Application of system design principles to high channel density air-ground telephone service

Directed toward FCC Docket 16073 on air-ground telephone service by single sideband, a study has been made of a high channel density 450-MHz communication system employing 6 groups of 10 channels each in a 300-kHz band. To accomplish necessary tolerance to out-of-band transmitter radiation, all mobile stations need automatic power output control. Other important system features, such as privacy and first come, first serve from queue when all busy, result from the use of a common data channel. With the accomplishment of the necessary equipment and logical techniques, a communication system of much greater frequency utilization appears technically and economically feasible.