SIGNAL SUBCOURSE 320, COMMUNICATION FUNDAMENTALS
INTRODUCTION
"Don't give me excuses," shouted the commander, "Give me communications." Your job as a signalman is to
give the commander the communications he needs. However, it is not your job alone; two or more people
communicate. Communication is a team effort that is complete only when your customer tells you he no longer
needs the help you can give him. Your very reason for existence as a signalman is to provide communications to
those who need it.
An effective communicator is one who knows the characteristics and limitations of all ordinarily available
systems and equipment. Without this knowledge he is like a carpenter without a saw, a bricklayer without his
trowel. Knowledge, expertise, and willingness to learn are the ingredients of the successful signalman.
This subcourse provides the background you will need to be an effective communicator. The Army can only
provide this information to you; how you make the most of it is up to you. Properly used, this subcourse is the
opening wedge to your future in communications. Use it wisely.
This subcourse consists of four lessons and an examination, as follows:
Lesson 1. Elements of Communication
Lesson 2. Telephone and Telegraph Communication
Lesson 3. Carrier Communication
Lesson 4. Radio Communication
Credit Hours: 5
You are urged to finish this subcourse without delay; however, there is no specific limitation on the time you
may spend on any lesson or the examination.
Texts and materials furnished:
Subcourse Booklet
Special Text (IT) 11-180-8, Means of Communication (EXTRACTED)
You may keep the texts and materials furnished.
REVIEWED AND REPRINTED WITH MINOR REVISIONS FEB 76.
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