A substrate transfer apparatus and a method of driving the same includes a first guide block and a second guide block, and a single ball screw shaft connected to the first and second guide blocks moves the guide blocks in an axial direction thereof. The adaptive browse and flip features may be selected to receive program viewing suggestions. Methods, as well as a receiver and a transmitter that implement the methods are based on the setting of an intermediate frequency from an intermediate frequency band, which comprises at least two different values. Upon initial synchronization, the communication device determines and stores a first channel profile of received multi-path signals relative to the initial synchronization, and then enters a sleep mode. Other embodiments are also described and claimed.