RECEIVER

摘要

An apparatus includes an antenna selection unit (4) that is provided with a receiving antenna selection unit (4a) and a sequential antenna selection unit (4b) and that selects one of connected receiving antennas (2a to 2h), an RF receiving unit (5) that performs a demodulation process or the like to a radio signal received through the receiving antenna (2) selected by the antenna selection unit (4), and a signal processing unit (6) that performs a predetermined process to the signal after the process such as demodulation. When a radio signal transmitted from the body-insertable apparatus is to be received, the receiving antenna selection unit (4b) is driven, whereas when performance inspection of the receiving antennas (2a to 2h) is to be performed the sequential antenna selection unit (4b) is driven. The sequential antenna selection unit (4b) sequentially selects the antennas irrespective of receiving intensity, dissimilar to the receiving antenna selection unit (4a)