Published online by Cambridge University Press: 14 August 2015
At the Engelgardt Observatory of the V.I. Uljanov-Lenin Kazan State University systematic azimuthal radio echo observations are carried out at a wavelength of 8 m. Simple radio echo equipment is used with a five-element Yagi antenna. The observational program provides for a 30° turn of the antenna in azimuth every 5 min.