[RadioHamGuy] posted an interesting video on adding a counterpoise antenna wire to an HT. He claims it will noticeably improve both transmit and receive by making a quarter-wave monopole into a ...

OK. So we have a signal that is sent to a radiosmitter's antenna. How does that signal get from the antenna to the air? Let's first take a look at the signal. The signal is an electic current ...

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 ...