Countersurveillance technologies
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/ SEL SP-44 - active protection system for electric circuit and ground

SEL SP-44 - active protection system for electric circuit and ground

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.

• 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.
Noise frequency range 0.01 - 400 MHz
Lines protected power supply, ground
Quantity of independent noise signal channels ¹ 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 172 x 172 x 42 mm
Weight not more than 1.1 kg
¹ – for phase-to-ground and zero-to-ground circuits