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Radio
A radio refers to an electronic device that works by receiving radio wave (an electromagnetic wave) that has the capacity to broadcast news, speech, music and other audio through the air.
8,296 Questions
How radio waves are transmitted?
In a radio station, the signals start out at a low-level. On the order of a few hundred millivolts, signals come from a computer's soundcard, or a CD player, nowdays it is almost guaranteed to be some Digital-to-Analog Converter (DAC). These signals are fed into a mixer, where they are combined with other similar signals, and those from the DJ's microphones (also very low level, but amplified first by a Mic pre-amp). The final mix from the mixer is then fed to a RF modulator/amplifier. Here, the signal is first modulated. That is, it is combined with a carrier signal. For example 100.5 FM starts with a 100.5 MHz sinewave. Then it is frequency-modulated by the audio signals from the mixer. In FM, the input signal (audio) causes instantaneous variations in the frequency of the carrier. See the FM Modulation link. Modulation is necessary to carry the signal through the air. Audio waves (20Hz - 20kHz) have such a large wavelength that they would require unbelievably large antennas to broadcast/receive. This modulated signal is then amplified from several mW (.001 Watt) to several kW (1,000 Watts). Then it is carried to the antenna on the radio tower, where it is transmitted through the air.
What theme do both the novel and radio versions of The War of the Worlds share?
Humans are too vain, which can lead to trouble.
What year was the first radio ever made?
The first act of wireless telegraphy took place August 14, 1894. The first radio receiver was official built in 1895.
When were radio waves discovered?
Scientists in spent a lot of time looking for electromagnetic radiation at low frequencies - radio waves - after their theoretical prediction by James Clerk Maxwell in the 1860s. They were detected near lightning strikes and attempts were made to reproduce the effect artificially using electric sparks. Hertz in Germany and Popov in Russia were two of the early scientific investigators.
Guglielmo Marconi developed the science into a means for communicating without wires - wireless telegraphy - and conducted experiments that spanned greater and greater distances until in 1901 a message was sent over the Atlantic from Poldhu in Cornwall to Newfoundland.
How do you replace the bulb on the steering wheel radio controls on a 1997 Ford Explorer?
There is no replaceable bulb in the illuminated switches on a steering wheel. There is no room inside the button for a bulb, and such a bulb would create so much heat, that it would melt the assembly The illumination LED is integrated into the switch circuitry. The only way to fix it is to relace the switch assembly.
How much does it cost to become a radio announcer?
Not nearly enough. To start off in Radio you make roughly making $20-25,000 per year. That is with a full time gig. If you're good and host a morning show, you could make upwards of $100,000 or more per year.
How long does a 30 second radio spot typically last?
Completely depends on the individual radio station, how many listeners are within the
sound of its programs, and how many of those actually listen to that station (the station's
'ratings'.) The more people listen to it, the more a commercial spot will cost you.
How do you remove the car radio from a 2001 Seat Leon S?
Tip: Download the factory service manual from Toyota and you'll have the full step by step explanation along with pictures. The best I can do here is give you the step by step as a cut/paste from the manual. Radio Receiver Assy Replacement. 1. Remove shift lever knob sub assembly 2. Remove console upper rear panel 3. Remove console panel upper 4. Remove instrument cluster finish panel center 5. Remove center cluster integration panel, remove four bolts. 6. Disconnect electrical connectors. 7. Disengage the 4 claws and remove the center cluster integration panel assembly. 8. Remove radio bracket #1 by removing 6 screws Voila, the radio is out! Assembly is reverse.
What radio station is panic at the disco on?
Panic At the disco is rarley on the radio, actually only 2 of their 32 songs have ever aired the radio and those were mad as rabbits and i write sins not trageties.
There are exactly 100 carrier frequencies on the commercial FM radio dial, and all
of the FM stations in the USA share them.
We just searched the FCC's ULS for stations in the US on 104.3, and it returned
a list of 374 items.
If you had mentioned the city you're in when you listen to 104.3, we might have had
a fighting chance of answering your question.
If, by some chance, you happen to live in New York City, then:
Address:
WAXQ-FM 104.3
1180 Avenue of the Americas
6th Floor
New York, NY 10036
Main Telephone: 212-575-1043
Main Fax: 212-302-7814
Contest / Request Line: 888-872-1043
Studio Fax: 212-819-1043
Copyright © 2003-2009 Clear Channel. All rights reserved.
or follow the link:
http://www.q1043.com/script2/print.php?page=/pages/info/contact2.html&article_id=302617&feed_id=107895
How do you reset the radio code on 94 Lexus LS400?
