Abstract: A receiver is matched with two transmitters (8, 10, 12); the receiver (4) supplies a first transmitter (8) with an address and simultaneously stores the supplied address. The first transmitter stores the address supplied by the receiver. The receiver then supplies to a second transmitter (10) an address different from the address supplied to the first transmitter; the receiver simultaneously stores the supplied address. The second transmitter stores the address supplied by the receiver. The supply of different addresses for different transmitters enables to improve security by using between each transmitter and the receiver revolving code methods.