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Why radio waves are modulated even though they have high frequency?
Wiki User
∙ 13y ago
A radio wave is strictly a carrier of information. The modulation is necessary to convey the information, speech, music, data, etc. Sometimes a radio wave can carry information by its presence or absence. If the radio wave is present, it means one thing. If it is not present, it means another.
Wiki User
∙ 13y ago
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How do radio waves get from the radio station to your car radio?
Radio stations use a broadcasting antenna to transmit electromagnetic waves at literally hundreds of thousands of watts. This transmission is modulated, (tuned), at a specific frequency between 87 and 108 Mhz.
Which has a higher frequencies am radio waves or fm radio waves?
FM radio has the higher frequency which is why it sounds better. AM is a lower frequency but can travel further because the waves bounce off
What is the frequency of radio wave?
Fm radio waves travel at various frequencies between 87.5 MHz and 108.0 MHz
What is a radio wave's relative wavelength and frequency compared to other waves in the Electro-Magnetic Spectrum?
Radio waves are the lowest frequency (and therefore longest wavelength) waves in the electromagnetic spectrum.
What are radio waves and what are they used for?
Radio waves are generated and modulated with the transmitted information at the transmitting station and radiated by its antenna. These radio waves are picked up by the receiver antenna, filtered from all the other transmitted signals, detected and demodulated by the receiver to recover the transmitted information.
What does fm and am stand for?
AM-Amplitude modulated FM-Frequency modulated Explanation: The frequency and amplitude refer to the width and height of wavelengths in the radio waves that are used to transmit the signal. FM is usually a better signal than AM because the frequency of the waves is less distorted than amplitude.
How do radio waves get from the radio station to your car radio?
Radio stations use a broadcasting antenna to transmit electromagnetic waves at literally hundreds of thousands of watts. This transmission is modulated, (tuned), at a specific frequency between 87 and 108 Mhz.
What two properties of EM waves are used to attach info to radio signals?
The only properties of EM waves that you can control are amplitude and frequency. (Wavelength is related to frequency in a simple numerical way.) Amplitude-modulated radio (AM) is what you listen to between 550 and 1700 on your dial, and Frequency-modulated radio (FM) is what you listen to between 88 and 108. There are also slick high-tech methods of attaching one stream of information to the amplitude and different information to the frequency at the same time.
What is a form of transmission in which signals are modulated as radio frequency analog waves that use different frequency ranges?
Broadband, the most common network data transmission system in use today.
What electromagnetic wave have the lowest frequency?
Radio Waves.
How are radio and television waves added to em radio waves?
by changing the amplitude or frequency of the radio waves.
What radio waves?
Radio waves are electromagnetic waves occurring on the radio frequency portion of the electromagnetic spectrum.
What is the frequency range of radio waves that can penetrate human body?
The frequency range that the radio waves can penetrate the human body is between 1Hz and 10 KHz. This frequency of the radio waves is however not dangerous.
How are radio waves and television signals added to EM radio waves?
by changing the amplitude or frequency of the radio waves.
How are radio and television waves added to em waves?
by changing the amplitude or frequency of the radio waves.
Which has a higher frequencies am radio waves or fm radio waves?
FM radio has the higher frequency which is why it sounds better. AM is a lower frequency but can travel further because the waves bounce off
What do radio waves have the lowest of?
frequency
