Abstract: A method to receive channels in an undersampled broadband receiver is provided. The method includes converting received radio frequency signals to downshifted-sampled-digital signals at an analog-to-digital converter in a sampling system, outputting the downshifted-sampled-digital signals to a digital system for digital processing, and determining if the unique identifying code associated with a desired channel is detectable. Each channel in the radio frequency signal has an assigned unique identifying code. When the unique identifying code is detectable, the method includes detecting the unique identifying code associated with the desired channel. When the unique identifying code is undetectable, the method includes outputting control signals from the digital system to tune an adjustable sample clock in the sampling system and tuning the adjustable sample clock based on the output control signals.

Abstract: 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.