Receive satellite signal. Satellite signal ranges

The frequency is usually divided into so-called ranges (or sub-ranges), which are assigned their own designations.

That is, the signal coming from the satellite has a certain frequency, which in turn falls within the scope of the so-called frequency bands . For the reception of satellite television broadcasting mainly use two frequency bands: C and Ku . There are, of course, others, but you are unlikely to meet with them, so I will not dwell on them.

In order to understand what these ranges are, let's look as always with a simple example.

Imagine a car traveling on the road. Suppose that while driving, its speed varies from 10 to 100 km / h. And now let's divide our speed into ranges. For example, in the first range, this speed will vary from 10 to 49 km / h, and in the second, from 50 to 100 km / h . Here it turns out that the car changes its speed in two, let's call them low and high , ranges.

On the same bands, only radio frequency, share and satellite signal. So for example - C band (C Band), or Ku band (Ku Band). Below is a table of the frequency spectrum of the broadcast bands:

C - range - used on relatively old satellites. Ku - range, more popular for direct satellite broadcasting. About 95 ... 98% of viewers watch TV shows in it.

Explanation : Some terms placed further on the pages will not be clear for you to learn individually, you will need a lot of time and effort, and you will need some initial preparation. And it may happen that not everyone reads this topic to the end. Whatever happens, we will do it easier. Not familiar words, I will highlight in red , and you just need to remember them. There are not many such words here, so I think it will not be difficult for you. In any case, if you forget, you can always go back and go over the familiar words again.