EXTENSION COURSE OF THE US ARMY SIGNAL SCHOOL
LESSON SOLUTIONS
SIGNAL SUBCOURSE 333......................... Telephone System Characteristics
LESSON 3 ..................................... Echo Suppressors and Compandors
1. c--para 3-1a
2. d--para 3-1b
3. c--para 3-2
4. b--para 3-2b(1)
5. a--para 3-2b(1)
6. d--para 3-2b(3)
A hybrid coil circuit always introduces at least 4-db loss. A signal of
-2 dbm entering the 2-W side of the hybrid coil circuit will leave the send
line at a level approximately 4 db below -2 dbm, or -6 dbm.
7. b--para 3-2c
8. a--para 3-3a(3)
9. b--para 3-3b(1), (2)
10. c--para 3-3c
11. d--Appendix C, page C-2
12. c--Appendix C, page C-11
13. a--Appendix C, page C-12
14. c--Appendix C, page C-13
15. d--Appendix C, page C-13
16. c--Appendix C, page C-13
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