Assessment of the possibility of using the direction finder of radio beacons on an unmanned aerial vehicle in search and rescue operations

The purpose of research is to coordinate the operation of the direction finding channel of radio beacons with the data transmission systems and control of an unmanned aerial vehicle using a remote control. Methods . Research methods are based on the application of principles of radio electronics, diagnostics and analysis of the technical condition of aircraft. Methods of multicriterial analysis, parametric and structural synthesis were used. The features of direction finding of radio beacons from unmanned aerial vehicles designed to track emergency situations were studied. An analysis of the critical assessment of the maximum range of direction finding of radio beacons from an unmanned aerial vehicle was performed. Results. Analytical formulas are given for calculating the maximum range of radio beacon direction finding from an unmanned aerial vehicle. The maximum range of radio beacon direction finding is calculated when using 2.4 and 5.8 GHz external antennas on unmanned aerial vehicles used in the Russian Emergencies Ministry and equipped with a digital direction finding system. Conclusion . The use of direction finding systems on unmanned aerial vehicles (UAVs) provides wide opportunities for application in various fields. This combination makes it possible to effectively detect and track radio sources, which is especially useful in search and rescue operations, environmental monitoring and safety. UAVs equipped with direction finders can quickly cover large areas, providing accurate location of signals that are difficult or impossible to capture from the ground. This makes them indispensable in situations requiring rapid response and high accuracy. In addition, the use of UAVs with direction finding systems reduces the risks to human life, providing the opportunity to perform tasks in hard-to-reach or dangerous areas.