| 摘要 |
Combination-tuner for receiving Ground wave and satellite wave, the tuner comprising: A satellite frequency output part for receiving satellite wave, a ground frequency output part for receiving ground wave, first switching means to input selectively the RF signals which are output through the satellite frequency output part or ground frequency output part by control signals, IF signal forming means for forming IF signals, second switching means to input selectively the IF signals, low pass filters to filter selectively ground wave or satellite wave out of second IF signals which is output though the second switching means. |
