Flat generator of masking radio interference GSh-111P Active protection system against leakage through PEMIN channels SEL-111 Chiffon

The flat generator GSh-111P has two independent channels for generating masking interference with a digital multi-frequency equalizer for adjusting the levels of the electromagnetic field and electrical noise signals. The generator is made according to a patented scheme of a "thermal" noise signal generator with a continuous and uniform spectrum, which ensures a high noise quality factor in a wide frequency band.

Electromagnetic compatibility with civilian radio-electronic equipment is achieved by smooth adjustments of the masking noise by a multi-band frequency equalizer in eight sub-ranges to levels that do not exceed those permitted by the State Commission for Radio Frequencies and Sanitary Rules and Regulations, when installed in a protected room.
The housing of the generator GSh-111P is made of metal-plastic and contains:
- a motherboard with elements and connectors placed on it for connecting modules and external devices that form functionally complete GSh units.
- channel for generating electromagnetic noise signal with outputs for connecting radiating antennas (outputs "A" and "MA").
- channel for generating electrical noise voltages with an output for connecting devices to conductive lines (output "B").
- digital multi-frequency equalizer for each channel.
- system for monitoring GS parameters based on a microprocessor with non-volatile memory and protection against unauthorized access.
- operating time counter.
- automatic system for self-diagnostics and direct monitoring of radiated noise electromagnetic field levels via antenna input "K"
- interface for GS control and monitoring via Ethernet 10/100 Mbit/s;
- control and indication system (film keyboard, LCD indicator and LEDs).
The noise generator power supply module with a device for inducing a signal to the power supply and grounding circuits NS-111 is located in a separate housing.

Specifications:
Generated noise signal range 10 kHz – 3,000 MHz
Noise quality entropy factor not less than 0.98
Noise level adjustment depth in each sub-range Not less than 30 dB
Sub-range intervals for adjusting the noise level at the output "A" 0.01–30, 30-140, 140-280, 280-520, 520-800, 800-1800, 1800-2000, 2000-3000 MHz
Sub-range intervals for adjusting the noise level at the output "NS" 0.01-30, 30-150, 150-400 MHz
Built-in LCD screen size 62x18 mm
Indication of normal operation mode LED and text
Emergency mode indication LED, text and sound (buzzer)
Control from the panel, wired remote control, via Ethernet 10/100 Mbit
Generator power supply network 220 V 50 Hz via DC adapter 12 V / 1.5 A
Dimensions of the generator unit GSh-111P 170x140x30 mm
Dimensions of the power supply and guidance module 120x60x40 mm