Cognitive radios (CR) technology is capable of sensing its surrounding environment and adapting its internal states by making corresponding changes in certain operating parameters. CR is envisaged to solve the problems of the limited available spectrum and the inefficiency in the spectrum usage.

How does a radio-controlled car work? Author Ed Sobey guides readers as they take apart and rebuild their own radio-controlled car. In the process readers will also learn about radio waves, acceleration, towing capacity, battery voltage, and more! Many experiments include ideas you can use for your own science fair projects.

Readon TV Movie Radio Player allows you to listen to radio, watch TV broadcasts and access to the latest movies online. All you need is a Windows PC and an Internet connection. There is no need to purchase and install of the TV-PC, because the TV channels are streamed through your Internet connection. This is probably the best (and free) way for you to get access to Internet radio and TV broadcasts.

This book addresses propagation phenomena in satellite, radar, broadcasting, short range , trans-horizon and several recent modes of communications in radio links. Also, it includes some topics on antennas , radio noises and improvement techniques. The book provides the necessary basic matters, as well as experimental results and calculation procedures for radio link design.