Question

Which of the following is not an advantage of spread spectrum channel sounding system?

(a) Rejection of passband noise

(b) Real time

(c) Coverage range improvement

(d) Less transmitter power required

This question was posed to me in an international level competition.

I would like to ask this question from Small- Scale Multipath Measurements in division Mobile Radio Propagation: Small – Scale Fading and Multipath of Wireless/Mobile

Answer 1

The correct choice is (b) Real time

The explanation: One of the main advantage of spread spectrum channel sounding system is ability to reject passsband noise. Thus, it improves the coverage range for a given transmitter power. Also, required transmitter powers can be considerably lower compared to direct pulse systems due to inherent processing gain.