| 摘要 |
PURPOSE:To enable to receive the picture without ghost, without the extension of cables, by mixing the signal from one antenna among a plurality of antennas with the signals from other antennas after frequency conversion. CONSTITUTION:The frequency converter 12 is connected to one antenna 10 and high frequency signal is converted into intermediate frequency signal. Further, it is mixed with the signal from other antennas at the mixer 13. The mixer 13 and the branch unit 14 are tied with one cable 15. The output from the branch unit 14 is branched into two at the two branch unit 16, and one output is input to the phase shifter 18 directly and another output is converted to original frequency at the frequency converter 17 and then input to the phase shifter 18. |
