The invention relates to a method and system for calibrating the transmission and/or reception of at least one mobile radio device wherein a respectively defined number of test signal reference level values in predetermined for the mobile device(s) for a specific number of frequencies of a test signal. The mobile radio device(s) track(s) the real generated and measured level values of the test signal to the respectively associated reference values of all tracings of the real received level values to the associated reception reference values are directly sequential by virtue of full specification of all frequencies and reference level values associated with each frequency to the mobile radio device(s) prior to the beginning of all measurements.