The Calculation of the Service Area of Broadcast Stations

This paper is a comprehensive study of the practical considerations in the determination of the field strength laid down at any distance by a given radio station at any given location. All factors entering into such calculations are considered and practical means of their determination or estimation set forth. Methods are provided for the evaluation of field strength due to the space ray which should prove of value in further work on this subject. No attempt at extreme accuracy is made, the keynote of the paper being practicability.