What is the normal bandwidth of an FM radio station?

FM Broadcast Radio

Why FM has a wider bandwidth than am?

FM radio, always remains at constant amplitude, so signal strength does not change. FM uses a higher frequency range and a bigger bandwidth than AM. This means that an FM station can transmit 15 times as much information as an AM station and explains why music sounds so much better on FM.

Does FM require less bandwidth?

The frequency and phase remain the same. In FM, a radio wave known as the “carrier” or “carrier wave” is modulated in frequency by the signal that is to be transmitted. The amplitude and phase remain the same. It has a lower bandwidth so it can have more stations available in any frequency range.

What is the bandwidth of a broadcast FM signal?

fm = modulating frequency. To take the example of a typical broadcast FM signal that has a deviation of ±75kHz and a maximum modulation frequency of 15 kHz, the bandwidth of 98\% of the power approximates to 2 (75 + 15) = 180kHz.

Why do AM receivers have such low bandwidth?

Instead, in response to customer complaints about AM interference, the receiver manufacturers continued to reduce the audio bandwidth of AM receivers to eliminate the “chatter” caused by the sidebands of adjacent channels. The result is that an “above average” receiver today has audio response that is less than 4.5 kHz.

What is the difference between frequency modulated signals and FM sidebands?

The situation for frequency modulated signals is rather different. The FM sidebands are dependent on both the level of deviation and the frequency of the modulation.

How many sidebands are there in a radio signal?

For small values of modulation index, when using narrow-band FM, NBFM, radio communication systems, the signal consists of the carrier and the two sidebands spaced at the modulation frequency either side of the carrier. The sidebands further out are minimal and can be ignored.