The hardware and software system for protecting information technology facilities from PEMI reconnaissance "LGSh-504" is designed to generate and emit a broadband high-frequency signal in the frequency range from 0.009 to 1000 MHz. The special feature of the "LGSh-504" product is the ability to smoothly and independently adjust the level of spectral density of radiation in seven frequency sub-ranges. This allows you to form the required shape of the radiation spectrum during installation depending on the required operating conditions.
The "LGSh-504" product consists of:
a noise generator "LGSh-504NCh" - a low-frequency signal generator (frequency range from 0.009 to 30 MHz, can be used with external loop antennas);
a noise generator "LGSh-504VCh" - a high-frequency signal generator (frequency range from 0.009 to 1000 MHz);
a power supply;
hardware and software complex "Web" - a device for remote control of high-frequency generator operating modes.
1. The "Web" hardware and software complex consists of the "Web" module, which is a unit with a remote DVI-D cable plug and the "Web 1.0" software. The unit body contains an RJ-45 socket for connecting to an Ethernet network.
2. The "LGSh-504VCh" product is a broadband generator (from 0.009 to 1000 MHz) with a built-in antenna. The "LGSh-504VCh" product is made in the form of a flat thin (up to 17 mm) radiating plate, which can be "camouflaged" as a picture or drawing on the wall. The "LGSh-504VCh" product has the ability to smoothly and independently adjust the level of spectral density of radiation in six frequency sub-ranges. Average frequencies of crossover filters: 75, 225, 375, 525, 700, 900 MHz.
3. Product "LGSh-504NCh" - a generator (from 0.009 to 30 MHz) with the ability to smoothly adjust the level of spectral density of radiation in one frequency range. The average frequency of the crossover filter is 15 MHz. To improve the efficiency of which it is necessary to use external loop antennas in the form of four loops of wire laid along the perimeter of the plane (wall, floor, ceiling). It is recommended to place external loop antennas in two or more mutually perpendicular planes.
The signal level at the output of the product with a 50 Ohm load in the frequency range of 9-150 kHz with a bandwidth of 200 Hz is not less than 65 dBμV (LGSh-504NCh) The signal level at the output of the product with a 50 Ohm load in the frequency range of 150 kHz-30 MHz with a bandwidth of 9 kHz is not less than 65 dBμV (LGSh-504NCh) The signal level at the output of the product with a 50 Ohm load in the frequency range of 30-1000 MHz with a bandwidth of 120 kHz is not less than 65 dBμV (LGSh-504VCh) The range of adjustment of the levels of spectral components at the middle frequencies of the separation filters (15, 75, 225, 375, 525, 700, 900 MHz) is not less than 30 dB Maximum power signal supplied to the antenna of the LGSh-504VCh Product, W, not less than 0.25 Maximum power of the signal supplied to the antenna of the LGSh-504NCh Product, W, not less than 0.07 Maximum number of Spider Web modules connected to a PC, not more than 255 Operation mode around the clock Mean time between failures not less than 10,000 hours Average service life 10 years