US Army electronics course - Fundamentals of Microwave Communications SS0345.pdf

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SUBCOURSE
SS0345
EDITION
6
FUNDAMENTALS OF
MICROWAVE COMMUNICATIONS
U.S. ARMY SIGNAL SCHOOL
GENERAL PURPOSE USER (GPU) SKILL LEVELS 1, 2, 3, 4, AND 5 COURSES
FUNDAMENTALS OF MICROWAVE COMMUNICATIONS
SUBCOURSE NO. SS0345-6
U.S. Army Signal School
Fort Gordon, Georgia
2 CREDIT HOURS
GENERAL
The Fundamentals of Microwave Communications subcourse is designed to provide you with the
knowledge necessary for performing tasks related to providing line-of-site radio transmission path, and
profiling tropospheric scatter radio transmission path. The subcourse is presented in three lessons, each
lesson corresponding to a terminal objective as indicated below:
Whenever pronouns or other references denoting gender appear in this document, they are written to
refer to either male or female unless otherwise indicated.
i
Lesson 1: FUNDAMENTALS OF RADIO COMMUNICATIONS
TASK: The soldier will be able to identify the elements of fundamentals of transmission and reception,
radio wave and methods of transmission.
CONDITIONS: Given information and diagrams about the elements of fundamentals of transmission,
reception, radio wave and methods of transmission.
STANDARDS: Demonstrate competency of the objective by responding to 85 percent of the multiple-
choice test covering the elements of fundamentals of transmission, reception, radio wave and methods
of transmission for lesson 1.
(This objective supports Task 113-611-4004, Profile Tropospheric Scatter Transmission Path.)
Lesson 2: PROPAGATION OF RADIO WAVES
TASK: The soldier will identify the principles of propagation on radio waves, microwave multichannel
systems and microwave multichannel radio antennas.
CONDITIONS: Given information and diagrams about the principles of propagation of radio waves,
microwave multichannel systems, and microwave multichannel radio antennas.
STANDARDS: Demonstrate competency of the objective by responding to 85 percent of the multiple-
choice test covering the principles of propagation of radio waves, microwave multichannel systems and
microwave multichannel radio antennas in lesson 2.
(This objective supports SM Task 113-611-4004, Profile Tropospheric Scatter Transmission Path.)
Lesson 3: SYSTEM ALIGNMENT
TASK: The soldier will identify the principles of system alignment, noise, interference and fading.
CONDITIONS: Given information and diagrams about the principles of system alignment, noise and
interference and fading.
STANDARDS: Demonstrate competency of the objective by responding to 85 percent of the multiple-
choice test covering the principles of system alignment, noise interference and fading in lesson 3.
(This objective supports SM Task 113-611-4004, Profile Tropospheric Scatter Transmission Path.)
ii
TABLE OF CONTENTS
Section
TITLE PAGE ..............................................................................................................................
TABLE OF CONTENTS ............................................................................................................
INTRODUCTION........................................................................................................................
Lesson 1: FUNDAMENTAL OF RADIO COMMUNICATIONS .............................................
Learning Event 1: Elements of Transmission and
Reception..........................................................................................................................
Learning Event 2: Radio Waves.......................................................................................
Learning Event 3: Methods of Transmission ..................................................................
Practice Exercise...............................................................................................................
Lesson 2: PROPAGATION OF RADIO WAVES ......................................................................
Learning Event 1: Propagation of Radio Waves .............................................................
Learning Event 2: Microwave Multichannel Radio
Systems.............................................................................................................................
Learning Event 3: Microwave Multichannel
Radio Antennas................................................................................................................
Practice Exercise ..............................................................................................................
Lesson 3: SYSTEM ALIGNMENT ............................................................................................
Learning Event 1: Control of Alignment ........................................................................
Learning Event 2: Noise and Interference ......................................................................
Learning Event 3: Fading ................................................................................................
Practice Exercise ..............................................................................................................
Page
i
iii
v
1
1
4
8
14
18
18
20
25
34
38
38
39
42
49
iii
Section
Answers to Practice Exercise (Solution Sheets) ...........................................................................
Final Examination .......................................................................................................................
Student Inquiry Sheet ..................................................................................................................
Page
53
55
62
iv

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