Operating Experience with an Experimental Crossband Frequency Diversity Industrial Microwave System

This paper describes the Potomac Electric Power Company´s experience in trying to provide very reliable microwave service over a troublesome path through the use of 6/12 GHZ crossband frequency diversity techniques. The results indicate that no measurable improvement was achieved over space diversity techniques in the face of multipath fades and that rain fades on the 12 GHz frequency make its operation unacceptable.