With the objective of providing a scanning receiver capable of capturing a
target radio wave in an extremely short period of time by use of a simple
constituting means, a plurality of wide frequency division bands in which
a full frequency range is divided into predetermined frequency ranges are
set and the field intensities of received radio waves are retrieved using
the output of an intermediate frequency amplifier circuit over the set
wide frequency division bands in order. Further, when a received radio
wave having a field intensity greater than or equal to a prescribed level
is obtained upon the above retrieval, receive frequencies are swept from
one end of each of the wide frequency division bands to the other end
thereof. When a target radio wave can be captured upon the above
sweeping, transition to the operation of receiving the target radio wave
is performed. When the target radio wave is not obtained, the retrieval
of field intensities of received radio waves and the sweeping of receive
frequencies following the retrieval are performed over the non-retrieved
wide frequency division bands in a sequential order to capture the
corresponding target radio wave.