Why FM radio is better than AM?

In AM, a radio wave known as the "carrier" or "carrier wave" is modulated in amplitude by the signal that is to be transmitted. ... FM is less prone to interference than AM. However, FM signals are impacted by physical barriers. FM has better sound quality due to higher bandwidth. read more

Wideband FM was invented to specifically overcome the interference disadvantage of AM radio. A distinct advantage that FM has over AM is that FM radio has better sound quality than AM radio. The disadvantage of FM signal is that it is more local and cannot be transmitted over long distance. read more

The main difference is FM barely receives interference as the stronger signal covers all weaker, whereas AM receives everything at once, your station plus static and other distant stations. FM works at a consistent volume as the peaks in FM modulations are horizontal, ie frequency, whereas AM naturally peaks upwards, so any variations in sound will also peak the volume at high notes. read more

Actually, AM is better than FM. AM can cover the world, and is the best form of communication. FM is completely worthless except for the fact that it's better sounding. read more