00:01
Hello students, to determine the number of the signal levels needed to send the 265 kbps over a noiseless channel with the bandwidth of the 20 kilohertz.
00:17
So we use and we use as the and nukist, nukist theorem formula, nukist theorem formula, where the formula is as the way the formula is as the as the formula as maximum maximum data rate data rate that is r is equal to 2 into the bandwidth into log of l to the base of 2 to the base of 2.
00:54
So where here r is the maximum data rate that is in a bps and the b is the bandwidth of the channel and l is the number of the signal levels.
01:05
So in this case, we want to find the 265 kbps over the channel with the bandwidth of the 20.
01:12
So as l is equal to 2 to the power of r by 2 into b into b.
01:21
So we are substituting the value over here 2 into the 265000 and 2 into as the bandwidth is 20, 20 kilohertz, so that is 20 ,000.
01:36
Then our total value will be as 2 to the power of as 13 .25.
01:44
Where we once we now we can calculate as 2 to the power of 35, 25...