IZ1127C is a dual polarisation active antenna with build in low noise preamplifiers. The quad ridge antenna design is optimized for TEMPEST Level A measurements. Preamplifiers are connected directly to the antenna outputs to minimize losses and keep maximum sensitivity. Outputs from preamplifiers are selected by coaxial relay. Gain of the preamplifiers is about 25dB. Noise figure of preamplifiers is between 1.5 and 1.7dB. Power consumption is less than 450mA from 24V power supply.
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