Telecom Networks (Transmission) Problems

Professor Barry Evans - Teaching

Answers to Questions

1  	(i)	24 dB
	(ii) 	-57 dBm/1000pWp
	(iii) 	-29 dBm
	(iv) 	28 dB, or weighted 30.5 dB

2	(i)	3 dB
	(ii) 	-10 dBr
	(iii) 	250 pW0p
	(iv) 	-25dBm

3 	77.6 dB / 67.6dB

4	10-4

5	(a)  	8, 12.5 dB
	(b) 	14 dB

6	9

7	4.35 dB

8 	(i)  	17 dB (8 dB)
	(ii)  	71%
 
9 	26 dB
 
10 	6
 
11 	30 Kb/s
 
12 	(d)  	63%
 
13 	(i)  	128 Kb/s
	(ii) 	64 KSy/s
	(iii) 	92 KHz
	(iv) 	m = 6,64 QAM

14	(i)	46.3Km dispersion limit
	(ii) 	210 Mb/s

15	5 Km

Answers in PDF format