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Frequency Bands : EHF, SHF, UHF, VHF, HF, MF, LF, VLF and Their Uses



1. Extremely High Frequency (EHF)30 - 300 GHz

Uses
5G Networks
5G millimeter wave band,
6G and beyond (Experimental)
RADAR,


2. Super High Frequency (SHF)3 - 30 GHz

Uses
Ultra-wideband (UWB,
Airborne RADAR,
Satellite Communication,
Microwave Link Communication or SATCOM


3. Ultra High Frequency (UHF)300 - 3000 MHz

Uses
Satellite Communication,
Television, surveillance,
navigation aids


Also, read important wireless communication terms

4. Very High Frequency (VHF)30 - 300 MHz

Uses
Television,
FM broadcast,
navigation aids,
air traffic control,




5. High Frequency (HF)3 - 30 MHz

Uses
Telephone,
Telegram and Facsimile,
ship to coast, ship to aircraft communication,
amateur radio,



6. Medium Frequency (MF)300 - 3000 KHz

Uses
coast guard communication,
direction finding,
AM broadcasting,
maritime radio,



7. Low Frequency (LF)30 - 300 KHz

Uses
Radio beacons,
Navigational Aids



8. Very Low Frequency (VLF)3 - 30 KHz

Uses
Navigation,
SONAR

Some Important Questions about Different Frequency Bands

Q. What is -3dB frequency response or -3dB bandwidth?

A. At the circuit level, the phrase 3dB frequency response is frequently used. In short, a -3dB frequency response indicates that the signal's power has decreased to half of what it was initially. The frequency at which the output gain is lowered to 70.71% of its highest value is defined by these -3dB corner frequency points. Then, we can rightly state that the frequency at which the system gain has decreased to 0.707 of its maximum value is at the -3dB point. [Read More]

#donnez en toutes lettres les sigles suivants:ehf;gsm;rnis;hf;vlf;uhf;lf;shf;mf;vhf.
 (Give the following acronyms in full:ehf; gsm;rnis; hf;vlf;uhf;lf;shf;mf;vhf.)

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Admin & Author: Salim

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  Website: www.salimwireless.com
  Interests: Signal Processing, Telecommunication, 5G Technology, Present & Future Wireless Technologies, Digital Signal Processing, Computer Networks, Millimeter Wave Band Channel, Web Development
  Seeking an opportunity in the Teaching or Electronics & Telecommunication domains.
  Possess M.Tech in Electronic Communication Systems.


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