Elimination Of Cross-modulation In CATV Amplifiers (1972)
By R. Richard Bell and Ronald Clarke, TRW Electronic Components Divisions, Western Research Laboratories
In this paper we will show how increased channel loading and output capability affects the performance levels of future CATV amplifiers. The expected operating levels of the transistors used in CATV amplifiers tomorrow is shown to be much greater than in the past. Transistor non-linearities causing cross-modulation, second order and triple beat forms of distortion, are discussed in light of increased peak output capability. A new transistor design and its performance in a discrete CATV amplifier circuit is presented.
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