A.V. Korennoi - Dr. Sc. (Eng.), Professor, Department of Communication facilities, MESC «Zhukovsky-Gagarin Air Force Academy» (Voronezh). E-mail: korennoj@mail.ru D.S. Yudakov - Lecturer, Department of Communication facilities, MESC «Zhukovsky-Gagarin Air Force Academy» (Voronezh). E-mail: smersh-2@mail.ru