Source Frequency Response (Channel Quality)

Source Frequency Response (Balanced) is the frequency response of the stimulus source that is due to reflections/multipath. 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 the Ch Frequency Response trace description for more information.

I and Q Source Frequency Response Traces

There are also traces for I and Q that express the frequency response separately for the In Phase and Quadrature Phase components of the stimulus source. These traces are computed from the Balanced and Unbalanced responses.