0
ALL radio communication ... whether AM. FM, microwave, TV, satellite, police, taxi, Bluetooth®,
cellphone, smartphone, analog, digital, ham radio, garage-door opener, GPS, space probe,
or WiFi ... works with one device sending out electromagnetic radiation and another one
detecting it. Many different frequencies are used for radio ... roughly anywhere from
20 thousand waves per second all the way up to 300 billion waves per second. The receiving
device picks out the one it wants by listening to only the correct frequency and ignoring
all others. But it has to do more than just recognize whether the one it expects to hear
is there. There has to be some way to add a good deal of information to the signal, otherwise
it's not too useful. The "information" is the voice, music, video picture, or stream of data that
the signal carries with it. There are several different ways to add that information to the radio
waves. The question asks about AM radio. 'AM' is one way to add information to the radio waves.
With AM, it's done by changing the 'amplitude' (strength, power, voltage, loudness) of the waves,
exactly in the form of the sound wave or other information you want to send. The receiving
device only has to capture the pattern of how the amplitude (power, loudness) is changing,
and it immediately has a copy of the sound wave.
What else can I help you with?
What is radio signal used as a distress call?
sos
What does a radio transform waves into?
Sound.More informationAfter a modulated carrier signal has been received through the radio's aerial, the radio de-modulates it to release the live sound as picked-up from microphones in the radio studio (or was taken from recordings), which was then used to modulate the carrier signal at the transmitter.De-modulation that is done by a radio receiver can be described very simply as "removing the carrier signal to produce the sound".
A radio station ask his listener to call in their opinon regarding the use of pesticides in residential areas what type of sampling is used?
Convenience
Radio waves carry a blank from a station to your home?
Oh, dude, like, radio waves are totally carrying the sweet tunes from the station to your crib. It's like magic, but science, you know? So, next time you're jamming out to your favorite song, just remember it's all thanks to those chill radio waves doing their thing.
Is wkrp a real radio station?
yes it used to be an am station until 2003 It is now a tv station broadcasting independent programming
What type of wave is used to communicate with astronauts on international wave station?
radio wave
How is a radio signal transmitted and received?
A broadcasting radio station has to generate and transmit (send out) carrier signals from its transmitters. A carrier signal has to be used because it is impractical to send out sound waves of energy over the very long distances used for radio broadcasting. If, for example, a station broadcasts on a radio frequency of 455 kHz, before it is transmitted by the station's radio transmitters, that carrier signal first has to be modulated with the sounds coming from the station's studio. The modulation method used can be either amplitude modulation (AM), frequency modulation (FM) or digital (DAB). DAB is short for "digital audio broadcasting". At the radio receivers used by the station's listeners, the modulated carrier signal is received through their aerials and then has to be de-modulated to release the studio sound. De-modulation can be described very simply as "removing the carrier signal to produce the sound". That sound then has to be amplified so that it can be listened-to using loudspeakers or headphones. The actual carrier frequencies used by a particular station have to be varied: 1) to suit their transmitters' locations 2) to suit the areas to be covered by that station's broadcasts and 3) to avoid causing interference with other radio stations. In every country there is a government agency which controls the particular frequencies which can be used by each station that broadcasts in that country. The fair use of all the frequencies available for broadcasting worldwide is co-ordinated and administered by part of the United Nations organisation - the ITU (International Telecommunications Union) - and its members are representatives from all countries worldwide.
Which type of security threat uses a low-power radio signal to cut off communication from a cell phone to a base station?
JammingAnswer Explanation: A jammer can be used to cut off the communication between a cell phone and a base station. Cell phones use radio signals to transmit and receive calls through the air. Jamming is accomplished by confusing the cell phone into thinking that there is no base station available to service it.
How do you get a poke flute radio station from Pokemon gold?
Move your cursor to the top of the signal screen thingy. The pokeflute is used to awake sleeping pokemon. Hope I helped!
What is radio signal used as a distress call?
sos
What does a radio transform waves into?
Sound.More informationAfter a modulated carrier signal has been received through the radio's aerial, the radio de-modulates it to release the live sound as picked-up from microphones in the radio studio (or was taken from recordings), which was then used to modulate the carrier signal at the transmitter.De-modulation that is done by a radio receiver can be described very simply as "removing the carrier signal to produce the sound".
A radio station ask his listener to call in their opinon regarding the use of pesticides in residential areas what type of sampling is used?
Convenience
What word is used in a radio signal as a distress call?
Mayday
What kind of signal is used in a GPS satellite?
radio waves
Radio waves carry a blank from a station to your home?
Oh, dude, like, radio waves are totally carrying the sweet tunes from the station to your crib. It's like magic, but science, you know? So, next time you're jamming out to your favorite song, just remember it's all thanks to those chill radio waves doing their thing.
What important role do the ions in the ionosphere play in making the use of technology possible?
They are being used by radio station to transmit signals from one station to another. Thanks to the property of ionized atmospheric gases to refract high frequency (HF, or shortwave) radio waves, the ionosphere can be utilized to "bounce" a transmitted signal down to ground
Are used to send signals from a pager to a base station?
Pagers send signals to a base station using radio frequency (RF) communication. When a message is sent to a pager, it is transmitted via a base station that broadcasts the signal over a designated frequency. The pager, tuned to that frequency, receives the signal and alerts the user. This system allows for efficient and quick message delivery over a wide area.
