Exposure to very high RF intensities can result in heating of biological tissue and an increase in body temperature . Tissue damage in humans could occur during exposure to high RF levels because of the body’s inability to cope with or dissipate the excessive heat that could be generated.
Read moreWhat uses RF frequency?
Modern devices often generate electromagnetic fields of radio frequency (RF) ranging from 100 kHz to 300 GHz. Key sources of RF fields include mobile phones, cordless phones, local wireless networks and radio transmission towers . They are also used by medical scanners, radar systems and microwave ovens.
Read moreWhat is RF and how is it used?
A radio frequency (RF) signal refers to a wireless electromagnetic signal used as a form of communication , if one is discussing wireless electronics. Radio waves are a form of electromagnetic radiation with identified radio frequencies that range from 3kHz to 300 GHz.
Read moreWhich frequency is best for communication?
Digital communication systems such as Bluetooth and some of the 802.11 protocols operate in the low-gigahertz range, more specifically, at frequencies near 2.4 GHz . These are generally short-range systems, but they offer reliable communication and the high carrier frequency enables high data rates.
Read moreWhich frequency bands are used for communication?
ITU Band nameAbbreviationFrequency and WavelengthMedium frequencyMF300–3,000 kHz 1,000–100 mHigh frequencyHF3–30 MHz 100–10 mVery high frequencyVHF30–300 MHz 10–1 mUltra high frequencyUHF300–3,000 MHz 100–10 cmRadio spectrum – Wikipedia en.wikipedia.org › wiki › Radio_spectrum
Read moreWhat are communication frequencies?
Nowadays, radio communication or radio frequency communication refers to wireless communication through the air with electromagnetic wave frequencies ranging from 3 kHz to 300 GHz . Wireless communication is now classified by the medium electromagnetic waves propagate through.
Read moreWhy high frequency is used in communication?
Originally Answered: Why do we use high frequency waves as carrier waves? HF (2 – 30 MHz) is used for long distance communications because the atmosphere acts to bend these rays and bounce them back towards earth, so that they can travel all over the world, using very modest power to do so .
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