00:02
So in this problem, to determine intermediate frequency i .e.
00:14
If, then necessary to pass the frequency modulation signal, in the super -f2 -dine receiver, we have been given carrying frequency as 880 mhz.
00:33
The modulation frequency or frequency of modulation is 100 khz.
00:41
The peak deviation is given as 500 hz.
00:47
And the intermediate frequency is 5 mhz.
00:53
So we have to calculate first the modulation index.
00:56
First, the modulation index β of the fm signal.
01:07
And we know that β is equal to δf divided by fm.
01:14
So the modulation index comes out to be 500 khz divided by 100 khz.
01:24
This is 500 khz.
01:26
So β comes out to be 5.
01:29
And β is our modulation index.
01:33
Now in the second step, we will calculate the maximum frequency deviation caused by the modulation...