FIELD: mobile radio communication systems. SUBSTANCE: device has error signal detector that functions to detect error between input and output signals of power amplifier by comparing feedback output signal with input signal; predistortion reference table 170 for predistortion data saving; predistortion reference table controller 164, 166 for updating reference table 170 according to location of current input data by adding error signal arriving from signal-error detector to output signal of predistortion reference table 170. Device also has reference table 138 for saving lead control data; controller of lead reference table 138 for output of respective lead control data from lead reference table 138 by detecting error signal value; linearizer for distorting input signal according to predistortion data and for additional adjustment of amplifier gain for input lead control data; and power amplifier 122 for power amplification of linearizer output signal. EFFECT: improved correction of nonlinear characteristics of transmitting-stage and power-amplifier active parts due to predistortion and lead control. 13 cl, 2 dwg
