1.

An FMtransmission has a frequencydeviationof 18.75 KHz. Calcualte presentpresent modulation ifit is broadcast in 88- 108 MHz band.

Answer»

`37.5%`
`12.5%`
`50%`
`25%`

SOLUTION :Carrirer Saving `= 2 xx Deltaf= 50 KHZ`
Perecnt modulation`m=Deltaf xx 100`
`= (18.75)/(75)xx100`
`=25%`
As maximum devation of 75 KHz is allowed forFM b


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