Potential separation for filling level radar

A filling level radar for measuring a filling level in a container and for connection to a two-wire loop, comprising:

• an electronics unit generating a transmission signal and receiving and evaluating a receiving signal, the unit generating and emitting an output signal as a function of the evaluated receiving signal;
• a potential separation situated within the unit and providing a galvanic separation of first signals in a first region of the unit from second signals in a second region of the unit;
• and
• a voltage supply;
• wherein the unit includes an input- and output circuit which regulates and emits the output signal and which is arranged in the first region;
• wherein the electronics unit comprises a second electronics component that is arranged in the second region;
• wherein the voltage supply is adapted for supplying the input and output circuit of the electronics unit with a first operating signal and for supplying a second electronics component of the electronics unit with a second operating signal;
• wherein the transmission signal is generated in the second region;
• and
• wherein the potential separation is designed for separating the first operating signal from the second operating signal within the voltage supply.