Signal level adjusting device, for RF communication equipment arranged to receive primary RF signals, said device comprising a tuner arranged to adjust its gain according to control signals in order to adjust the level of said received primary RF signals, and a demodulator arranged to generate said control signals from secondary signals representative of the adjusted signals output by said tuner, the tuner comprising: i) a gain control means (SI,R) arranged to output a first or second digital command signal respectively each time it receives the first or second digital control signal respectively (CS1,CS2), and ii) a gain adjusting means arranged to decrease or increase respectively its gain by a fixed value in response to the first or second digital command signal respectively; the demodulator comprising: i) a level control means arranged to generate the first or second digital control signal respectively each time it detects an increase or decrease respectively of the level of secondary signals representative of the adjusted signals output by said tuner, the level control means having a first output intended for delivering enable/disable signals and a second output intended for delivering said first and second control signals synchronized with a clock, ii) a multi-state buffer having a first and a second input and one output; and wherein the output of the multi-state buffer is coupled to the input of the gain control means (SI,R), the first and second outputs of the level control means are respectively coupled to the first and second buffer inputs, and the buffer output is operable to be in a high impedance state if said output of said level control means delivers a first enable/disable value, or to output the first or second control signal if the first output of the level control means delivers a second enable/disable value and wherein the signal level adjusting device further comprises an impedance means (R1,R2) coupled to the input of the gain control means and arranged to output a fixed high impedance voltage value at the input of said gain control means if the buffer output is in the high impedance state and the signal level adjusting device is operable to keep the gain constant if the impedance value at the input of the gain control means is equal to said fixed high impedance voltage value. i) a gain control means (SI,R) arranged to output a first or second digital command signal respectively each time it receives the first or second digital control signal respectively (CS1,CS2), and ii) a gain adjusting means arranged to decrease or increase respectively its gain by a fixed value in response to the first or second digital command signal respectively; i) a level control means arranged to generate the first or second digital control signal respectively each time it detects an increase or decrease respectively of the level of secondary signals representative of the adjusted signals output by said tuner, the level control means having a first output intended for delivering enable/disable signals and a second output intended for delivering said first and second control signals synchronized with a clock, ii) a multi-state buffer having a first and a second input and one output;