Temperature, Temperature Design, and Automatic Level Control for CATV (1967)

By James R. Palmer

The development of a high-output solid-state amplifier has given new dimensions to CATV transmission system design and operation. The application of such amplifiers to trunk lines is discussed in this paper. The inherent advantages of high-output trunk and bridging amplifiers are analyzed. The environment in which a CATV transmission· system operates is examined with particular emphasis on temperature. Automatic level control and its operation with temperature change is explained. The overall result is improved system reliability through a great reduction in the number of amplifiers in the system and through improved level control as a result of better design. An important by-product is a reduction in the cost of electronic equipment.

One table and several definitions given in an earlier paper are reproduced here under the heading, "Objectives and Definitions".

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