
AM and FM radio
AM (Amplitude Modulation) and FM (Frequency Modulation) are two methods for transmitting radio signals. AM works by changing the amplitude or strength of the radio wave to encode sound, making it more susceptible to static and interference. FM modifies the frequency or pitch of the wave to carry the sound, resulting in clearer audio less affected by interference. Both methods carry signals from radio stations to your receiver, but FM generally offers better sound quality, especially for music, while AM is more widely used for talk radio and news.