The present invention describes a method implemented by a radiofrequency device of a gateway of a remote-reading apparatus which also includes a plurality of meters, the gateway also including a hub communicating with said radiofrequency device as well as with an external telecommunications network, the method including the steps of: receiving from the hub a downstream gateway signal produced in accordance with a network synchronisation signal from a clock of the external telecommunications network; and adapting the radiofrequency transmissions to the meter and/or the radiofrequency receptions from the meter using said received downstream gateway signal, such that the phase and/or frequency of said radiofrequency transmissions and/or receptions are phase-synchronised in accordance with the network synchronisation signal.