The method involves determining a measured value distribution representing a high-frequency field distribution within a certain volume range under excitation of transmission mode of a high frequency antenna. Computation of the measured value distribution is optimized based on the homogeneity within the certain volume range on basis of a combination of the measured value distributions measured for different transmission modes. Independent claims are also included for the following: (1) a magnet resonance system with a high frequency antenna (2) a computer program product stored directly in a memory of programmable control equipment of a magnet resonance system.
