IQ Quad Err (Channel Quality)
IQ metrics are only available when Support Balanced/Unbalanced/IQ Responses is enabled.
(IQ quadrature error) indicates the amount of the angle skew between the I and Q signals for the data in the Analysis Interval. Ideally, I and Q should be 90 degrees apart. An IQ quadrature error of -300 mdeg means that I and Q are actually 89.7 degrees apart.
See Also
