The History of Radio and Television (Part 1)
... • In the United States, government may fund electronic-media experiments, but it’s up to business to apply the results. • The key to telecommunications is that electromagnetic energy can be transmitted between two points. • The early stage of media development is a process to which many people contr ...
... • In the United States, government may fund electronic-media experiments, but it’s up to business to apply the results. • The key to telecommunications is that electromagnetic energy can be transmitted between two points. • The early stage of media development is a process to which many people contr ...
The Fundamentals of Ham Radio and Emergency Communications
... This caused a problem as more people started to use radio technologies especially in the cities where several radio operators could live within a few blocks from each other. the radios created lots of radio frequency (RF) interference, and the receivers would pick up anything. To fix the problems, c ...
... This caused a problem as more people started to use radio technologies especially in the cities where several radio operators could live within a few blocks from each other. the radios created lots of radio frequency (RF) interference, and the receivers would pick up anything. To fix the problems, c ...
