CONTROL METHOD FOR SEARCHING BROADCASTING CHANNEL OF CAR AUDIO

摘要

PURPOSE: A control method for searching the broadcasting channel of a car audio is provided to easily distinguish a possibility to receive the broadcasting channel in some difficult regions when driving and to turn of the radio automatically without the broadcasting. CONSTITUTION: A control method for searching the broadcasting channel comprises the steps of: counting an automatic search times without the receivable broadcasting channel; generating a message and warning sound for non-channel when the counted automatic search times is over than the standard times and transferring an action mode after turn off the radio tuner; comparing the field strength of the received broadcasting frequency with the standard field strength to judge a weak field strength signal with the broadcasting channel; counting the broadcasting receiving times of the weak field strength with judging the channel as the weak field strength; and generating a message and warning sound to show the broadcasting channel reception of the weak field strength when the times is more than the settled standard and transferring the action mode after turning of the radio tuner.