colored by orange, at 11.2 GHz by magenta, at 8.2 GHz by green, at 4.7 GHz by
blue.

Figure 20: The RATAN-600 light curves, the measurements at 22.3 GHz are
colored by orange, at 11.2 GHz by magenta, at 8.2 GHz by green, at 4.7 GHz by
blue.

Figure 21: The radio spectra of PS quasars constructed using the RATAN-600
(green) and literature data from CATS (grey).

Figure 22: The radio spectra of PS quasars constructed using the RATAN-600
(green) and literature data from CATS (grey).

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