Systems and methods for managing and providing content and services on a network system. In this context, the four input-end, second high-frequency signals are each supplied from one output-end, first high-frequency signal. In an initial learning mode, a storage portion stores, as an initial value, the pressure value output from the pressure sensor portion. Hence, those advantages are data wires in the invention shall be reduced and simplified loops. The mobile station then attempts to acquire a selected wireless communications system in accordance with the system acquisition sequence.