The Solar Tower and Two-Channel Solar Magnetograph at the Crimean Observatory

The system of the solar tower and two-channel solar magnetograph at the Crimean Observatory in USSR is introduced in this paper. The system is used to study solar oscillations by means of the spctral Doppler shift method. The accuracy of Doppler shift determined with the system is 1 m/sec and the statistcal error is ±0.2m/sec, with much higher stability. The 160 minute oscillation of the sun has been observed since 1975. The observational method for solar oscillations is also given in the present article.