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Electromagnetic waves in a vacuum move at the speed of light in a vacuum, as light is just one form of electromagnetic wave. According to Einstein's Theory of Relativity, nothing can move faster than the speed of light in a vacuum, so there is no way to speed up radio waves (unless they are initially moving in some other medium than a vacuum).
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoSpeed of radio wave is given by 1/(mu*ebsylum).5. Thus it is independent of frequency.
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Why do you need a carrier wave?
In radio transmission, you could theoretically transmit radio signals at audio frequencies. However, because the wavelength of electromagnetism at audio-like frequencies is Huge and the frequency of a radio transmitter dictates the size of the antenna and the power requirement, you would need A Very Big Antenna and a Very Big Power Supply to do this. So, we've learned to transmit at higher "carrier" frequencies, modulating either the amplitude or frequency of the carrier signal with our audio and subtracting the carrier at the receiver end.
On a Motorola portable radio what is the difference between channel and frequency?
Not only on Motorola Portable radio, but in all radio communications: Frequency is number of cycles (full change circles) per second. When radio device operates on some frequency it requires band of adjacent frequencies to be able to transmit modulation (information) too. To avoid mixing, next transmitter must take some "distance" (higher or lower frequency) far enough from frequency of the first one. According to regulations basic frequencies are "named". Channel number is the name of its frequency given by communication regulations. For example, TV UHF channel 21 takes all frequencies from 512 to 518 MHz (megahertz), channel 22 from 518 to 524 MHz, and so on... CB Radio channels 21 and 22 occupy frequencies from CB band, not from TV band. Tables of channel frequencies within various bands can be easily found by search engines.
H parameter operate in which frequency?
up to radio frequencies i.e 20-20kh
How do you stop a satellite signal in a temple?
Microwave Radio Frequencies (RF) does not travel through dense metals. A metal roof would block the signal. If you try to get your position on a GPS inside the temple and cannot, then the satellite signals are blocked.
What does a communication system analyzer do?
Check the radio on sensitivity,power,capability on receiving frequencies, and to check if it's weak or not.
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 are the advantages of larger radio frequencies over smaller ones?
easier to transmit, higher frequencies radiate better. there is more bandwidth available at higher frequencies. higher frequencies travel in straighter lines so are more directional, this may or may not be an advantage depending on what is needed
Gamma rays faster than radio waves?
No. Gamma rays and radio waves are both electromagnetic waves and travel at the same speed. They just have different wavelengths/frequencies.
What is the plural of frequency?
The plural of frequency is frequencies. As in "radio waves travel on different frequencies".
What wave viabrates faster radio wave or microwaves?
Microwaves ARE radio waves, with frequencies above 3 GHz.
Is light part of the radio spectrum?
No, light is not part of the radio spectrum. But, both the radio spectrum and light are part of the electromagnetic spectrum. The electromagnetic spectrum is a range of frequencies from very low to very high. Light frequencies are higher than radio frequencies but both are the same kind of thing.
Which radio show wakes up Snorlax?
Pokeflute the channel is found on the higher frequencies.
What is the frequency of radio wave?
Fm radio waves travel at various frequencies between 87.5 MHz and 108.0 MHz
What travels faster radio waves or ultraviolet waves?
neither... they both are electromagnetic waves and therefore travel at the same speed... but ultraviolet waves have a higher frequency and also have more energy than radio waves
Why dont broadcast stations transmit at audio frequencies?
1) If information was transmitted at audio frequencies, then you would actually hear the signal. This would be identical to a speaker playing a song on your stereo. 2) Audio frequencies, in the world of radio frequencies, are long wave-length, low energy signals that can't travel long distances. Again, that's why you can only hear someone's stereo from within eyesight of the system. Human ears can detect from about 3Hz up to around 20KHz (some better than others). 3) True radio frequencies start at in the 100Khz range. This is your most basic radio that uses amplitude modulation (aka AM radio). Many people today that listen to the radio listen to frequency modulated (FM) stations. The difference between AM and FM is beyond the scope of the answer to this question. Being a higher frequency, the signals have more energy and can travel farther distances than audible frequencies. 4) Audible frequencies (sounds the human ear can pick up) can only "transmit" amplitude (loudness or volume) and frequency (high or low pitch). However, higher frequencies, such as those used for radio, can carry much more information than the volume and pitch of a signal. This is a direct result of radio frequencies being harmonics (integer multiples) of audible signals. For instance, if a radio signal has a frequency 20 times higher than the audio signal it is transmitting, then that radio signal can not only carry the audio signal, it can also carry other information, such as information about the broadcast station. A radio signal can "encode" information within the signal allowing more information to be carried than just the audio signal itself.
Are the frequencies of radio and television signals higher or lower than those detected by the human eye?
Substantially lower.
What are aircraft radio frequencies?
Aircraft Radio Frequencies, are *How pilots, are able to speak to the people working at the "Control Tower," at Airports. That's what (ARF)= Aircraft Radio Frequencies, really are.(:.
