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Radio waves are electromagnetic waves. Electromagnetic waves include waves such as X rays, ultraviolet light, visible light, infrared rays and so on, but you probably imagine radio waves to be quite different from these waves. Of the various kinds of electromagnetic waves, radio waves have a longer wave length than infrared rays, and are defined by the Radio Law as 'electromagnetic waves with a frequency of less than 3,000 GHz (3 THz)'
Ultralow frequency radio waves
below 3kHz
radio waves
3kHz~
3THz infrared rays
3THz~
380THz visible light
380THz~
790THz ultraviolet light
790THz~
105THz X rays
105THz~
107THz γ rays
above 107THz
Names of radio waves Frequency Wave length Principal applications VLF(Very Low Frequency) 3kHz ~ 30kHz 100km ~ 10km LF(Low Frequency) 30kHz ~ 300kHz 10km ~ 1km Vessel / Airplane beacon MF(Medium Frequency) 300kHz ~ 3MHz 1km ~ 100m AM radio, Marine radio, Amateur radio HF(High Frequency) 3MHz ~ 30MHz 100m ~ 10m Shortwave broadcasting, Marine / Air radio, Amateur radio VHF(Very High Frequency) 30MHz ~ 300MHz 10m ~ 1m TV, FM, Fire radio, Police radio, Disaster PA radio network UHF(Ultra High Frequency) 300MHz ~ 3GHz 1m ~ 10cm Low power radio, Mobile-phone, Taxi radio, Amateur radio, TV, Wireless LAN SHF(Super High Frequency) 3GHz ~ 30GHz 10cm ~ 1cm Satellite broadcasting, Radar EHF(Extremely High Frequency) 30GHz ~ 300GHz 1cm ~ 1mm Satellite broadcasting, Radio astronomy, Radar submillimeter waves 300GHz ~ 3THz 1mm ~ 0.1mm
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∙ 9y ago
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∙ 12y agocarrier waves
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What method of signal transmission uses radio waves to carry signals?
The analog method of signal transmission uses radio waves to carry signals. Digital transmission involves the use of satellites to transmit signals.
Do computers use radio waves?
Absolutely. Computing is highly integrated into radio frequency (RF) type communications. Examples of RF integration include Bluetooth, WiFi, and RF peripherals such as the mouse and keyboard.
What are digital formats are descriptions of signals?
Waves
What humans use radio waves?
Radio waves are used to transmit signals from a radio station, and you can receive the signals with a radio, and hear them as sound such as speech or music. The long wavelength of radio waves makes them a suitable medium for transmitting over a large range. it is also use in agriculture...... it is used to diagnose different diseases
Are radio waves a form of sound or light?
When you listen to the radio, you are hearing sound, which has no resemblance to light, radio waves, or x-rays. However, the sounds you hear are created in the radio receiver, using information that was carried to your location by means of radio waves.
Waves used for broadcastig radio signals are called what?
The waves used to broadcast radio signals are called RF waves and these generally lie in VHF and UHF band of electromagnetic spectrum.
How are radio signals broadcast?
from transmitter through air molecules in the form of waves
What is the difference between broadband and a broadcast?
Broadband involves sending multiple signals on multiple frequencies. Broadcast involves using radio waves also known as electromagnetic radiation to send signals.
How are radio waves and television signals added to EM radio waves?
by changing the amplitude or frequency of the radio waves.
Cell phone signals are transmitted by?
radio waves radiation
Which waves carries AM and FM signals?
Radio waves
How are radio television signals added to EM radio waves?
by changing the amplitude or frequency of the radio waves.
What do baby monitors have to do with Electromagnetic waves?
The monitoring device is a radio transmitter that sends signals to the radio transmitter. Radio waves are a type of Electromagnetic waves.
Are radio waves used to broadcast television programs?
yes
Which EM waves can carry television signals?
Radio waves. Low frequency.
Was the radio named after radio waves or were radio waves named after the radio?
Radio waves were discovered before the radio was invented.
How can radio telescopes be improved?
the radio waves be improved by using the bigger signals
