A mobile communications terminal divides a plurality of multipath signals associated with radio signals transmitted from a plurality of base stations using an S-CCPCH into groups by base station, i. The provision of the mode switching section in an integrated circuit makes it possible to perform mode selection, in particular to realize the mode selection with a simple circuit configuration resulting in a reduction of the production cost. The system includes a radar configured to transmit a polarized electromagnetic signal toward the projectile and a groove disposed on the side wall of the casing.