FIELD: communications engineering. SUBSTANCE: transceiver has independent adder and divider for complete isolation of transmitting and receiving channels. Transceiver incorporates first and second circulators coupled, respectively, with first and second transceivers. Transmitting channel is organized between first and second circulators and antenna to transmit signals in response to reception of pre- transmission signal. Receiving channel is organized between first and second circulators and antenna to transmit signal received in response to pre-reception signal. Change-over controller functions to generate pre-transmission signal in transmit mode of operation and pre-reception signal in receive mode. EFFECT: improved noise immunity due to reduced cross-talk interference between transmitted and received signals; improved intermodulation characteristics. 4 cl, 2 dwg
