Author: Site Editor Publish Time: 23-03-2022 Origin: Site
Radio Frequency (RF) is two things.
1 First, it’s a type of electromagnetic radiation at a specific frequency range, also known as radio waves.
Radio is a type of electromagnetic radiation we use for communications.
We’re surrounded by electromagnetic radiation. It comes from many sources including the sun, stars, lightning and our bodies. Gamma rays, X-rays, microwaves, lasers and light are other types. They span an enormous range of wavelengths and frequencies.
A wavelength is the distance between two peaks of the wave.
The frequency is how many cycles form in one second, and it’s measured in Hertz (Hz).
We categorise these different frequencies and wavelengths in the electromagnetic spectrum.
The Electromagnetic spectrum: Each type comes from a different source & has different effects on matter
Radio Frequencies are the lowest energy electromagnetic radiation. They have a longer wavelength and therefore a lower frequency because each wave cycle takes longer to complete. The range of RF is around 20 kilohertz/kHz to around 300 gigahertz/GHz (30 billion hertz)2. But this isn’t exactly what we use in RF anti-aging skin tightening treatments.
#2 And second, Radio Frequency also describes the oscillating electrical currents used to generate radio waves. It works like this. Alternating currents of specific voltage sent through a conducting antenna vibrates electrons, generating radio waves. This is the transmitter. The radio waves travel at the speed of light from the transmitter to a receiver. Electrons in the receiver then vibrate, recreating the original signal.