Welcome to RADIO WAVE PROPAGATION AND ANTENNAS Subcourse IS1143 Edition 7 Edition Date: December 1986 United States Army Infantry School Fort Gordon, Georgia

Introduction
Overview	This is an overview of Radio Wave Propagation And Antennas, IS1143
Proponent	This subcourse is issued by the-- U.S. Army Institute for Professional Development (AIPD) U.S. Army Training Support Center Newport News, Virginia  23628-0001
Purpose	The Wave Propagation and Antennas Subcourse is designed to teach the knowledge necessary to identify characteristics of wave propagation and calculating antenna lengths. Additional information is contained concerning types of antennas, and frequency selection procedures for short and long distance radio circuits.
Target Audience	Any eligible person may enroll in the subcourse.
Requirements	To receive credit for course or subcourse completion, you must-- Have an Army Correspondence Course Program (ACCP) USER-ID and PASSWORD. Be formally enrolled in this course/subcourse through the ACCP. Earn a passing score on the subcourse examination.
Contents	The subcourse contains the following parts:
	INTRODUCTION Lesson 1 - IDENTIFY CHARACTERISTICS OF WAVE PROPAGATION   Learning Event 1 - Ground Waves     Practice Exercise: Learning Event 1.   Learning Event 2 - Skywaves     Practice Exercise: Learning Event 2.   COMPREHENSIVE PRACTICE EXERCISE LESSON 1 Lesson 2 - CALCULATE ANTENNA LENGTH   Learning Event 1 - Characteristics of Antennas     Practice Exercise: Learning Event 1   Learning Event 2 - Common Antennas     Practice Exercise: Learning Event 2   Learning Event 3 - Siting     Practice Exercise: Learning Event 3   Learning Event 4 - Frequency Selection     Practice Exercise: Learning Event 4   COMPREHENSIVE PRACTICE EXERCISE LESSON 2
	Examination
Informal Access	Feel free to preview the subcourse to see if it meets your needs, to study it without committing to formal enrollment, or use it as an on-line desk reference.
Enrollment

Enrollment Eligibility	The Army Correspondence Course Program subcourses are available to U.S. Active and Reserve military officers, warrant officers, and enlisted personnel; Reserve Officers' Training Corps, National Guard Officer Candidate School, West Point cadets, and authorized federal civilian employees. Military personnel must have enough time remaining in service to complete the course/subcourse(s) in which they request enrollment. Note:  For detailed eligibility requirements see the course listing found on the AIPD LOGON/REGISTER web site.
Enrollment Notes	Enrollment is electronic. To enroll, click on the ENROLL button below to take you to the ACCP LOGON screen. [NOTE: The following instructions apply to the ACCP web site.] If you are not already registered with the ACCP, you will need to do so prior to enrolling for this subcourse. Click on the REGISTER button and follow the on-screen instructions. [NOTE: You will be required to create your own USER-ID and PASSWORD. These will allow you to enroll for courses/subcourses, access and update portions of your current personal demographic information, view history records, and take on-line examinations for subcourses in which you are enrolled.] If you are a registered ACCP participant, enter your USER-ID and PASSWORD in the spaces provided and click on the LOGON button. Follow on-screen instruction for enrolling in a course/subcourse. When filling in the subcourse number, enter it exactly as follows:  IS1143 . After submitting your application, you will receive verification of your enrollment by e-mail, if available, or first class mail. [NOTE: US military students who do not have an e-mail address can obtain one by going to http://www.us.army.mil.] IMPORTANT:  You will not be able to access the examination for this subcourse until you have received notification that your enrollment application has been accepted. Until that time, you may informally access the subcourse materials and begin your studies. To do so, follow the link to the RDL, scroll down the list of courses/subcourses, and activate the link to this course/subcourse.
Taking the Subcourse On-Line
Taking the subcourse	You do not have to wait for enrollment verification before beginning. You can start immediately. Everything you need to complete the subcourse is provided on-line. You will need no additional materials, nor will any be sent to you. View and study all materials (including practical exercises), and take the final examination. REMINDER:  You must have received ACCP subcourse enrollment verification by e-mail before taking the examination.
Taking the exam	REMINDER:  You must have received ACCP subcourse enrollment verification by e-mail before taking the examination. Read the examination administrative instructions very carefully prior to beginning the examination. Once you complete the examination and "submit" your responses, you will receive immediate feedback of your score. If you obtained a passing score, you will also receive subcourse text references for missed questions. Your final official grade (Completion Notice) will be provided by e-mail, if available, or first class mail. If you did not obtain a passing score, you may retake the examination after a time lapse of 24-hours from computer processing of your initial attempt.
Assistance
Points of Contact	If you have any questions about the subcourse, call or e-mail one of these points of contact: For questions about subcourse content, contact: Commander US Army Signal Center & Ft Gordon ATTN: ATZH-DTU Building 29803 (Moran Hall) Fort Gordon, GA 30905 For questions about subcourse administration, contact: Section A DSN: 826-2127/3322 COM: (757) 878-2127/3322 E-MAIL: sectiona@atsc.army.mil

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