If your radio is displaying "Loc" and you cannot remember or know the 4 didget code to unlock it, you can take it to a local Chevy dealer and they should be able to unlock it for a small price as this happened to me.
What has the longest wavelength-light waves x-rays or radio waves?
Radio Waves are in the lower end of the electromagnetic spectrum and have wavelengths between several hundred feet (AM Radio) to fractions of an inch (Microwave communications).
X-Rays are high energy photons at the upper end of the electromagnetic spectrum, with wavelengths shorter than visible light, measured in nanometers to picometers.
Color wise, Red is the longest visible, while Violet is the shortest wavelength of visible light.
There are many graphical charts of the electromagnetic spectrum that show where the various waves fit in relation to each other, these can be found on an internet image search.
How to remove the radio on a 2004 Ford Mondeo?
For a 6000cd unit with central volume control You need 4x horizontal removal keys (widely available on the web) type ford removal tool in to any search engine. Each key inserts a certain way and releases the locking mechanism. Pull on the ring part of each key to pull the unit out.
Don't try to use the old coat hanger trick or a screwdriver as you are most likely to damage the unit.
What is the reset code for the radio in a Chevy aveo after a battery replacement?
Try each of these until you get the radio to reset. There us no way to tell which is yours; just try until one works.
2253, 3116, 3451, 2152, 4362, 4316
4316, 4513, 4362, 1156, 2145, 1156
6451, 6361, 5624, 5241, 3346, 1165
3241, 4524, 5436, 5813, 3265, 5624
2453, 3462, 3251, 5445, 8253, 1156
2346, 4853, 6645, 5253, 1325, 4136
3116, 3221, 2151, 5312, 2654, 4314
6234, 4356, 1415, 1435, 1156, 1651
1652, 4524, 6361, 2145, 5432, 1857
4353, 4316, 2152, 4513, 4362, 1156
2145, 3451, 6361, 5624, 5241, 3346
5436, 5241, 4316, 1651, 5346, 1341
5632, 3451, 1638, 1636, 5324.
What conducts radio waves through space?
Radio waves are not conducted. They propagate. They do not need a medium through which to propagate. They just move.
What is the most played American radio song?
A good song in America will depend on what situation it's being used for. If for a patriotic purpose, America the Beautiful is an appropriate song. However, good songs are based on when they are first released. Some songs are also timeless, like We Will Rock You.
Do bands get paid every time their song is played on the radio?
Songwriters who don't foolishly sell of all legal rights to their music get paid based on an estimated radio playrate found via survey. The exact amount paid will depend on your contracts and which music play pay monitoring company you are affiliated with.
Why is the ionosphere important to radio wave transmission?
Sky wave propagation is possible because of ionosphere. Ionosphere is the region consisting of ions produced in the higher level of atmosphere almost at a height of 90km. The scientific fact is that the refractive index is inversely related to the ionic density. Because of various concentration of ions in the ionosphere, the refractive index is different. As radio waves make an entry through this region, the ray has to pass from the region of higher refractive index to lower, so the radio waves get deviated from the normal. So stage by stage, the radio waves get turned back towards the earth. This seems as if it has been reflected by the ionospheric layer. So short waves, also known as sky waves, with a range of frequency 3 to 30 MHz are better sent back to the earth. That is why irrespective of the curvature of the earth, the signals transmitted at London will be received by a radio in a town in TamilNadu, India.
How do you reset the radio security of a Toyota Yaris?
You should have a code in your owners manual. If you can't find it, call your dealership and ask them to look it up for you.
In a 2008 Yaris, you have to hold down SEEK and press 1.
This should appear: _ /_ /_
Say the 3 digit code was 987, you would need to press the button 1 ten times, the button 2 nine times and the button 3 eight times. (As the numbers begin from 0-9)
Your screen should now say: 9/8/7
Hold down scan to finish.
Or if your model is different, call your dealership service department and they will tell you how to do it.
the stanky legg is when you stick your legg out and twist it from side to side and sind do the stanky legg by .jada santiago
Claw it out with your nails...hehe...jusy kidding...Is the radio built in or superficial? If it's built in, there's not much you can actually do. But if it is superficial, then if you slide something under the edges, you can pry it up.
How do you reset the factory radio for 1998 Honda Accord?
