Exemplary aspects are directed to FM-radio circuitries and systems in which, at the receiving end of an FM broadcast transmission, circuitry is used to set the bandwidth for receiving the desired channel of the FM broadcast signal based on measured signal properties of immediately-adjacent channel(s) and based on an inverse relationship between an indication of FM modulation level of the other channel(s) and the amount for which the bandwidth is to be set. FM-signal processing circuitry such as logic/CPU circuitry, then receives the desired channel, including information carried by the FM broadcast signal, in response to setting the bandwidth based on the measured signal properties.