Once upon a time, at homeInstall a 'satellite pot'You can watch dozens of TV channels for free, and I don't know how many people's memories it is.Nowadays, "satellite pots" are banned, which inevitably arouses everyone's curiosity

Once upon a time, at homeInstall a 'satellite pot'You can watch dozens of TV channels for free, and I don't know how many people's memories it is.

Nowadays, "satellite pots" are banned, which inevitably arouses everyone's curiosity. Why is such a "user-friendly" thing "banned"? What exactly can it receive?

Satellite cooker is a high-end technology

satellite television.

satellite televisionThe working principle of high-definition television services that utilize satellites for signal transmission involvesSignal transmission, reception, conversion, and decoding.

,satellite television.

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Next, the communication satellite receives the microwave signalAnd magnify it,.

These re transmitted signals are calledDownward wave,,,.

So,Satellites can transmit program signals from multiple channels simultaneously.

Abovegroundsatellite television,Downward wave.

Downward wave.Downward wave,.

,.,,Perform filtering and other processing,.

Subsequently, the signal is converted into a baseband signal, which is a type ofAnalog signals containing video, audio, and other data.,,.

Finally, the digital signal is output to the display device through the video output port connected to the TV or decoder,Realizing the playback of high-definition television.

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So, when we used to watch TV, we thought it was very simple, but in fact, there was a trick behind itComplex operational processes.

Why is it banned?

One of the reasons why the country has banned satellite pots is that their complex reception process can sometimes lead toMisacceptance of foreign channels.

,satellite televisionNumber of channels,,.

But in some sunny and cloudless weather or occasional situations, those who areSealed TV Channel,.

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But there are also significant risks involved, becauseForeign media is mixed,.

satellite television,,,,.

In addition, some foreign media may not have as much restrictions on film and television, and there may be someDisgraceful or bloody violence,,.

Let's think about it, if these might appear on the TVBad imageDare you still watch TV for your child?

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In addition, once some illegal elements see their interests in the satellite pot, they willResale illegal satellite pots from outside.

Many ordinary people have the idea of seeking small bargains, thinking that the things sold by small stalls are cheap,You may accidentally buy an illegal satellite pot.

Can't underestimate satellite pots

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As the satellite signal is directly connected to the satellite, this connectionDifficult to intercept by the state,.

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When windy weather comes, satellite pots oftenFlying with the Wind,It's easy to hit people.

,,,.

,The group of pots dancing wildly,,.

Shattering and falling

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,satellite television,Dilute in our view,.

References:

Li Yu, China Radio, Film and Television Publishing House, "The International Communication Path and Strategy of Television in the Digital Era"

Sun Xia. Principles of Telecommunications Transmission, published by Xi'an University of Electronic Science and Technology Press

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