During which phase of the troubleshooting process is QAM channel measurement typically conducted?

QAM (Quadrature Amplitude Modulation) channel measurement is typically conducted during the diagnosing symptoms phase of the troubleshooting process. This phase is critical for determining the root causes of issues by assessing the performance of signals being transmitted through a network.

In this phase, technicians use QAM measurements to analyze the quality and integrity of the modulated signals over coaxial cables or fiber optics. These measurements provide detailed insights into the strength and quality of the signal, allowing the technician to identify specific symptoms of problems, such as noise interference or signal degradation. By accurately diagnosing these symptoms using QAM measurements, a technician can pinpoint issues that might need correction before moving on to implementing any solutions.

Understanding the performance metrics derived from the QAM measurements thus aids in narrowing down the potential causes of network issues, making this a vital part of the troubleshooting process.