| 摘要 |
There is provided an attenuation apparatus for attenuating a signal received via a first terminal thereof and outputting the attenuated signal via a second terminal thereof. The attenuation apparatus includes a first transmission path and a second transmission path which respectively have different attenuation amounts for the signal, a connection switching section that switches, between the first and second transmission paths, a transmission path connected to the first and second terminals so as to be positioned therebetween, and a first ground connection switching section that connects, to a reference potential, respective ends of the first transmission path and a contact point positioned on a path between the respective ends of the first transmission path, when the second transmission path is electrically connected to the first and second terminals so as to be positioned therebetween.
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