Method for synchronisation of a central station and a plurality of transmitters (2 1, 2 2,..., 2 i), in particular in a single-frequency network, with the following steps: • generation or reception of a first reference time signal (s REF1) having a high time and frequency accuracy in the short and long time horizon, and of a second reference time signal (s REF2) supplied to the central station and having a low time and frequency accuracy in the short time horizon and a high time and frequency accuracy in the long time horizon, • generation of a transport data stream (s centr.) to be supplied to a plurality of transmitters (2 1, 2 2,..., 2 i) and having a time-variable data rate corresponding to the frequency of the second reference time signal (s REF2) by the central station with data packets (n(i)) distributed in the transport data stream (s centr.) containing the transmission time (t transm.1, t transm.2,..., t transm.i) of the data packet (n(i)) to the transmitters (2 1, 2 2,..., 2 i) referenced to the first reference time signal (s REF1), and with the time accuracy of the transmission time (t transm.1, t transm.2,..., t transm.i) of the respective data packet (n(i)) optimised by averaging the time and frequency accuracy of the second reference time signal (s REF2) over time, and • time-displacement of the transport data stream (s centr.) received from the central station by the respective transmitter (2 1, 2 2,..., 2 i) until the data packets (n(i)) of the transport data stream (s centr.) containing a transmission time (t transm.1, t transm.2,..., t transm.i) in each case are transmitted at the correct transmission time (t transm.1, t transm.2,..., t transm.i) with respect to the first reference time signal (s REF1) supplied to the respective transmitter (2 1, 2 2,..., 2 i). • generation or reception of a first reference time signal (s REF1) having a high time and frequency accuracy in the short and long time horizon, and of a second reference time signal (s REF2) supplied to the central station and having a low time and frequency accuracy in the short time horizon and a high time and frequency accuracy in the long time horizon, • generation of a transport data stream (s centr.) to be supplied to a plurality of transmitters (2 1, 2 2,..., 2 i) and having a time-variable data rate corresponding to the frequency of the second reference time signal (s REF2) by the central station with data packets (n(i)) distributed in the transport data stream (s centr.) containing the transmission time (t transm.1, t transm.2,..., t transm.i) of the data packet (n(i)) to the transmitters (2 1, 2 2,..., 2 i) referenced to the first reference time signal (s REF1), and with the time accuracy of the transmission time (t transm.1, t transm.2,..., t transm.i) of the respective data packet (n(i)) optimised by averaging the time and frequency accuracy of the second reference time signal (s REF2) over time, and • time-displacement of the transport data stream (s centr.) received from the central station by the respective transmitter (2 1, 2 2,..., 2 i) until the data packets (n(i)) of the transport data stream (s centr.) containing a transmission time (t transm.1, t transm.2,..., t transm.i) in each case are transmitted at the correct transmission time (t transm.1, t transm.2,..., t transm.i) with respect to the first reference time signal (s REF1) supplied to the respective transmitter (2 1, 2 2,..., 2 i).