Method for radio measuring applications, wherein - at least two radio nodes are provided, - at least one first radio node operates as an initiator and at least one second radio node operates as a transponder, - the first radio node and the second radio node each comprise an individual time transmitter, a signal processor, at least one antenna and a data interface, - a time offset is present between the time transmitters of the first radio node and the second radio node, - in a first step an initial signal is transmitted by the initiator at a first carrier frequency and the initial signal is received by the transponder during a first receiving time period, - in a second step a response signal is transmitted by the transponder at a second carrier frequency and the response signal is received by the initiator during a second receiving time period, - a step sequence of the first step and the second step is repeated at least once in the said sequence, - the initial signal and the response signal are coherent at least during each step sequence and - the carrier frequency of the initial signal and the carrier frequency of the response signal are changed within a predetermined frequency range with each repetition, characterised in that - the method operates either in a first mode or in a second mode, wherein - in the first mode the response signal is formed by the transponder at least from a part of the received initial signal and a transfer function and/or the time offset is or are determined on the basis of at least a part of the received response signals, wherein - in the first mode either a first complex signal vector is determined by the transponder from the initial signal and the response signal is formed from the first complex signal vector or from the reciprocal first complex signal vector or from the conjugated complex first signal vector, - or a first phase is determined by the transponder from the initial signal and the response signal is formed from the first phase or the inverted first phase and - in the second mode the response signal is formed in dependence on the received initial signal, at least two received initial signals are communicated by means of the data interface and at least one transfer function and/or the time offsets is or are determined on the basis of at least a part of the received response signals and at least a part of the received and communicated initial signals. - at least two radio nodes are provided, - at least one first radio node operates as an initiator and at least one second radio node operates as a transponder, - the first radio node and the second radio node each comprise an individual time transmitter, a signal processor, at least one antenna and a data interface, - a time offset is present between the time transmitters of the first radio node and the second radio node, - in a first step an initial signal is transmitted by the initiator at a first carrier frequency and the initial signal is received by the transponder during a first receiving time period, - in a second step a response signal is transmitted by the transponder at a second carrier frequency and the response signal is received by the initiator during a second receiving time period, - a step sequence of the first step and the second step is repeated at least once in the said sequence, - the initial signal and the response signal are coherent at least during each step sequence and - the carrier frequency of the initial signal and the carrier frequency of the response signal are changed within a predetermined frequency range with each repetition, characterised in that - the method operates either in a first mode or in a second mode, wherein - in the first mode the response signal is formed by the transponder at least from a part of the received initial signal and a transfer function and/or the time offset is or are determined on the basis of at least a part of the received response signals, wherein - in the first mode either a first complex signal vector is determined by the transponder from the initial signal and the response signal is formed from the first complex signal vector or from the reciprocal first complex signal vector or from the conjugated complex first signal vector, - or a first phase is determined by the transponder from the initial signal and the response signal is formed from the first phase or the inverted first phase and - in the second mode the response signal is formed in dependence on the received initial signal, at least two received initial signals are communicated by means of the data interface and at least one transfer function and/or the time offsets is or are determined on the basis of at least a part of the received response signals and at least a part of the received and communicated initial signals.