Abstract <p>A method of parametric identification of the antennas topology on the airframe based on the frequency and energy analysis of electromagnetic interference channels was developed. The frequency analysis determines the boundary values of the transmitter emission band frequencies, the boundary values of the receivers pass band and the affected frequencies bands of receivers for the boundary frequencies of the emission band and the pass band. In the case of detection of the frequency channel of unintended electromagnetic interference, an energy analysis is carried out, which is the final stage of the electromagnetic compatibility assessment. The penetration power of unintended electromagnetic interference is determined by the index of effect between transmitting and receiving antennas. As a criterion for antennas location optimization, it is proposed to use the minimizing the sum of products of effect indices combinations of transmitters on receivers over certain frequency channels. The developed algorithm for determining the optimal antenna coordinates is relied on the modified Hooke–Jeeves method.</p>