Sadchenko, A.V., Kushnirenko, O.A., Al’khamidi, M.T. and Alkhadi, A.M. 2016. Method of measuring the amplitude directivity pattern of parabolic mirrored antennas in the audio frequency range. Technology and design in electronic equipment. 1 (Feb. 2016), 8-12. DOI:https://doi.org/10.15222/TKEA2016.1.08.