An apparatus may include a sort circuit for receiving first and second
baseband signals, where the sort circuit shifting frequencies of the
first and second baseband signals. The apparatus may also include a
removal circuit for receiving the shifted first and second baseband
signals and for combining the shifted first and second baseband signals
to provide a frequency-modulated signal, and a symbol timing restoration
circuit for measuring a timing error in related symbols of the
frequency-modulated signal, for generating an address selection signal
that is proportional to the timing error, in response to a carrier
restoration signal, and for indicating restoration of the carrier.