Abstract :
The continuing expansion in the uses of radio, and the unexpected phenomena encountered in the very high frequencies now so extensively employed, make important the determination of the laws governing radio transmission. Fuller knowledge of these phenomena is necessary before radio can fully grapple with the limitations at present imposed upon it by atmospheric disturbances, interference, and fading. To this end a number of university and other laboratories are engaging in a measurement program under the direction of the Bureau of Standards. The work includes measurements of field intensity, fading, direction variation and atmospheric disturbances, at the broadcast and higher frequencies.
