What are some natural sources of radio waves?

Answer 1

We generally think of radio waves (radio electromagnetic radiation) as those frequencies of electromagnetic (EM) radiation that fall within a band of frequencies below those of light. These include microwave bands, on which satellites communicate and cell phone operate, as well as the familiar microwave oven. Radar also operates in this band. Below that we find television signals, as well as some two-way radio signals. Other forms of communications radio signals (like amateur or "ham" radio) as well as broadcast radio operate below the television bands.

By considering the types of equipment mentioned above, it is possible to make a list of some sources of radio electromagnetic radiation.

Answer 2

When an electric charge accelerates, electromagnetic radiation (a radio wave) is produced.

Radio transmitters produce a radio frequency alternating current fed into an antenna. This causes the electrons in the antenna to accelerate alternately in one direction and then the other. This produces the radio waves. Any wire will work as an antenna but for best efficiency, the wire is often half a wavelength long or a multiple of half wavelengths.

In nature, there are many sources of accelerating charge. In all cases, radio waves result. These include lightning strikes and the atmospheres of stars and planets.

Answer 3

The sun and other really crazy high energy objects in outer space.

Answer 4

radio waves are cased when YOU have ur phone in your pocket.

Answer 5

The source is the RF current in the transmitting antenna.

Answer 6

Radio waves.