Show Broadcasting on Short Waves May a Clear Air Tangle NEW YORK Jan 19 By NEA The Service possibility of using short waves for practical broadcasting broadcasting broad broad- casting purposes is attracting the attention ot of leading radio and electrical electrical elec- elec engineers who are conducting exhaustive experiments in hopes of perfecting broadcasting below the meter wave length We Ve are beginning to glimpse the possibilities ot of short wave transmIssion says DavId vice president and general manager of the Radio Corporation of Ameri- Ameri ca One of the greatest hopes of solving the problem of interference ence that jumble of transmission between signals from different stations sta- sta lies in the further eX lurli- lurli tion of short wave transmission continues Short wave lengths promise to open up not only new paths for wave propagation t a large number of useful communication channels Almost all of the tho long wave transoceanic telegraph stations In Inthe inthe the world are crowded into a frequency frequency fre- fre quency band about cycles wIde The available short wave field below meters Includes approximatelY approximately ap- ap proximatelY cycles giving giving ing some Indication of what the future future fu- fu ture holds for radio tion In dIscussing experiments with short waves pointed out as the most remarkable remarkable- of these the ability of short waves to travel great distances and aoel often otten be unheard unheard un- un heard nearby It is not uncommon for short wave reception to be excellent 2000 miles from the transmitter and especiallY poor at a distance ot of miles H |