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Those which you can use for free, for instance a tv remote control uses such frequencies.
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What is the period of radio station wkto 88.7 FM FM radio station frequencies are measured in megahertz where 1 mhz 1000000 hz?
3.38m
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.
What are the SAP addresses in FM radio broadcasting?
SAP addresses are the FM frequencies, like FM 91.4.
Why particularly 433.92 MHz is used in RF transmitter and receiver?
RF Code first began offering products in the 303MHz range (US & Japan) and later in the 433MHz range (US & Europe). These signal frequencies are limited, low-power, unlicensed ranges in the ISM (Industrial, Scientific and Medical) portion of the UHF band. RF Code began offering 433MHz products because of acceptance of this frequency in Europe. 433MHz is also the frequency which offers optimal performance in crowded environments such as offices, data centers, and hospitals. Generally, radio signals at lower frequencies travel farther than those at higher frequencies. Lower frequencies also benefit more from the effects of reflection and refraction which makes them more suitable for applications in crowded environments. For example, the 433MHz wavelength is approximately 69 cm vs. 10 cm for 2.4GHz. The larger wavelength of the 433MHz signal allows it to diffract around obstructions that might be found in a typical, crowded operating environment such as an office or warehouse. At frequencies of 2.4GHz and above, the signal is susceptible to obstructions, creating blind spots (areas of no coverage). Higher frequencies also require more power.
Why RC coupled amplifier is called audio amplifier?
Because radio control relies on different frequencies. Since frequencies are involved in the process, an audio amplifier can be used to amplify alternating currents (currents that change), and it does the same job.
Why should you reserve licensed frequencies from the FCC for WiMAX service?
Licensed frequencies will suffer less interference than unlicensed frequencies.
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.(:.
What is the frequency for EWTN?
Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.Check the channel finder on their website for their TV and the radio frequencies. See the links below.
How do you do your own radio station?
To start your own radio station you have to have a fair number of things in place from equipment to a license. You could have the ability to broadcast at a kabillion watts and it would do you no good whatsoever until you get a license (the FCC is rather testy about unlicensed transmissions on the FM and AM frequencies). Get the license, get the equipment and get on the air!
What is extremely low frequency radiation?
Low frequency waves are waves with long wavelengths, by definition, since their cycle is slowly repeated. One example is AM radio waves compared to visible light waves. AM radio waves have a frequency of around 1 MegaHertz (1,000,000 s-1) and are around 500 meters long. In contrast, visible light waves have a frequency of around 500 TeraHertz (300,000,000,000,000 s-1) and are around 500 nanometers long (.000000500 meters).
What is low frequency radiation called?
LF-RF or low frequency radio frequencies. This spans frequencies from just below the AM radio band through the shortwave radio bands.
Why 2.4GHz is free?
Defined by the ITU (International Telecommunication Union) originally designated certain unlicensed radio spectrum (frequencies) to be allocated for Industrial, Scientific and Medical (aka ISM) applications. As other communities became aware of the these "free" radio frequencies (RF), many of the economical frequencies have been adopted and standardized by other industries (e.g., cordless telephones, microwave ovens, wifi/wireless networks, Bluetooth, ZigBee, etc). Specifically, the 2.4Ghz you are referring to is available to the "Americas" (North & South America, Canada, Greenland, some Pacific Islands, etc) part of the Globe. In the US, the FCC further controls the (unlicensed) spectrum and limits its applications to low power transmissions. In the US the ISM frequencies are defined as 900Mhz (915Mhz), 2.45Ghz, 5.8Ghz, & 24.125Ghz. P2E
What is the plural of frequency?
The plural of frequency is frequencies. As in "radio waves travel on different frequencies".
Suppose you work for a telecommunications carrier who is looking into providing WiMAX in a suburb of a large city A colleague suggests that your company reserve licensed frequencies from the FCC for?
Network+ Guide to Networks answer: Licensed frequencies will suffer less interference than unlicensed frequencies.
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.
How can I listen to walkie talkie frequencies on my PC?
A computer cannot do that. Buy a radio that receives these frequencies.
What is the highest frequency commonly used for unlicensed radio frequency connections?
95 GHz
