A transfer apparatus includes a receiver to receive an input signal and to extract a clock signal from the input signal, an input signal interruption detector to detect whether an input signal is input, an oscillator, and a frequency setter to set an oscillation frequency of the oscillator such that a difference between the oscillation frequency of the oscillator and a frequency of a frequency division signal into which a clock signal extracted from the input signal is frequency-divided falls out of a passband width of a filter when the input signal interruption detector detects the input of the input signal.