What effect does multi-path propagation have on data transmissions?

Multi-path propagation refers to the phenomenon where signals take multiple paths to reach the receiver due to reflections, diffractions, or scattering caused by obstacles in the environment. This can lead to multiple versions of the same signal arriving at slightly different times.

In this context, error rates are likely to increase. When different versions of a signal reach the receiver, they can interfere with one another, a situation known as constructive and destructive interference. This results in a distortion of the original signal, making it more challenging for the receiver to correctly interpret the transmitted data. As a result, the overall reliability of the transmission decreases, leading to a higher likelihood of errors.

While some advanced techniques like equalization or diversity can help mitigate these issues, the fundamental nature of multi-path propagation inherently makes error rates more problematic for data transmissions. Other options regarding transmission rates or using FM signals do not appropriately capture the significant impact that multi-path propagation has on the integrity of the received signal.