Methods and corresponding systems for receiving a radio frequency signal
include a receiver capable of switching operating modes and operable to
receive the radio frequency signal in any of the operating modes. A
metric monitor is coupled to the receiver and operable to provide a
metric. A controller is responsive to the metric and operable to switch
the receiver between the operating modes. The operating modes can include
a zero intermediate frequency (ZIF) mode and a very low intermediate
frequency (VLIF) mode. The metric can include a received signal strength
indicator (RSSI) and an adjacent channel indicator. The receiver can be
configured to operate in the ZIF mode in response to the RSSI value
satisfying a threshold and configured to operate in the VLIF mode in
response to the RSSI value failing to satisfy the threshold.