A signal handling device for handling a signal transmitted through a body, where the signal is coded with a coding scheme and associated clock rate, comprises a receiving unit configured to receive the signal, a signal sampler configured to sample at least a section of the signal with a sample rate that is higher than the clock rate of the coding scheme and form at least one series of samples of the signal, where the samples of a series have been sampled at a sampling position periodically recurring according to the clock rate, and a data analyzer configured to investigate if said at least one series fulfills a data sequence detection criterion, and set a sampling position for which a series of samples fulfills the data sequence detection criterion to be an operative sampling position.