Standing waves are one of those topics that lots of people have a working knowledge of, but few seem to really grasp. A Ham radio operator will tell you all about the standing wave ratio (SWR ...

Keywords electromagnetic waves, radar, microwaves, crystal set, radio, television, diffraction, interference, transmitter, receiver, navigation Email us at [email protected] if you have ...

Back to our radio signal. The electrons in our wire are moving, but not in one direction. These electrons are moving back and forth. Actually, the wave displayed in the activity is a ...