| 摘要 |
A dual tuner is provided to prevent selected and inputted signals from being alternatively inputted to a switch, thereby preventing interference between broadcasting signals inputted from the dual tuner. A dual tuner comprises a switch, the first tuner and the second tuner. The switch selects and outputs one or two broadcasting from two input terminals by two selection blocks. The first and second tuners convert a frequency of a desired broadcasting channel into an intermediate frequency in the broadcasting signal selected and inputted from the switch and demodulate the converted frequency. The switch comprises a selection block so that broadcasting signals inputted to the inside are not intersected.
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