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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

What speed radio wave with frequency 1000Hz?

All radio waves travel at light velocity ( 2.998 * 108 m / s)

The relavant equation involved is:

Velocity (fixed) = wavelength * frequency

So, with frequency given and velocity fixed, only wavelength remains to find.

(2.998 * 108) = wavelength * 1000

So:

wavelength = (2.998 * 108) / 1000

= 2.998 * 105 metres

What is a radio waves energy?

(The power of the radio transmitter) times (the length of time it continues to transmit)

Your 1994 SC300 Lexus radio sound went down low and wont go any louder you can barely hear it What could be wrong?

I seem to be having exact same problem in my 96 Lexus es 300. I thought replacing the radio will fix it but that was not the case. I was told it might be the amplifier, but not sure where it is.

How does the volume control work on a radio?

It is a variable resistance.

As you turn the volume control from low to high - or press buttons to do the same thing on miniature electronic items like mobile phones and MP3 players - the resistance of the volume control is reduced so that a higher current carrying audio waves can get through to the amplifier and so to the item's loudspeaker or headphones.

What advantages does a radio telescope have over an optical telescope?

Quasars and some pulsars are dim in the visible light range. In the radio spectrum, however, they're extremely bright, and as such observing them in telescopes that observe these wavelengths is more beneficial.

How do you remove a radio from a 1977 gmc sierra?

The older radios are easy to remove. Pull the knobs off the front and there's nuts benind them. It should take a 9/16th deep barrell socket to remove them. There may be a bracket on the back of the radio in the dash. After that, pull it out from the rear and unplug the wires. That's it.

What does the radio code f5vf-18c852-ae mean on the side of the radio in my 1995 town car?

That is fords part number, if you need a new one or info about, this is the way to identify what you have.

How do you hook up the antenna cable to an aftermarket radio in a 05 Nissan altima?

you must go to wal-mart or any other store and by the adapter wireing kit for that car. Most foreign cars need adapters to hook up to aftermarket stereos.

What does money in the bank mean?

To say that something is like money in bank means that it represents a guaranteed resource, or assurance of success.

What are the current levels of a Ham Radio License and is Morse code knowledge still needed at all?

Technician, General, and Extra are the three levels. The Morse code is no longer needed to pass any of the tests. The American Radio Relay League (www.arrl.org) has plenty of great information on ham radio.

In Radio Terms What is a Restricted license?

It's just what it sounds like--a license that restricts your privileges. Most of the people who have these are pilots or mariners. If you're a pilot who has a restricted license, you can use an aviation radio only if it's in an airplane. You can't put an aviation radio in your car, or in your house, or walk around with it and talk on it. Same deal with marine radios--you can use a marine radio in a boat but not on shore. Yes, there are handheld aviation and marine radios.

The tradeoff: they are good for life.

If the dash and radio lights on a Nissan Maxima do not come on how do you check the fuses or wiring?

unless the vehicle's wiring has been disturbed in some way, i.e., modifications, new equipment in dash, then wiring is not likely to be the cause; use you owner's manual to locate fuse diagrams and fuse box location; use fuse removal tool, usually found mounted in fuse box or fuse box cover to extract and reinstall fuse; be sure to replace fuse with exact same amp type; if this does not solve problem, then wiring ground could be cause...now you are on an adventure of wire chasing.

Where can you find the radio anti-theft code for a 1997 volkswagen jetta?

if your vehicle was serviced by a dealer and they had to re-enter the code, Most dealers would put the code in the trunk area. Some in the spare tire and some on the trunk hood. You will have to look. It will be a 4 digit number with either a 1 or 0 as the first digit.

How do you change the background color on a Sony - Xplod 52w x 4 Apple iPod-Satellite Radio-HD Radio-Ready CD deck?

Hold down the knob for a few seconds, then scroll right until you see COLOR. Then press the knob once and scroll left or right until you find what you want.

How are radio stations funded?

Radio Stations are funded by their advertisers (Website, commercials) and are hosted by their parent companies (Clear Channel Communications, Greater Media, etc)

Where is the clock fuse on the 1998 Honda crv ex-- The radio works so I am thinking it might be number 29 that's marked not used in the manua and is right after the radio?

Sorry to tell you this - but - if it is the original equipment clock that was built with the car, the chances are 99% that the clock has burnt out. Those clocks were equipped with Liquid Crystal Diodes which have a finite life to them. If the clock is now dark, the odds are greatest that the clock has simply come to the end of its life and needs to be replaced.

Are X-ray and gamma radiations similar to visible light or radio waves except for their higher energies?

X-rays, gamma rays, radio waves, and visible light are forms of electromagnetic radiation. Gamma rays are highest in energy compared to other electromagnetic radiations. Radio waves are least in energy in the whole electromagnetic spectrum.

What is quiet talk on two way radios?

Quiet Talk is achieved through the use of a Continuous Tone-Coded Squelch System or CTCSS. This is a circuit that is used to reduce the annoyance of listening to other users on a shared two-way radio communications channel. It is also sometimes called tone squelch. Where more than one user group is on the same channel (called co-channel users), CTCSS filters out other users if they are using a different CTCSS tone or no CTCSS.Receivers equipped with a CTCSS circuit usually have a switch that selects normal mode or CTCSS mode. When enabled, the CTCSS radio circuit, instead of opening the receive audio for any signal, causes the two-way radio receiver's audio to open only in the presence of the normal RF signal AND the correct sub-audible audio tone (sub-audible meaning that the receiver circuitry can detect it, but is not apparent to the users in the audio output). This is akin to the use of a lock on a door. A carrier squelch or noise squelch receiver not configured with CTCSS has no lock on its door and will let any signal in. A receiver with CTCSS circuitry (and with it enabled) locks out all signals except ones encoded with the correct tone. CTCSS can be regarded as a form of in-band signaling.

Future trend in consumer electronics in annotated bibliography?

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How radio program is broadcast and receive?

The audio from the broadcast radio station is converted into a series of electro-magnetic radio waves via an aerial, which is receieved by the aerial in a radio and demodulated back into an audible signal again.

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