LESSON 1
SOLUTION SHEET
All references are to the Attached Memorandum, unless otherwise indicated.
1.
a--para 1-la
2.
c--para 1-2a
3.
c--para 1-1c(2)
4.
b--para 1-2c(4); IB 3321, figure 4
5.
a--para 1-2c(4)
6.
b--para 1-1c(4)
S+N = -4 dBm
N = +46 dBrn = -90 + 46 = -44 dBm
S+N/N = the difference between -4 and -44 dBm
= 40 dB.
7.
a--para 1-3c(4)
8.
d--para 1-3b
The 700-Hz test tone is transmitted at a level (-10 dBm0) that is 10
dB below the normal signal level at the TLP (-12 dBm).
-12 dBm -10 dB = -22 dBm.
9.
d--para 1-3c(3); Appendix A, figure 17
All concerned will be careful that neither this solution nor
information concerning it comes into the possession of students or
prospective students who have not completed the work to which it pertains.
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