Why is Frequency Modulation operated at such high frequencies when compared to its Amplitude Modulation counterpart?

Answer 1

Frequency modulation is better suited for high frequency apps for better quality of service longer range and penetration through solids and better control over TX or Transmit gain levels that can be hazardous at high power ANSWER 2 : I think its more about history . AM was used since the 1920's through WW2 , operating range was between 400khz to 50mhz . FM "Broadcast" Band came much much later although the idea of Frequency Modulation was old by then . If you were to modulate a typical 75khz FM signal (music) , it would take up the space of 6 AM stations on the old band . Operating up in the VHF frequency range meansMUCH smaller antennas and less power (although signals are more line of sight and would not travel as far as the AM stations , this is about frequency and not mode . FM has a much better signal to noise ratio so you will have better range on THE SAME FREQUENCIES with FM .