LGS-504 hardware and software complex for protection against TEMPEST is designed to generate and radiate a broadband high-frequency signal in the frequency band of up to 1 GHz.LGS-504 is peculiar in that it enables gradual and stand-alone adjustment of the spectral radiation density in seven frequency sub-bands. This helps create the required form of the radiation spectrum, when installing based on the existing operation conditions.

LGS-504 consists of the following components:

LGS-504NCH - noise generator, which is a low-frequency signal generator (frequency band of 0.009 to 30 MHz, can be used with outer frame antennas);

LGS-504VCH - noise generator, which is a high-frequency signal generator (frequency band of 0.009 to 1,000 MHz);•Power supply unit;

Power supply unit;

Pautina hardware and software complex, which is a remote control device used to manage the operation modes of high-frequency generators.

1.Pautina HSC consists of the Pautina module, which is a unit with a detachable DVI-D cable plug, and Pautina 1.0 software. There is an RJ-45 registered jack for Ethernet connection inside the unit’s case.

2.LGS-504VCH is a broadband generator (0.009 – 1,000 MHz) with a built-in antenna. The Product is made as a flat thin (up to 17 mm) radiating plate that can be concealed behind a painting on the wall. LGS-504 enables gradual and stand-alone adjustment of the spectral radiation density in six frequency sub-bands. The average frequencies of the branching filters are as follows: 75, 225, 375, 525, 700, 900 MHz.

3.LGS-504NCH is a generator (0.009 – 30 MHz) that enables gradual adjustment of the spectral radiation density in one frequency sub-band. Average branching filter frequency is 15 MHz. It is possible to increase the efficiency of the branching filter by using outer frame antennas represented by four cable loops arranged along the surface perimeter (wall, floor, ceiling). It is recommended that outer frame antennas be placed in at least two mutually perpendicular surfaces.