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Author: Subject: Tv channels and questions
Yttrium2
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[*] posted on 13-10-2015 at 21:27
Tv channels and questions


How does that radio frequencies and oscillating waves and what not make sound and picture come from a television?

Are there a lot more channels that my television could pick up if I had a certain antenna?

How come I don't get channels from around the worlx?

How exactly is audio and video broadcasted?

What kind of equipment puts a video or sound out into the air?
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Detonationology
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[*] posted on 14-10-2015 at 04:02


Static on a television screen is the said to be the afterglow of the Big Bang.



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Fulmen
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[*] posted on 14-10-2015 at 04:14


https://en.wikipedia.org/wiki/Broadcasting



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Sulaiman
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[*] posted on 14-10-2015 at 04:31


Detonationology, an urban myth, the cosmic background noise level is well below other noise sources,
the following applies to simpler analogue video TVs;
unplug the antenna to see the noise level of the electronics
plug in antenna, tune to a 'quiet' channel to see
electronic + atmospheric + rfi noise + breakthrough of other channels

For a good start, have a look at the wikipedia article 'Television' https://en.wikipedia.org/wiki/Television

Before asking such questions it would be polite to do a little research of your own first, then ask specific questions,
what you asked for is so broad that no one would spend the time to fully answer, certainly not me.
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[*] posted on 14-10-2015 at 05:55


My grandpa's TV used to have an antenna and would get a bunch of static when the microwave was cut on; then he got digital TV :P



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