A circuit arrangement for generating local oscillator signals is supplied with a reference frequency signal by means of a signal input. A frequency divider is used to derive a second signal from the reference frequency signal. The reference frequency signal and the second signal are supplied to a selection device, where one of the signals is output on the basis of a first selection signal. In an auxiliary signal generator, a single auxiliary signal at an auxiliary frequency is generated on the basis of a second selection signal. In a frequency conversion device, a local oscillator signal which can be tapped off on the signal output is derived from the output signals from the selection device and the auxiliary signal generator.