Source Tracking Response (Channel Quality)
The X-axis of the trace is time, with t=0 matching the start of the Analysis Interval, and length matching the Analysis Interval. The unitless complex values represent the phase and gain drift estimated on the measured signal. Using different coordinate transforms of this trace help isolate signal drift characteristics like phase, amplitude, or frequency (using Group Delay coordinate transform).
The Stimulus Source traces are good for troubleshooting (if your DUT Device under Test: An acronym used to describe some type of electrical apparatus connected to test instrumentation. The apparatus can range from a single component to a complex subsystem such as a mobile phone, base station or MSC. response traces look bad, check the Stimulus Source traces to see if the stimulus looks as expected).
See Also
