Radio service channel techniques in a digital communications system

The report describes several radio service channel techniques that are candidates for use in the future Defense Communications System (DCS) digital upgrades. Overall operational and maintenance requirements and desires are discussed and used to evaluate the different techniques in determining the most desirable alternative. Both analog and digital radios are considered in the evaluation. Auxiliary service channel TDM equipment including the orderwire switching network and telemetry equipment are discussed in attachments to this report. A recommendation on the type of radio service channel to be used in the DCS is presented in the conclusion of this report.