RADIO COMMUNICATION SYSTEM WITH TRANSPONDER Russian patent published in 2009 - IPC H04B7/24 

FIELD: communication facilities.

SUBSTANCE: radio communications system with transponder contains the first and the second radio station, each of which contains unit of switching and conjunction, modulator, transducer, noninteraction filter, transmitting-receiving antenna, receiver, demodulator and monitor unit, and also transponder, consisting of transmitting-receiving antennas, receiver, signal level measuring unit, switch, transducer, power amplifier, oscillator, including the first, the second and the third boosters, the first, the second and the third divider, controlled oscillator, reference oscillator, low-pass filter, phase detector and liminal unit.

EFFECT: providing duplex radio and increasing of noise immunity of radio line at simultaneous improvement of quality of connection between consumers, located at significant distance from each other.

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