| 摘要 |
PURPOSE:To enlarge the service area of preset reception by simultaneously storing the frequency of a station which is to be preset and the frequency of a station having the same broadcasting content with the station to be preset in a preset memory. CONSTITUTION:The tuner T1 of a first receiver is tuned to the frequency of the desired station which is to be preset. During that time, the tuning frequency of a tuner T2 in a second receiver is sweeped by an instruction signal f2 from a microcomputer MC. When there is a reception station, the reception signal is detected in a detector D2 and the output waveform is compared with the output waveform of a detector D1 in the first receiver in an audio signal comparison part COMP. Thus, a network operation in which the reception station by the second receiver at that time is set to be a network station is executed when the output waveforms from both receivers are detected to be the same, and the frequency of the network station is stored in the preset memory PM. |
