A receiving apparatus which is used while connected to a plurality of
antennas, the receiving apparatus receiving a radio signal through the
antennas to perform a predetermined process to the received radio signal,
the radio signal being transmitted from a body-insertable apparatus
inserted into a subject, includes a receiving antenna selection unit that
selects the antenna which is suitable for reception of the radio signal
when the radio signal is transmitted from the body-insertable apparatus;
a sequential antenna selection unit that sequentially selects each of the
plurality of antennas when performance inspection of the plurality of
antennas is performed; and a signal processing unit that performs a
predetermined process to the radio signal received through the antenna,
the antenna being selected by the receiving antenna selection unit or the
sequential antenna selection unit.