Radio

BASIC ELECTRONICS
Table of Contents
Free Java Script Catalog (Calculators and Games) New site for engineering students: Electronics Circuit Principles and Design
Download our Free e-Book: Electronic Concepts released Oct. 2006
Read "The Energy Matrix" eZine and learn about alternative energy.

Select chapter from Table of Contents or select another site or e-book.

Basic
Electronics
Contents
S = Sound

Cover

TOC(Table of Contents)
Chapt.1
Chapt.2
Chapt.3 S
Chapt.4 S
Chapt.5
Chapt.6A Chapt.6B
Chapt.7 S
Chapt.8
Chapt.9 S
Chapt.10
Chapt.11 S
Chapt.12 S
Chapt.13 S
Chapt. 14 S
Chapt. 15 S
Chapt. 16
Chapt. 17
Chapt. 18

Meter Math
Troubleshooting
Principles

Directory of Select Electronic Sites

Military Electronics
Sound Ranging
Weapons

Electrical Energy
Cogeneration
HVDC

Attention Teachers!

Site Map

Chapter 10
Radio

AM Receivers and RF spectrum

"The term Radio Frequency (RF or rf) refers to the electromagnetic field that is generated when an alternating current is input to an antenna. This field, also called an RF field or radio wave, can be used for wireless broadcasting and communications over a significant portion of the electromagnetic radiation spectrum -- from about 9 kilohertz (kHz) to thousands of gigahertz (GHz). This portion is referred to as the RF Spectrum. As the frequency is increased beyond the RF spectrum, electromagnetic energy takes the form of infrared (IR), visible light, ultraviolet (UV), X rays, and gamma rays." from Spread Spectrum Scene

Antennas, Decibels, and Space flight Telecommunications

"The antenna is the most visible part of the satellite communication system. The antenna transmits and receives the modulated carrier signal at the radio frequency (RF) portion of the electromagnetic spectrum. For satellite communication, the frequencies range from about 0.3 GHz (VHF) to 30 GHz (Ka-band) and beyond. These frequencies represent microwaves, with wavelengths on the order of one meter down to below one centimeter. High frequencies, and the corresponding small wavelengths, permit the use of antennas having practical dimensions for commercial use. This article summarizes the basic properties of antennas used in satellite communication and derives several fundamental relations used in antenna design and RF link analysis." from Antennas:The Interface with Space

"Upon completion ... you will be aware of the major factors involved in communicating across interplanetary distances, including uplink, downlink, coherence, modulation, coding, and multiplexing." from Basics of Space Flight Telecommunications

Technology
Animated

Download our Free e-Books
Electronic Concepts
The best way to learn electronics and system troubleshooting
&
Force Fields
A Physics E&M Primer for Electronic Students

Pilot a spaceship. Visit Motion in Space.

Land a spaceship on spacestation with a small gravitational Field.
Soft Landing Game

Free
Talking eBook
Subject is History of Guns.
Click Here

Soundtrack for chapters 1 -7 & 9
Click Here

Soundtrack for chapter 14
Click Here

Heat Engine Thermodynamics
Simulation.

Redshift 4