AUTOMATED COMPLEX FOR DETERMINING THE VALUE OF SIGNAL ATTENUATION
An automated complex is developed for measuring and calculating the real signal attenuation in the air and conductive lines. The system is designed to assess the information security and information protection efficiency from leakage due to side electromagnetic radiation and interference. The complex consists of two main parts - transmitting and receiving. The transmitting part consists of a signal generator and a transmitting passive antenna. The receiving part consists of a spectrum analyzer and a receiving antenna. The operation of the complex is based on measuring the signal level in the air or in the line near the generator and at a control point at a distance from it. Communication between the blocks of the complex is carried out in a wireless LAN using two access points. Automatic operation of the complex is provided by the control software installed on the laptop. The control software is developed using the LabView package. The software allows measuring the signal at any fixed set of frequencies or in a frequency band with a specified step. The measurement data can be saved to a file. Power supply to all mobile elements of the complex is provided by batteries. The battery life is enough for 3 hours of operation of the devices.