Intermodulation Noise and Products Due to Frequency-Dependent Nonlinearities in CATV Systems

The noise power spectral density and sinusoidal response at the output of analog coaxial cable lines having amplifiers with frequency-dependent nonlinear characteristics are derived. Their use for the design and optimization of coaxial cable systems for TV transmission is demonstrated. Tables are given from which the levels of the intermodulation products for conventional 12- and 30-channel video systems can be readily obtained.