By W. Richard Thompson, Warner Cable Corp.

An accurate layout in a cable television system has become an absolute necessity, now that CATV involves a highly sophisticated communications network. We now have to consider all FCC rules; we are talking about carrying 30 channels; and, we need to allow for return signal considerations. In short, we can no longer do the electronic design as we do the actual construction. The "best guess" method of system design worked when we were only carrying low band channels or even up to 12 standard channels, but these days are over.

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