FIELD: radio communication. SUBSTANCE: microprocessor of transceiver reads given first minimal value and first maximal values for level of received input signal and measures instantaneous value of control voltage and converts it into level of received input signal, which provides detection of fault. Respective device has stepping-down converter, control board of transceiver which has possibility of external start and comprises microprocessor, analog-to-digital converter and memory unit. EFFECT: fault detection by means of measuring control voltage value of automatic gain control unit and IF detection value. 19 cl, 7 dwg, 3 tbl
