Fill level measurement device

A measuring device based on the time of flight principle, comprising:

• components embodied to generate, to transmit and to receive a measurement signal corresponding to a fill level of a material in a container and further embodied to convert the measurement signal into an analog intermediate frequency signal having an expected signal frequency within a predetermined frequency range, the analog intermediate frequency signal including measurement information from the measurement signal;
• and
• an analog to digital converter configured to sample the analog intermediate frequency signal and to output a digital intermediate frequency signal, wherein the analog to digital converter is further configured to sample at a sampling frequency less than the expected signal frequency of the analog intermediate frequency signal,
• wherein when the frequency of the analog intermediate frequency signal corresponds to said expected frequency, the analog to digital converter outputs a digital intermediate frequency signal with a frequency that is shifted down with respect to the frequency of the analog intermediate frequency signal, and wherein a magnitude of the frequency shift corresponds essentially to the sampling frequency of the analog to digital converter.