White Paper: A New Way to Perform Realistic Lab Simulations of Cable TV Networks

Cover"Time-to-market" and "design-to-cost" – familiar buzz words for any engineer responsible for product development. Meeting these demands to the greatest possible extent requires early concept testing in order to detect and eliminate errors as soon as possible. For those who need to make that happen, simulations have become an indispensable tool for exposing design models and prototypes – in the lab – to the conditions that they will be subjected to later in the field. This approach is particularly useful when developing cable TV receivers and amplifiers, which must cope with many different types of interference effects. Simulating a complete cable TV network presents special challenges for test and measurement equipment.

All from the perspective of providing a lab-grade signal source, this paper discusses the intricacies of testing cable TV set-top boxes and line amplifiers. The testing of cable television receivers is addressed from the viewpoint of the requirements of SCTE 40 (Digital Cable Interface Standard). Similarly the testing of cable TV line amplifiers is addressed from the perspective of providing a test signal that is as close to ideal as possible.

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