FIELD: radio engineering, communication.
SUBSTANCE: result is achieved by filtering an interference signal as a result of synchronous frequency tuning of the driving generator in a transmitting channel and heterodyne frequency for a first mixer in a receiving channel, as well as by generating a heterodyne signal for a second mixer in the receiving channel as a result of conversion in a third mixer of the heterodyne signal and the signal of the driving generator of the transmitting channel to obtain a second heterodyne signal at a differential frequency.
EFFECT: noise-immunity of the transceiver from targeted frequency interference.
2 dwg
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