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Abstract-The paper describes a method to make a noiseimmune radio communication system with high emission security. The noise-immunity and emission security of information transmitting are provided through the use of nondeterministic radio signals (white Gaussian noise). The block diagrams of the receiver and transmitter to develop the user hardware equipment are presented. The communication range, detection by means of modern passive radar systems and intentional interference effect are considered.

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Abstract.The paper describes a new method to develop a zero-type Wband radiometric receiver. The block diagram and operating algorithm of the digital control system are presented. The main advantages of the zero method in passive radio physical investigations in comparison with classical engineering solutions are shown.