Abstract
The paper outlines the technical requirements for a broadband, two-way single hop microwave link with hot stand-by facilities and automatic changeover. The basic design of the various units is described. The method of multiplexing the various signals, namely, radar video, radar sync, aerial bearing, two-state controls and supervisory data, is given in outline and also the techniques employed in order to provide continuous 24-hour operation by means of hot stand-by facilities with automatic changeover and sub-unit duplication are described.
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