400 MHz CATV System Performance Studies (1981)
By Dieter B. Brauer and Harry J. Reichert Jr., Jerrold Division General Instrument Corporation
Composite triple beat measurements of various trunk cascade lengths operating to 400 MHz with fifty-two channel loading are compared to various trunk cascade lengths operating to 300 MHz with thirty-five channel loading. The performance of distribution amplifiers is similarly compared. A system model from which these measurements were obtained is described and the calculated performance based on specifications is compared to actual performance. The improvement to subjective picture quality when using phase lock techniques is discussed. Cross-Modulation and Second Order Beat distortions are not addressed by this article.
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