Electrical and Electromagnetic Technical information

 

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Antenna Patents - pictures and descriptions

ATSC VSB Transmission  VSB Transmission the Right choice for U.S. DTV stations. Report from the Advanced Television Systems Committee (ATSC)  2 pages   dated 1999  (25.2kb PDF file)

Battery information   This manual completely with different kinds of batteries. 

COFDM modulation  This manual deals with the COFDM (Code Orthogonal Frequency Division Multiplexing) and how it relates with Digital Video Broadcasting (DVB) systems. DVB-S, DVB-C & DVB-T systems.   Then a mathematical / Technical description of COFDM is given.  33 pages   dated 2003  (2.44Mb PDF file)

Digital TV Broadcast Handbook  This is an excellent technical publication on the workings of DTV 8VSB systems. Almost all technical issues are addressed.  28 pages  dated 2004  (903kb PDF file)

Digital Modulation Principles

DTV FCC report  COFDM vs 8-VSB Performance for DTV   27 pages  dated 1999 (99kb PDF file)

Grounding, Bonding and Shielding for Electronic Equipment and Facilities  Navy Electronics manual (MIL-HDBK-419A) (9.8Mb) 812 pages

Grounding and EMI protection manual STANDARD PRACTICE FOR SHIPBOARD BONDING, GROUNDING, AND OTHER TECHNIQUES FOR ELECTROMAGNETIC COMPATIBILITY AND SAFETY

NTIA Manual  Manual of Regulations and procedures for Federal Radio Frequency Management  846 pages  dated 2003 (45mb PDF file)

OFDM modulation introduction This manual gives an overview of a multiple carrier modulation technique know as OFDM (Orthogonal Frequency Division Multiplex). If focuses on problems that are specific for its use in the future mobile multimedia communications (MMC) in the range of 60Ghz.  18pages dated 1998  (340kb PDF file)

The Art & Skill of Radio-Telegraphy  This publication addresses the history of Radio Telegraphy from its birth to present day.  241 pages  dated 2002 by N0HFF   3rd edition (1.78kb PDF file)

Tutorials in Communications Engineering

 

Tutorial 1 - Basic concepts in signal analysis, power, energy and spectrum

Tutorial 2 - What is Differential Phase Shift Keying

Tutorial 3 - What is the DVB-S standard, a simplified version

Tutorial 4 - Fourier Analysis Made easy - Part 1

Tutorial 5 - Fourier Analysis Made easy - Part 2

Tutorial 6 - Fourier Analysis Made Easy - Part 3

Tutorial 7 - Hilbert Transform and the Complex Envelope

Tutorial 8 - All About Modulation - Part 1 Basic consepts, Signal space, Constellations and Phase Shift Keying Modulations (PSK, QPSK, OQPSK, M-PSK, MSK GMSK, ASK, FSK and PSK) 38 pages   dated 2002  (436kb PDF file)

Tutorial 8 - All about Modulation - Part 2   24 pages   dated 2002  (334kb PDF file)

Tutorial 9 - Baseband, Passband and Amplitude Modulation (AM)

Tutorial 10 - All about Traveling Wave Tube Amplifiers (TWTA) and non-linear amplification

Tutorial 11 - Link Budgets 101 (BER Signal Quality Mathematics  Bit Error Rate formulas of a signal)

Tutorial 12 - Convolutional Coding and Decoding Made Easy (Error correction FEC etc)

Tutorial 13 - Coding Concepts and Block Coding

Tutorial 14 - Inter Symbol Interference (ISI) and Raised cosine filtering (interference issues)

Tutorial 15 - How to interpret an Eye diagram

Tutorial 16 - Partial Response signaling and Quadrature Partial Response (QPR) modulation

Tutorial 17 - Frequency Modulation (FM) , FSK, MSK and more

Tutorial 18 - Unlocking the Phase Locked Loop (PLL) - Part 1

Tutorial 19 - Unlocking the Phase Locked Loop (PLL) - Part 2

Tutorial 20 - Modulation performance metrics and computation of BER

Tutorial 21 - Linear Time Invariant systems and Matched filtering

Tutorial 22 - Orthogonal Frequency Division Multiplex (OFDM, DMT)

Tutorial 23 - Trellis coded Modulation (TCM) (in work)

 

 

NEETS

NAVY ELECTRICITY AND ELECTRONICS TRAINING SERIES

The Navy Electricity and Electronics Training Series (NEETS) was developed for use by personnel in

many electrical- and electronic-related Navy ratings. Written by, and with the advice of, senior

technicians in these ratings, this series provides beginners with fundamental electrical and electronic

concepts through self-study. The presentation of this series is not oriented to any specific rating structure,

but is divided into modules containing related information organized into traditional paths of instruction.

