“…Thus, in [9], noise immunity of the aircraft responders of the CSS system was assessed and it was shown that, with a flow rate of the request signals of 5000, the aircraft responder readiness ratio was only 0.3, which confirms the low information security of the system in question. The CSS data communication bandwidth (1030-demand signal communication channel; 1090-info packet communication channel) is severely overcrowded, it must be highlighted, which is noted, in particular [10][11][12][13][14][15]This affects a considerable intra-system interfering density in-demand channel and response channel and, as a consequence, considerably decreases the noise immunity of the measured CSS [9]. For example, in [10] it is shown that (band 1030/1090 MHz) which is assigned for watching the flow of traffic-air, containing the CSS, prevention of collision system and ADS-B systems, is undergoing weighty overload, and three other approaches are presented for using CSS differ powers of query that consider azimuth subdivisions, and ADS-B tracking info of aircraft to decrease the spectrum overload.…”