system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does AM radio sound different than FM radio?
gpt
AM waves are long, thick, and don't transmit much data. This allows them to travel long, long distances without too much loss of quality, making them ideal for emergency broadcasts.

FM waves are shorter and contain much more data, making them ideal for commercial radio. They don't travel nearly as far (because there is more data to lose).