A method and apparatus are provided for automatic alignment of a notch
filter in a receiver. The method comprises the steps of determining a
frequency of an interfering signal, monitoring an energy in the
interfering signal, tuning the notch filter based on an initial tune
value, detecting an energy content in the radio signal after the tuning
step, incrementally tuning the notch filter away from the initial tune
value while monitoring the energy in the interfering signal, repeating
the step of detecting and the step of incrementally tuning until the
energy in the interfering signal is minimized, and storing a new tune
value as the initial tune value. The notch filter is configured to filter
the radio signal. The new tune value indicates a minimized energy in the
interfering signal.