What is the signal from the camera?

1. The signal from the camera is an electromagnetic wave signal. It's just that the frequency of the signal is different and the carrier is different. Signals can be processed and propagated at different frequencies. Therefore, it is necessary to interpret the signal after receiving it. Because after receiving the signal after the frequency processing of signal propagation, you must know the information propagated by the signal and understand the processing method when sending the signal before you can interpret it. That is, decoding.

2. There are two possibilities: whether the live broadcast of foreign games is filmed by CCTV or by buyers. As long as you can read the signal.

3. We know that because it is a live broadcast, the signal from the camera should be fed into the editing machine immediately. Then how can CCTV broadcast the foreign games synchronously, because people send the signal to CCTV via satellite or optical fiber, and then CCTV will put the program on the satellite for local TV stations to receive synchronously?

it takes time for signals to spread, so the time for receiving signals in different places is determined according to the propagation distance. For specific examples, it can be based on the broadcast time (a certain time) of CCTV news broadcast stations, such as Fujian TV and Xinjiang TV. Xinjiang Taiwan Association is relatively backward.

4. what about the time difference change in the process of various live broadcasts?

because the speed of light is the fastest. There is no specific solution at present. It is estimated that this problem will be solved when the space-time machine is made.

5. I also want to ask the camera-editor-whether the signal should be converted. Please tell me what machines are used for small and large live broadcasts and how are their wires connected?

I don't understand this. The questions answered above are my answers based on my physics knowledge in middle school. Please bury the mistakes and correct them. thank you

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