**Due: 4/17/14**

1. Given the frequencies listed below, calculate the corresponding periods.

a. 22Hz

b. 10 MHz

c. 150 KHz

2. Given the following periods, calculate the corresponding frequencies.

a. 6 s

b. 20 us

c. 200 ns

3. A signal has a wavelength of 1 um in air. How far can the front of the wave travel during 2000 periods?

** **

4. What is the theoretical capacity of a channel in each of the following cases:

a. Bandwidth: 25 KHz SNRdB =40

b. Bandwidth: 300 KHz SNRdB =4

c. Bandwidth: 6 MHz SNRdB =20

5. In a digital transmission, the sender clock is 0.5 percent faster than the receiver clock.

How many extra bits per second does the sender send if the data rate is 1 Mbps?

21. Find the 8-bit data stream for each case depicted in Figure 4.36.

Subject | Computer |

Due By (Pacific Time) | 04/22/2014 02:00 pm |

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