What are the amplitude modulation application?

Answer 1

Amplitude modulation is one way to carry information on a carrier, such as a

radio signal. Another way is FM (Frequency Modulation). While FM offers greater

clarity for audio, and the higher frequencies that FM use offer a wider

bandwidth, allowing for more information to be transmitted, one application

where FM and digital are not suitable are Aviation communication, which to this

day still use AM analogue. This is because weaker signals can be heard over

stronger, closer ones with AM, allowing for emergency transmissions to have

more chance of being heard over other traffic. Also, AM uses a narrower

bandwidth than FM, allowing more users in a smaller space. This is important for

the lower frequencies of Radio, where space is at a premium (ie shortwave

bands).