Narrow band and Wide band FM

Determine the bandwidth of the FM signal if the frequency of the modulating sinusoid is 500Hz and peak frequency deviation is 50 KHz.

• 101 KHz

• 120 KHz

• 1 MHz

Determine the bandwidth of the FM signal if the frequency of the modulating sinusoid is 10 KHz and peak frequency deviation is 50 KHz.

• 120 KHz

• 1 MHz

• 101 KHz

Determine the bandwidth of the FM signal if the frequency of the modulating sinusoid is 500 KHz and peak frequency deviation is 50 KHz.

• 1 MHz

• 101 KHz

• 120 KHz

Condition for Wide band FM

• Beta > 1

• Beta <= 1

• Beta <=0.3

For narrow band FM, Bandwidth =

• 2fm

• 2(f+fm)

• 2(fc+fm)