t o i u03c4 that is to say l times per data symbol or put differently at the same rate as the sampling pulses of sampling arrangement 21 the correction number c q read at a discrete instant t o i u03c4 becomes available at the output 16 1 for data of the ram 16 in the form of a synthetic correction signal c i for the adjustment of the correction arrangement 12 said arrangement comprises a multiplier 17 and an adder 18 in the multiplier 17 the digital control signal r i is multiplied by a factor u03b1 whose absolute value is much smaller than unity for the generation of a number which will be denoted by u03b4c i and indicates the amount by which the synthetic correction signal c i must be changed in order to reduce the distortion occurring in the receive path 2 these numbers u03b4c i are applied to the adder 18 to which also the synthetic correction signal c i is applied the adder 18 produces in response to the signals applied to it a digital output signal which is equal to c i u03b4c i and which is applied to the input 16 2 for data of the ram 16 for changing the number c q which corresponds with the synthetic correction signal c i because of this change the memory location having the address q of the ram will store a new correction number c q equal to u03b4c i c i if now at a predetermined instant t o i.