10 Examples of Radio Waves That Surround Us
Radio waves are a type of electromagnetic radiation with the longest wavelengths in the electromagnetic spectrum. They have frequencies ranging from 30 hertz (Hz) to 300 gigahertz (GHz). Radio wave examples include radio broadcasting, cellular networks, RADAR, radio astronomy, satellite communication, and medical applications.
Examples of Radio Waves
Here are 10 common examples of how we harness the power of radio waves.
1. Radio Broadcasting
Radio Broadcasting is one of the very common examples of radio waves in our daily lives. AM and FM radio programs are transmitted via radio towers broadcasting at certain frequencies. Radio entertains and informs listeners around the world.
We receive the TV signals through radio waves. TV signals are transmitted through radio wave frequencies to bring images and sounds to televisions. Broadcast towers emit these signals.
3. Wireless Networks
WiFi internet connections utilize radio wave frequencies to connect devices to networks without wires. This enables convenient portable connections.
Bluetooth is a very common example of radio waves. Bluetooth devices use short-wavelength radio waves to share data over short distances. It wirelessly connects headphones, speakers, and more.
5. Satellite Communications
Satellites in space transmit data and signals using radio frequencies to enable services like GPS, satellite TV, and satellite internet.
6. Remote Controls
Most remote controls for electronics use light or radio frequencies to send signals wirelessly. Garage door openers also use radio waves.
7. Microwave Ovens
Microwave ovens utilize concentrated radio waves to vibrate water molecules and heat foods. The radio waves cook from the inside out.
8. Radio Astronomy
Radio telescopes detect radio waves from space to study astronomical phenomena like pulsars, gravitational waves, and more.
9. Mobile Phones
Cell phones use radio frequencies to make calls, send texts, and access data. Cell towers facilitate the signals.
RADAR uses reflected radio waves to detect objects like planes and ships. It determines range, direction, speed, and more