Tennessee Valley Authority´s 500-ky System - Communications

Basic factors in planning communication facilities for the Tennessee Valley Authority (TVA) new 500-kV system are discussed and descriptions given of broadband carrier coupling techniques, coupling equipment, and tests for power-line carrier measurements. Single-sideband power-line carrier equipment is evaluated in the light of its role in providing the bulk of communication services between terminals of TVA´s first 500-kV line. Expectations that insulated ground wires will perform as communications circuits and the line´s radio noise evaluation program are other items discussed.