Computer-Assisted Frequency Selection in the Auxiliary Broadcast Band

The selection of frequencies in the Television Auxiliary Broadcast Service has not heretofore been a matter of great concern because of the relative lack of congestion in the auxiliary broadcast bands as compared to other microwave bands. However, this situation is changing, particularly in the popular 6875-7125-MHz band. The authors first describe a systematic procedure for selecting frequencies in this band that avoids interference both to and from existing auxiliary broadcast stations, including mobile stations, using only data available from FCC files. They next describe a computer program that has greatly improved the speed and efficiency of what is otherwise a tedious manual operation.