Influence of solar activity on the phase of the received signal VLF range

The effect of sunspots in the 21 cycle of solar activity on the phase of the received signal on two paths and different frequencies is considered. Experimental data were obtained from the phase of the signals received by the Omega radio navigation system. Distribution routes pass practically from south to north. It is shown that the influence of sunspots on the phase of the received signal is practically absent. It is necessary to consider other parameters of solar activity.