FIELD: radio engineering.
SUBSTANCE: in process of searching, antenna system of sought-for transmitter is acted upon by means of elementary antennas switching in passive antenna system displaced in limited space of searching, to massive base, and radio signal is received outside limited space, which after amplification and detection is compared to available reference signal, such as signal of antennas switching control, using results of comparison, decision is made on availability of hidden radio transmitter.
EFFECT: high selectivity to illegally installed radio transmitters, noise immunity to background radio signals, possibility to provide a high efficiency of hidden radio transmitters detection with any type of carrier modulation, including radio transmitters with closed or masked radio channel.
1 dwg
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