A radio frequency transmitter arrangement for a magnetic resonance
apparatus has a distribution unit and an antenna unit, wherein the
antenna unit, to generate radio frequency fields, is fashioned in at
least two orthogonal modes, and the distribution unit is fashioned for
the division of an RF transmission signal into at least two mode feed
signals. At least one adjustment unit is provided to adjust the amplitude
and/or phase of one of the mode feed signals and is connected with the
antenna unit such that each of the mode feed signals generates a radio
frequency field in one of the modes. A multiple transmitter arrangement
has at least two radio frequency transmitter arrangements and at least
two 180.degree. hybrids. A method is provided to determine at least one
setting parameter of the adjustment unit.
