Spectrum Plot - Avateq

The Spectrum plot is the default page when accessing the Receiver. The Spectrum plot is the most convenient view of the analyzed and/or monitored signal. The plot consists of several individually coloured components identified in the plot legend in the upper-left corner of the plotting area:

Main signal spectral output
In-band interference (noise)
Emission mask
In-band interference threshold
FCC -47dB level (for ATSC 1.0 and ATSC 3.0)

The plot's instrumental box provides tools to make measurements in a similar to a regular spectrum analyzer way.

Link: https://avateq.com/wiki/signal-analysis/spectrum-plot