Radio frequencies are utilized in numerous devices that we use in every day life: Wi-Fi routers, Bluetooth devices, cell phones, radios, etc. These devices need a way of communicating and transferring information at rapid speeds and do so via radio frequency. Let’s take a look at what radio frequency is and how it is utilized in modern society.
Radio Frequency (RF) is a measurement of the oscillation rate of electromagnetic radio waves or the spectrum and can range from 300 GHz to as minimal as 9 kHz. Through the use of antennas and radio transmitters, a radio frequency field can be used for wireless broadcasting and communications. The longer the electromagnetic wavelength, the further devices can be apart and still function properly. Therefore, devices such as TV remotes and wireless keyboards/mouses operate at shorter wavelengths of sub-30 feet.
All devices that use RF technology will operate in the RF spectrum and that is divided into varying ranges or bands. Outside of the lowest frequencies, the individual bands represent an increase of frequency that correlates to the order of magnitudes. Here is a simple table laying out the band levels:
Within the United States, the radio frequencies are broken out into licensed and unlicensed bands. These frequencies are regulated by the Federal Communications Commission (FCC) and they issue licenses that allow commercial owners to use an exclusive frequency band. There are frequencies are considered unlicensed and can be used by the public. There is limited security on the transmissions due to the bands being a shared medium for all users.
Airwave Communication is a licensed dealer that help find the proper radio products, setup, and can even help with the FCC licensing for your business. Give our product experts a call to schedule a product demonstration and a walkthrough on getting started with your radio system.