A. D. Vinogradov, P. A. Levashov, V. A. Mylnikov, E. N. Sazhin

For the structure of the direction-finding three-element equidistant circular dipole array in which phase centers of antennas are placed on a circle in equilateral triangle apexes on a perfectly conducting horizontal plane, the research of systematic errors of getting bearing with the help of direction finder by comparing of heterogeneous directional patterns in the conditions of a electrodynamic interaction of antennas is carried out. It is established, that over the range with fourfold contact ratio on frequency average squared errors of a direction finder with a circular array made from six-wired volumetric cylindrical antennas with moving-conductor sizes of the diameter 0,012-0,048 and the length 0,015-0,6 are characterized by values from 0,005 to 0,403 degrees while for six-wired volumetric conical aerials with the same length of the generatrix and with the apex angle of a cone of 30 degrees - from 0,023 to 0,492 degrees, and inappreciably differ from the one, made of the pointwise antennas receiving values from 0,001 to 0,381 degree thanks to what the direction-finding circular arrays from volumetric antennas can be used as transmitting ones. The article includes 14 pages, 5 drawings, 2 tables and references to 18 information sources