What multipath propagation is and how it affects a radio system?

Multipath propagation occurs when a radio signal reflects off surfaces such as buildings, trees, or the ground, creating multiple signal paths that reach the receiver at different times. This phenomenon can lead to constructive or destructive interference, causing fluctuations in signal strength and quality. In radio systems, multipath propagation can result in fading, reduced data rates, and increased error rates, particularly in urban environments. Mitigation techniques like diversity reception and equalization are often employed to counteract its effects.