Communications

Power system communications / B. Maibach.- The transmission characteristics of high-voltage lines at carrier frequencies / F. Eggimann, W. Senn, K. Morf.- The power line carrier system of the Cabora Bassa high-voltage direct current transmission line / W. Senn.- Application of a family of modern protection signaling equipment / H. Widmer.- Veriphon RT41 / W. Baschlin.- Radiocomuncation / H. Paul, U. Fierz, F. Heimgartner.- A microprocessor-controlled dispatching centre for small and medium-size radio systems / U. Fierz.- Modern technologies for communication equipment / M. Tiesnes.- Vericrypt 1100 portable speech scrambler / P. Hartmann, R. Werner.- 900-kW short-wave tetrode transmitter / R. Bartschi, F. Heimgartner, O. T. Snedkerud