What is an advantage of having a variety of receiver IF bandwidths from which to select?

  1. The noise figure of the RF amplifier can be adjusted to match the modulation type, thus increasing receiver sensitivity
  2. Receiver power consumption can be reduced when wider bandwidth is not required
  3. Receive bandwidth can be set to match the modulation bandwidth, maximizing signal-to-noise ratio and minimizing interference
  4. Multiple frequencies can be received simultaneously if desired