The hardware and software system for protection against PEMI "LGSh-507" is designed to generate and emit a broadband high-frequency signal in the frequency range from 1 to 2 GHz. The special feature of the "LGSh-507" product is the ability to smoothly and independently adjust the level of spectral density of radiation in 5 frequency sub-ranges. This allows you to form the required shape of the radiation spectrum during installation depending on the required operating conditions.