EXTENSION COURSE OF THE US ARMY SIGNAL SCHOOL
SOLUTIONS
SIGNAL SUBCOURSE 320........................................... Communication Fundamentals
LESSON 4 ..................................................................... Radio Communication
All references are to the Attached Memorandum, unless otherwise indicated.
1. d--para 4-1c
2. a--para 4-1d
3. d--para 4-le
4. a--para 4-1f
5. c--para 4-2a
6. c--para 4-2b
7. c--para 4-2b(1)
8. b--para 4-2b(3)
9. a--para 4-2c(1)
10. b--para 4-2d(2)
In frequency-shift keying of a radio signal, the space is 850 Hz (0.850 kHz) from mark, in this case below it.
Therefore: 1,725.425 - 0.850 = 1,724.575 kHz.
11. b--para 4-2e(1)
12. c--para 4-3
13. d--para 4-3d
14. a--para 4-3d, example 1
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