A drive train for a header of a harvesting machine. The electronic diaper includes an upper and lower dry layer and an sbsorbing layer sandwiched between the two dry layers, a sensor attached on the upper or the lower dry layer. wherein a partial cross correlation between the BS pilot sequence and an RS pilot sequence, being the BS pilot sequence relayed by the RS is always \u20180\u2019. The second control signal has a phase opposite the first control signal. The other terminal of the second impedance component outputs an attenuated signal.