The disclosure relates to a method for determining a transfer function of a transmitting system of a magnetic resonance device, to a method for the correction of a transmission signal of a magnetic resonance device, to a corresponding magnetic resonance device, and to a computer program product for carrying out the method. The method includes determining a transfer function using a transmission characteristic of a transmitting system of the magnetic resonance device, wherein the transfer function is frequency-dependent. A transmission signal may be corrected using the transfer function. An excitation pulse may be emitted by the transmitting system using the corrected transmission signal.