Digital audio broadcast receiver

A digital audio broadcast (DAB) receiver ( 10 ) for receiving an RF signal comprises a low noise amplifier ( 16 ), an RF mixer ( 24 ) that generates an intermediate frequency signal, and a voltage controlled oscillator ( 23 ). The receiver includes a tracking filter ( 18 ) downstream of the low noise amplifier ( 16 ) and upstream of the RF mixer ( 24 ), wherein the tracking filter is tuned to track a selected channel frequency out of the received RF signal. In a described embodiment, the tracking filter includes a bandpass filter ( 20 ) and a notch filter ( 22 ). A center frequency of the bandpass filter is tuned to track the selected channel frequency; and an attenuation notch of the notch filter is tuned to track a frequency which is separated from the selected channel frequency by a fixed frequency; the attenuation notch of the notch filter is tuned together with the center frequency of the bandpass filter, and the center frequencies of the notch filter and the bandpass filter are separated by a fixed frequency. The tracking filter is tuned by a digital word developed by a digital signal processor responsive to the intermediate frequency signal.