Question

Propagation loss is more in ____

(a) lower carrier frequencies

(b) higher carrier frequencies

(c) lower bandwidth

(d) higher bandwidth

The question was posed to me in class test.

I'm obligated to ask this question of Environment Awareness topic in chapter Location and Environment Awareness in Cognitive Radio of Cognitive Radio

Answer 1

Right choice is (b) higher carrier frequencies

Explanation: At higher carrier frequencies, higher propagation loss, and lower range and penetration are observed. The influence of weather and attenuation is more at higher carrier frequencies when compared to lower carrier frequencies.