr. O. B. Hanson, manager of plant operation and engineering of the American National Broadcasting Company, recently reported that research has been carried out which enables engineers to predict with 90 per cent. accuracy thirty days before a broadcast whether international programmes may be relayed by wireless with reasonable chance of success. These results are now possible as a result of intensive research on the effect of magnetic disturbances on shortwave transmission.