Ford DIN Radio Removal Tools - $10.95 DIN Tools are required to safely remove the radio from many Ford vehicles. DM-10-22
These removal tools are also widely available and price from free with radio purchase, to around $4.(Auto parts, Walmart,
You only need the standard Ford radio, U shaped removal tools, readily & cheaply available at an autoparts store, Walmart, etc.
- Use the removal tools to pull the radio assembly out of the dash - note: you do NOT need to remove the plastic trim piece! :)
- Insert the tools into each pair of small holes on either side of the radio face
- They're all the way in when you feel them hit an indent, or a bit of 'click'
- Push the tops of the tools to the *OUTSIDE* while pulling the radio out from the dash. This is more "art" & feel than specific instructions.
- Pull the 2 wire harness connectors off & disconnect the radio antenna.
As you can imagine, re-installing is just a matter of connecting the wire harnesses & antenna - align and push the radio back in until you hear/feel the side-clips click back into place.
TIPS:
- Be sure to spend the few dollars for the wire harness kit - This saves you from having to CUT the factory wiring.
- This may take a few tries to get the radio loose, but be patient - maybe get one side at a time released and then sliding it out.
Go to your local auto parts store (I went to Advanced Auto Parts in the Chicago area) and they sell the radio removal tool for about $5.00. All the "tool" consists of is two pieces of metal, about the diameter of a metal coat hanger, bent in a "U" shape. You stick them into the 4 holes in the radio and just wiggle it and pull it out.
This is a good start http://www.installdr.com/InstallDocs/FLM/PDF/356021.pdf
You only need the standard Ford radio, U shaped removal tools, readily & cheaply available at an auto parts store.
- Use the removal tools to pull the radio assembly out of the dash - note: you do NOT need to remove the plastic trim piece! :)
- Insert the tools into each pair of small holes on either side of the radio face
- They're all the way in when you feel them hit an indent, or a bit of 'click'
- Push the tops of the tools to the *OUTSIDE* while pulling the radio out from the dash. This is more "art" & feel than specific instructions.
- Disconnect the 2 wire harness connectors and the radio antenna wire.
Re-installing is just a matter of connecting the wire harnesses & antenna - align and push the radio back in until you hear/feel the side retainer-clips click back into place.
You only need the standard Ford radio, U shaped removal tools, readily & cheaply available at an autoparts store.
- Use the removal tools to pull the radio assembly out of the dash - note: you do NOT need to remove the plastic trim piece! :)
- Insert the tools into each pair of small holes on either side of the radio face
- They're all the way in when you feel them hit an indent, or a bit of 'click'
- Push the tops of the tools to the *OUTSIDE* while pulling the radio out from the dash. This is more "art" & feel than specific instructions.
- Pull the 2 wire harness connectors off & disconnect the radio antenna.
As you can imagine, re-installing is just a matter of connecting the wire harnesses & antenna - align and push the radio back in until you hear/feel the side-clips click back into place.
Radio removal FordTried the coat hanger deal ended up damaging the clips. Had to remove dash to get to the clips from the backside. Better to buy the "removal tool", it's about $2 at Autozone. Ends are tapered and have a retainer on the end that fits into the radio clips. Follow instructions on packageYou need to go to Wal-Mart or Best Buy and buy a removal tool for a couple of bucks. It's u-shaped and made of wire.
You simply put this tool on the notches that show on the side of the radio, push the tool in and pull out the radio. It's really that simple.
If you don't want to purchase the special tools, you can use 4 - 1/8" Allen wrenches. Just be carefull not to insert them more than 1/2". It's a little tricky, but beats buying a tool you may only use once.
Use two radio tools available anywhere insert them into the holes in the face plate (there u shaped and fit vertically. Push them in till you hear a click the push slightly out ward on the radio tools while pulling out on them.
Or you can make the tools out of a wire coat hangar (if you are a cheapskate like me) :) Just fasten 2 "U"s wide enough to span the holes from top to bottom.
Dude, why are you asking, im like 12 and i don't know how to drive a car let alone get a radio out of it <3
How is BBC radio stations funded?
ITV is funded by advertising and sponsorship, BBC by the government from the collection of licence fees.
Read more: How_is_ITV_and_BBC_funded
Some amateur radio operators regularly communicate with each other by reflecting
their signals off of the moon, so we know that amateur radio communication is possible
over distances of at least a half-million miles ... something like 19 times the distance
around the earth
We don't know how much farther it might work, because there aren't any hams out there
to talk to.
