The device is a technical mean for active information protection for the top-secret category objects.

SEL SP-44 prevents information leakage through the powersupply and ground lines providing a masking noise there in the frequency range of 0.01 - 400 MHz. It also suppresses wiretaps which are using these lines as a data-transmitting channel.

Advantages:

• Doesn’t influence PC performance and consumer electronics functioning.

• Two independent uncorrelated noise generators for the low and high frequency bands for the circuits "phase" - "earth" and "zero" - "earth" allows to eliminate the possibility of informative signal

interception for the anti-phase and in-phase connection schemes.

• During operation the unit constantly performs a self-test, and in case of failure gives sound and light signal.

Lines protected - power supply, ground

Quantity of independent noise signal channels (for phase-to-ground and zero-to-ground circuits) - 2

Noise quality factor - not less than 0,9

Independent noise level adjustment range in the frequency bands, not less than:

    0.01 - 0.5 MHz - 20 dB

    5 - 400 MHz - 20 dB

Noise actuation control - manual, wired remote control, RS-485

Power supply - 220 V ± 10% 50 Hz

Dimensions - 172x172x42 mm

Weight not more than - 1.1 kg