Terminal and repeater equipment for the first operational wave-guide system

The paper presents a fairly concise descriptive account of the millimetric-band waveguide equipment envisaged for operational use in trunk transmission by the British Post Office. It explains how the repeater spacing is chosen and how the circuit capacity could be built up gradually over many years; it also shows how the service requirements of the system will be met. The functions of the various equipment modules are described, together with an outline of the way it is expected that they will be realized.