| 摘要 |
PROBLEM TO BE SOLVED: To provide a satellite signal changeover device that can fully compensates signal level. SOLUTION: A one satellite signal wave, from one input terminal 12 among input terminals 12, 14, 16, 18, 20 provided corresponding respectively to satellite signals from plural converters, is fed to a changeover device and the signal is outputted to an output terminal 50 via a distributor 32 and a mixer 70. Each of the satellite signals from the input terminals 14, 16, 18, 20 is distributed into four by distributors 42, 44, 46, 48 respectively. Changeover switches 66, 68, 70 select one of the distributed satellite signals and give the selected signal to the output terminal 50. The signal at the output terminal 50 corresponds to one of the satellite signals received by the input terminals 14, 16, 18, 20. A voltage detector 74 receiving a control signal makes the changeover switches 66, 68, 70 select the satellite signal corresponding to the control signal. A current is supplied from an external power supply 13 to the input terminal 12, and current paths 82, 84, 86, 88 are formed from the input terminal 12 to the other input terminals 14, 16, 18, 20.
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