The series is designed to give small amounts of information that can be easily digested before advancing

further into the more complex material. For a student just becoming acquainted with electricity or

electronics, it is highly recommended that the modules be studied in their suggested sequence. While

there is a listing of NEETS by module title, the following brief descriptions give a quick overview of how

the individual modules flow together.

 

 

 

Module 1, Introduction to Matter, Energy and Direct Current, introduces the course with a short history

of electricity and electronics and proceeds into the characteristics of matter, energy, and direct current

(dc). It also describes some of the general safety precautions and first-aid procedures that should be

common knowledge for a person working in the field of electricity. Related safety hints are located

throughout the rest of the series, as well.

 

Module 2, Introduction to Alternating Currrent and Transformers, is an introduction to alternating current

(ac) and transformers, including basic ac theory and fundamentals of electromagnetism, inductance,

capacitance, impedance, and transformers.

 

 

Module 3, Introduction to Circuit Protection, Control, and Measurement, encompasses circuit breakers,

fuses, and current limiters used in circuit protection, as well as the theory and use of meters as electrical

measuring devices.

 

Module 4, Introduction to Electrical Conductors, Wiring Techniques, and Schematic Reading, presents

conductor usage, insulation used as wire covering, splicing, termination of wiring, soldering, and reading

electrical wiring diagrams.

 

 

Module 5, Introduction to Generators and Motors, is an introduction to generators and motors, and

covers the uses of ac and dc generators and motors in the conversion of electrical and mechanical

energies.

 

 

Module 6, Introduction to Electrical Emission, Tubes, and Power Supplies, ties the first five modules

together in an introduction to vacuum tubes and vacuum-tube power supplies.

 

 

Module 7, Introduction to Solid-State Devices and Power Supplies, is similar to module 6, but it is in

reference to solid-state devices.

 

 

Module 8, Introduction to Amplifiers, covers amplifiers

 

 

Module 9, Introduction to Wave-Generation and Wave-Shaping Circuits, discusses wave generation and

wave-shaping circuits.

 

Module 10, Introduction to Wave Propagation, Transmission Lines, and Antennas, presents the

characteristics of wave propagation, transmission lines, and antennas.

 

 

Module 11, Microwave Principles, explains microwave oscillators, amplifiers, and wave guides.

 

 

Module 12, Modulation Principles, discusses the principles of modulation.

 

 

Module 13, Introduction to Number Systems and Logic Circuits, presents the fundamental concepts of

number systems, Boolean algebra, and logic circuits, all of which pertain to digital computers.

 

 

Module 14, Introduction to microelectronics, covers microelectronics technology and miniature and

micro miniature circuit repair.

 

 

Module 15, Principles of Synchros, Servos, and Gyros, provides the basic principles, operations,

functions, and applications of synchro, servo, and gyro mechanisms.

 

 

Module 16, Introduction to Test Equipment, is an introduction to some of the more commonly used test

equipments and their applications.

 

 

Module 17, Radio-Frequency Communications Principles, presents the fundamentals of a radio frequency

communications system.

 

 

Module 18, Radar Principles, covers the fundamentals of a radar system.

 

 

Module 19, The Technician's Handbook, is a handy reference of commonly used general information,

such as electrical and electronic formulas, color coding, and naval supply system data.

 

 

Module 20, Master Glossary, is the glossary of terms for the series.

 

 

Module 21, Test Methods and Practices, describes basic test methods and practices.

 

 

Module 22, Introduction to Digital Computers, is an introduction to digital computers.

 

 

Module 23, Magnetic Recording, is an introduction to the use and maintenance of magnetic recorders and

the concepts of recording on magnetic tape and disks.

 

 

Module 24, Introduction to Fiber Optics, is an introduction to fiber optics.

 

 

U.S. Navy Math Series   BASIC MATH

 

 

This is an excellent Math series starting out with very simple math and

continuing through Stats, Boolean Algebra with a smattering of Calculus.

 

 

Math Vol 1- Basic Math and Algebra - (13.9 MB)

 

Math Vol 2 - Trigonometry (8.4 MB)

 

Math Vol 3 - Pre-Calculus and Introduction to Probability - (10.4 MB)

 

Math Vol 4 - Introduction to Statistics, Number Systems and Boolean Algebra - (6.6 MB)

 

 

DOE FUNDAMENTALS SERIES

 

This is an excellent series Covering many topics concerning Nuclear Power,

including Physics, Chemistry, Electricity, Math, Instrumentation and Nuclear Reactors.

 

CLICK HERE FOR THE LINK TO DOE FUNDAMENTALS SERIES