Radio Frequencies Exclusive

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Radio Frequencies Exclusive

Radio frequencies refer to the rate of oscillation of electromagnetic radio waves in the range of 3 kHz to 300 GHz. This band is used for communications transmission and broadcasting.  Different radio frequencies are useful for different wireless technologies. For example, some frequencies are used for radio broadcasting, and others are used for television broadcasting.

Radio waves are used in many different types of communication, which are defined in the electromagnetic spectrum. The electromagnetic spectrum contains all the frequencies of electromagnetic waves, including visible light waves, microwaves, and radio waves. The radio wave spectrum is included in the electromagnetic wave spectrum, having a frequency range between 3 kHz and 300 GHz.

The radio frequency spectrum is divided into radio frequency bands for many applications, including AM Radio, FM radio, television, cellular networks, Bluetooth, walkie-talkies, satellite communications, and military applications. All wireless devices operate in the radio frequency range of the electromagnetic spectrum.

The International Telecommunication Union – Radiocommunication Sector (ITU-R) is responsible for allocating radio frequencies from the spectrum. The radio frequency bands are allocated for different purposes. Some bands in the electromagnetic spectrum are used for applications such as air traffic control and emergency responder communications networks. Some bands, such as the Industrial, Scientific, and Medical Band (ISM) and the unlicensed National Information Infrastructure (UNII) band, are license-free.

The frequency range for wireless communication is 3 Hz to 300 GHz. The WLANs, Bluetooth, cellular, and satellite communication all operate in the microwave UHF, SHF, and EHF ranges. The WLAN frequency is 2.4GHz ISM bands and 5 GHz UNII bands. Specifically, the following frequency bands are allocated to 802.11 wireless LANs:

  • 4 GHz (UHF)- 802.11b/g/n/ad
  • 5 GHz (SHF)- 802.11a/n/ac/ad
  • 60 GHz(EHF) – 802.11ad

The components of the electromagnetic spectrum are gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, and radio waves. We will discuss radio waves in detail. Radio waves have the longest wavelengths, from a few centimeters to thousands of meters. The Tagle below illustrates the radio frequency band.

Frequency RangeBandWavelength Range
Extremely Low Frequency (ELF)3 Hz – 30 Hz100,000 km – 10,000 km
Very Low Frequency (VLF)30 Hz – 300 Hz10,000 km – 1,000 km
Low Frequency (LF)300 Hz – 3 kHz1,000 km – 100 km
Medium Frequency (MF)3 kHz – 30 kHz100 km – 10 km
High Frequency (HF)30 kHz – 300 kHz10 km – 1 km
Very High Frequency (VHF)300 kHz – 3 MHz1 km – 100 m
Ultra High Frequency (UHF)3 MHz – 30 MHz100 m – 10 m
Super High Frequency (SHF)30 MHz – 300 MHz10 m – 1 m
Extremely High Frequency (EHF)300 MHz – 3 GHz1 m – 10 cm
Tremendously High Frequency (THF)3 GHz – 30 GHz10 cm – 1 cm
Very Tremendously High Frequency (VTHF)30 GHz – 300 GHz1 cm – 1 mm
Tremendously Very High Frequency (TVHF)300 GHz – 3 THz1 mm – 0.1 mm
Extremely Tremendously High Frequency (ETHF)3 THz – 30 THz0.1 mm – 0.01 mm
Very Extremely Tremendously High Frequency (VETHF)30 THz – 300 THz0.01 mm – 0.001 mm

Asad Ijaz

NetworkUstad's lead networking architect with CCIE certification. Specializes in CCNA exam preparation and enterprise network design. Authored 2,800+ technical guides on Cisco systems, BGP routing, and network security protocols since 2018. Picture this: I'm not just someone who writes about tech; I'm a certified expert in the field. I proudly hold the titles of Cisco Certified Network Professional (CCNP) and Cisco Certified Network Associate (CCNA). So, when I talk about networking, I'm not just whistling in the dark; I know my stuff! My website is like a treasure trove of knowledge. You'll find a plethora of articles and tutorials covering a wide range of topics related to networking and cybersecurity. It's not just a website; it's a learning hub for anyone who's eager to dive into the world of bits, bytes, and secure connections. And here's a fun fact: I'm not a lone wolf in this journey. I'm a proud member and Editor of Team NetworkUstad. Together, we're on a mission to empower people with the knowledge they need to navigate the digital landscape safely and effectively. So, if you're ready to embark on a tech-savvy adventure, stick around with me, Asad Ijaz Khattak. We're going to unravel the mysteries of technology, one article at a time!"

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4 Comments

  1. Rifat
    February 25, 2020 @ 7:30 am

    THE INFORMATIONS ARE VERY HELPFUL AND INFORMATIVE.

    • Shahab Ali
      February 25, 2020 @ 10:02 am

      Thank you so much for your appreciation and your comment

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