Daily periods in VLF radiation and their connection with X-ray

Registration of noise electromagnetic radiation at frequencies at 0.7, 1.2, and 5.3 kHz for 1997–2006 has been carried out in Kamchatka. It showed that in the spectra of the VLF noise peaks are coincident with daily periods of Earth's rotation relative to the Sun (1440 m) and relative to the stars (1436 m). Direction-finding observations for 2002-2006 in the frequency band 3–60 kHz were performed, which showed that these peaks are present in the spectra of the signals from thunderstorms. It is shown that the impact of the received signals of VLF emissions apparent effect on the region of the ionosphere $D$ galactic X-ray sources.