The AR6A Single-Sideband Microwave Radio System: Radio-line physical design

The physical design of the AR6A radio-line equipment is the product of combining the system operating requirements with the technology available to meet those requirements economically. As part of the description of the radio-line equipment, we discuss the practical considerations for partitioning the circuit block diagrams into realizable units. Modularity is a new feature incorporated into the design of the transmitter and receiver radio bay. We also describe a novel thermal design detail used with discrete transistors in the IF circuits to ensure their reliable operation.