Noun
A frequency band refers to an interval in the radio spectrum denoted by a lower and upper limit. For example, the AWS-1 band consists of 90 MHz in the AWS spectrum ranging from 1710–1755 MHz and 2110–2155 MHz.
The radio spectrum exists in the lower ranges of the electromagnetic spectrum. It’s the medium on which both analog and digital wireless communications systems are based. These include everything from radio to mobile networks and satellite systems.
Below is a table showing the fundamental frequency band designations across the electromagnetic spectrum as classified by the International Telecommunications Union (ITU):
| Designation | Frequency | Wavelength |
|---|---|---|
| Very Low Frequency (VLF) | 3 kHz–30 kHz | 100 km–10 km |
| Low Frequency (LF) | 30 kHz–300 kHz | 10 km–1 km |
| Medium Frequency (MF) | 300 kHz–3 MHz | 1 km–100 m |
| High Frequency (HF) | 3 MHz–30 MHz | 100 m–10 m |
| Very High Frequency (VHF) | 30 MHz–300 MHz | 10 m–1 m |
| Ultra High Frequency (UHF) | 300 MHz–3 GHz | 1 m–100 mm |
| Super High Frequency (SHF) | 3 GHz–30 GHz | 100 mm–10 mm |
| Extremely High Frequency (EHF) | 30 GHz–300 GHz | 10 mm–1 mm |
Cellular frequency bands exist in the spectrum interval between 3 kHz and 300 GHz. But in general, the Ultra High-Frequency band (UHF) is the most significant frequency band to modern wireless communication systems.
The UHF frequency band is used in Wi-Fi networks, satellite TV, GPS, and mobile communication systems like GSM, CDMA, and LTE.
Example of Frequency Band in a sentence
"Frequency bands beyond 3 GHz are more prone to interference which necessitates a line of sight requirement."
Synonyms: radio band
Related Terms for Frequency Band
See Also: How to Boost Cell Phone Signal and Improve Reception