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This should be classified.
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The frequency of the satellite band is not the same, the ku head you buy should have instructions, there are 9750, 10600, 10750, 11300, you can use a universal receiver to receive, as long as you use the high-frequency head to receive the satellite signal covering the area and use a large enough pot on the line But as long as it depends on the satellite you want to receive the satellite signal is that!
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There are 9750, 10600, 10750, 11300 and 138 ku, the local oscillator frequency is 11300 for details.
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Since your antenna is receiving Asia 4, the antenna diameter will not exceed 45cm, so there are two options according to your requirements:
1 Buy a special receiver for Zhongxing-9 (** about 150 yuan) to receive the Zhongxing-9 satellite, which has 44 sets of free programs.
2. Take out the polarization sheet in the high-frequency head (save it for later use) to receive a set of domestic signals from the Great Wall platform of the 138° satellite, the parameters are: 12537 vertical 41248. There are 11 sets in total.
Free programming. You can go to this ** to find out the elevation and azimuth angles of the antenna installation location according to the satellite you want to receive. You need to sign up for free. Go to this ** to get the parameters of the satellite.
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1 for a special receiver in the nine to watch the star 9, there are more than 40 domestic stations 2 to watch the Asia-Pacific 2r, there are not many stations, only a dozen free stations, and they are all Taiwan's stations, I don't know if you can adapt;
3 Watch 138 Asia-Pacific No. 5, watch the programs of the Great Wall platform, there are only a dozen stations, but they are all domestic stations.
There is nothing to see in other free ku, and if you want to watch a good station, you can only replace all the high-frequency heads and machines, and use DM500 to go, so that you can see more exciting programs. There is no need to change the high-frequency head, as long as the receiver is adjusted to 10750, it can be received.
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Elevation angle of the 122° antenna of the receiving Asia 4 satellite in Anshan: Azimuth: Elevation angle of the Asia-West Asia satellite in Anshan antenna: Azimuth: west-south.
It can be seen that it is not the same through comparison. The adjustment is the same for the fed and round antennas.
Receiving Asia 4 satellite, the local oscillator frequency of the high-frequency head needs to be 10750 or lower than 10750, preferably the circularly polarized high-frequency head, and the receiving parameters are: 11707 11804 11881 11958The symbol odds are all 24440.
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If it is a partial feed, that is, if you use a cauldron to collect the ku band, you don't need to adjust the elevation angle of the pot.
Sub-4 is very good, if you take the middle 6, it is just to the west of the middle 6, next to the middle 6, and the signal is very strong.
If it's a sub-3s, and so on.
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In general, the parameters can be used to determine the local oscillator using the high-frequency head.
For example, the C-band, the parameters are generally 4 digits, the local oscillator is 5150, and the double local oscillator is 5150 5750.
For example, 3771 level (h) 9375 and 3771 are the downlink frequency.
The ku band is generally 5 digits with a frequency of GHz. The common ones are etc. If you don't know what kind of ku high-frequency head to use, do the math.
The downlink frequency minus the local oscillator frequency and the input frequency (generally 950-2150MHz), the input frequency is generally marked on the high-frequency head, look at it yourself...
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The frequency of this oscillator is only a parameter of the high-frequency head, and the equipment that receives the No. 4 Asia can only receive a set of signals from the 138 Great Wall platform (there are 11 sets of free programs in China), and the parameters are: 12537 vertical 41248. Or 134 educational channels (3 sets of free programs) parameters are:
12395 Vertical 27500.
30 cauldron to receive 138 is a bit small, you need to take out the polarizer in the high-frequency head, because the polarizer will have a loss of nearly 3db in it.
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The small pot of 30 is also called the ku pot, and it seems that it can only accept the ku band, and the C band seems to be not. The frequency of a single local oscillator is 5150, if the frequency of a double local oscillator is
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There are basically no TV shows, and since the closure of Tianlang, Yasi Ku has no ratings value.
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Take a look here, which satellite has it:
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In general, the parameters can be used to determine the local oscillator using the high-frequency head.
For example, the C-band, as the saying goes, is a cauldron, and the parameters are generally 4 digits, with a local oscillator of 5150 and a double oscillator of 5150 5750.
For example, 3771 level (h) 9375 and 3771 are the downlink frequency.
As the saying goes, the ku-band is a small pot, generally 5 digits, and the frequency is GHz.
The common ones are etc. If you don't know what kind of ku high-frequency head to use, do the math.
The downlink frequency minus the local oscillator frequency, etc. is the same as the input frequency (generally 950-2150MHz), and the input frequency is generally marked on the high-frequency head.
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The field strength of 122 is enough.
Check if there are any problems with the settings.
Or maybe it's not aligned with the satellite.
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Totally fine, the pot will do. To receive Asia 4 with the Zhongxing 9 HF head, you have to change the polarization of the receiver to vertical. The downward frequency of Asia No. 4 is: 11727 11804 11881 11958, and the sign rate is 24440
Your elevation angle is: Azimuth: south-east.
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Now many special aircraft with the first device parameters in the ordinary machine is not detectable signal, before 122 has a stage to open free programs, that is, with 10750LNB leaning on the right side of the 6B high-frequency head, the signal will come out. The signal can also be adjusted to 122 by changing the data of the ** device with the middle nine machine and the circularly polarized high-frequency head!
The 122-degree satellite moves eastward on the basis of the direction of the star 6b in the degree, and is west-south-west between the middle 6 and Xinsan, which is closer to the Xin3, that is, the southeast position of 122 east longitude.
Click OK and it scans and stores most of the programs very easily. As for the downlink frequency and symbolic rate, it is only used to search for a certain range of programs and adjust a specific program. And sometimes they change.
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Use the 10750 high frequency head to place it on the west side of the middle 6. Adjust the elevation and azimuth angles, and the polarization angle does not move. The azimuth is 180 degrees south (with a compass) and the elevation level is 0 degrees (with a protractor).Asia No. 4 is 122 degrees, with fewer C-band stations and more Ku-band stations.
For program parameters, please refer to Asia Satellite TV Chinese Network Link.
Resources. Asia Four has both C-band and Ku-band TV programs.
The C-band can use high-frequency heads with a local frequency of 5150 or dual local frequency of 5150 or 5750.
The KU band can use a high-frequency head with a local oscillator frequency of 10750. Or a high frequency head with a double local oscillator frequency of 9750 10600.
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