The Problems Centering about the Measurement of Field Intensity

A brief recount of some of the major contributions to radio field intensity measurement work is given, showing that these represent a great deal of the groundwork on which future developments will be based. The general problems of this sort of measurement work are discussed, as well as the equipment with which the Radio Division of the Department of Commerce expects to handle them. Typical illustrations of radio transmission in cities are given, showing the necessity and importance of field intensity surveys in the location of radio stations. The prediction is made that the time will come when all radio broadcast transmitters of 1 kw or more power will be located on the basis of radio field intensity surveys.