What is the main reason for performing proof-of-performance tests in a cable system?

The primary reason for performing proof-of-performance tests in a cable system is to ensure compliance with FCC regulations. These tests are designed to verify that the cable system is operating within the technical specifications set by the Federal Communications Commission. This includes checking signal strength, bandwidth, and other important technical parameters to confirm that the service provided meets federal standards. Compliance not only helps in maintaining the quality of service offered to customers but also ensures that the cable operator avoids potential legal issues or penalties associated with regulatory violations.