| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna switching signal generation device having simple constitution. SOLUTION: This antenna switching signal, generation device having a function for receiving broadcasting waves from two satellites and capable of switching antennas, in accordance with a state whether a switching signal is superposed to antenna power to be supplied to an antenna is provided with a voltage dropping diode 10 connected to an antenna power supply in series, a switching element 9 connected to the diode 10 in parallel and capable of short-circuiting the diode 10 and a means for turning on the element 9 in a 1st satellite selection mode and periodically turning on/off the element 9 in a 2nd satellite selection mode.
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