T4B08

What is the advantage of having a choice of receiver filter bandwidths in a multimode transceiver?

1. APermits monitoring several modes simultaneously by selecting a separate filter for each mode
2. BPermits noise or interference reduction by selecting a bandwidth matching the mode
3. CIncreases the number of frequencies that can be stored in memory
4. DIncreases the amount of offset between receive and transmit frequencies

Pick an answer to check it.