Abstract: A receiving frequency selecting method for a vehicle-mounted RDS receiver, wherein a list of alternative frequencies being transmitted by former broadcasting stations are stored in a memory, and the RDS receiver chases the same broadcast program based on the stored list of alternative frequencies whenever the motor vehicle returns to the same broadcasting service area of the network wherein the stored list of alternative frequencies is effective for use. Further, the stored list of alternative frequencies data relating to frequencies of the received broadcast waves during the operation of chasing the same radio program are also utilized together with the stored list of alternative frequencies transmitted by the broadcasting stations for chasing the same broadcast program.