Low-Frequency High Power Broadcasting as Applied to National Coverage in the United States

With P. P. Eckersley´s general theory derived from north European practice as a starting point, the possibilities of broadcasting in the United States on frequencies around 200 kc are examined from the viewpoint of national coverage. It is shown that Eckersley´s curves can be applied approximately to the American terrain, and that as a first approximation seven low-frequency transmitters radiating at maximum power levels between 1000 kw and 10,000 kw may be expected to cover practically the entire country with true broadcast service. Objections to and advantages of such a structure operated as a supplement to existing broadcast facilities are discussed.