What is the advantage of having a choice of receiver filter bandwidths in a multimode transceiver?
Permits monitoring several modes simultaneously by selecting a separate filter for each mode
Permits noise or interference reduction by selecting a bandwidth matching the mode✓Correct answer
Increases the number of frequencies that can be stored in memory
Increases the amount of offset between receive and transmit frequencies
Explanation
Noise and interference power entering the receiver rise with the width of the filter, while the wanted signal occupies only its own bandwidth. Choosing a filter that matches the mode therefore passes the full signal while rejecting everything outside it, improving the signal-to-noise ratio.