The present invention relates to a tunable compensation device and method for received signals. The tunable compensation device comprises a first antenna, a compensation device, a second antenna and a signal processing unit. The first antenna receives a first radio wave. The compensation device receives and compensates the first radio wave. The second antenna receives a second radio wave. The signal processing unit receives the compensated first radio wave and the second radio wave as to control the compensation by the compensation unit for the first radio wave. The tunable compensation method is characterized in that the first radio wave received by the first antenna is used to modulate the second radio wave received by the second antenna.