IT 11-180-8*
MEANS OF COMMUNICATIONS
CONTENTS
Page
Objectives ...........................................................................................................................................
ii
Introduction .........................................................................................................................................
ii
Programmed Instruction.......................................................................................................................
1
Terms defined and means categorized (frames 1 thru 8).................................................................
1
Messenger (frames 9 thru 14) ........................................................................................................
3
Sound signals (frames 15 thru 18)..................................................................................................
5
Visual signals (frames 19 thru 27) .................................................................................................
6
Electrical/electronic means identified in terms of input/output
devices using radio or wire circuits (frames 28 thru 35) ...........................................................
8
Wire communication (frames 36 thru 40).......................................................................................
11
Radio communication (frames 41 thru 49) .....................................................................................
12
Self-Test ..............................................................................................................................................
16
Answers to the Self-Test ......................................................................................................................
18
*This instructional text supersedes ST 11-180-8
i
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