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Why inTV broadcasting video signal is trancemitted in AM but audio signal is in FM?
AM was used for the video signal because components to transmit and receive the video signal (tubes, originally) were not available that could modulate the frequency fast enough for the amount of information required for a video signal. The VHF band, where most of television broadcasts resided until the the adoption of Digital Television (DTV) was also being used for FM audio broadcasts.
How does a video amplifier work in tv broadcasting?
it extracts the video signal amplify it & sends it to picture tube for display.
How do you hook up a xbox to a VCR then to the TV?
You don't want to do this. The VCR will make the video look like crap. Get something called an Audio-Video Switch. This is the best way to hook multiple devices to a tv. Also, DVD signal has a copy protection signal in it called Macrovision. You could go from the Xbox to the VCR then the TV using a device called a "Video Signal Stabilizer."
How do you convert s video to composite video?
You need a RF modulator to convert the signal to a (RF) TV channel. The audio and video quality will be lower doing this.
What is the difference between a coaxial and audio video cable?
A coaxial cable sends all signal down one line. All the color, brightness and audio is piped together to the television, where a signal converter is required to separate all the information to be displayed on screen. An audio/video, or RCA cable (Red-White-Yellow), separates the signal into three parts, video, the left audio channel, and the right audio channel. The TV then has to only convert the video signal into the colors and brightness. Since the audio is already separated from the video with the audio/video cable, there is one less conversion needed at the TV. This allows for better picture quality with audio/video cables. To put a number to it, audio/video cables give 20% better quality signal that coaxial. S-video is even better as is separates the video signal into color and brightness. Component is better yet, as it separates the colors from each other (Red, Green, Blue) and sends the brightness with the green signal. These are all analog methods of providing a television with signal. Digital methods like DVi and HDMI provide the best signal quality of all.
What is S video output?
It's another way to carry a video source. S-Video gives you a cleaner video signal than composite, but a lesser signal than component or hdmi. S-video does not carry an audio signal. The end of an S cable is round, and has many pins inside the end piece. S-video output on a device would allow you to run an S signal from the DVD player (or whatever the device is) to a tv.
Why would one need an HDMI splitter?
An HDMI Splitter is used to send video signals to many different devices that one may have and need to send a video signal to. If one has a computer and a television they ham use a HDMI Splitter so that they can get a video signal on the television as well as on the computer.
What is satellite receiver?
A satellite receievr, is a tv receiver, which connects to the satellite anntena, than to your tv, and decodes the information coming from the satellite signal into video and audio signal, so you can watch tv channels.
When an av signal is sent via coax what divides that signal into two separate audio and video signals?
Frequencies. Audio is usually DC- to 20 khz. and the video portion is around 4.5 Mhz. in which, the audio is part of the 4.5 mhz. video TV signal, FM in nature while the video is AM. Then it's up to the TV's circuitry to separate the two components and send them to the proper circuitry to decode them.
Can you plug it your directv to a projector?
It's a TV PROJECTOR it Projects any video signal that is hooked up to it.
What type of video card lets you capture video input and save it to a file on your hard drive?
Usually computer TV tuners allow you save video signal to your hard drive.
If tv stations now broadcast a digital signal why do cable providers still only send an analog signal?
So they can charge more for the better video and sound. Greed.
