Using white noise generators for creating a protected VHF radio communication channel

The article describes a method of creating a broadband radio channel protected from unauthorized access in the ultra-short wavelength range. Due to the large number of ultra-short-wavelength devices sold annually to the public, there is a need to protect the communication channel at short distances (in the same office, store, in warehouses, etc.) from accidental interference or targeted electronic warfare and industrial espionage. A cheap and effective way is to create a secure communication channel by introducing a white noise generator together with a filter that selects the necessary frequency for a whole range of heuristic criteria to solve real-world tasks. A feature of the operation of such a device will be that the generation of white noise will occur exclusively on the announced territory, without harmful interference to the population.