IQ Ref (NB-IoT)
In downlink mode, shows the reference IQ values of the subcarriers from the output of the FFT Fast Fourier Transform: A mathematical operation performed on a time-domain signal to yield the individual spectral components that constitute the signal. See Spectrum. (frequency domain).
Only the points of channels/signals selected in Composite Include are shown on this trace. The color of a point indicates which channel/signal the point belongs to. The colors of the channel/signals are shown in the Frame Summary trace.
The data in this trace comes from the interval specified by Measurement Interval and Measurement Offset.
See the IQ Meas topic for more information.
See Also
