How to adjust the angle of the satellite dish!!!

<> "The adjustment of the angle of the satellite dish is usually determined based on the position of the satellite to be connected and the strength of the satellite signal to be connected. Here are the detailed adjustment steps:1

Determine the location of the satellites you want to connect to, as well as the satellite signal strength. You can check the signal strength by looking at the satellite positioning tool or the satellite signal strength meter. 2.

Determine the orientation of the satellite dish. This can be determined using a compass or satellite positional indicator. 3.

Adjust the horizontal angle of the antenna so that it is pointing in the correct position. 4.Adjust the vertical angle of the antenna to ensure that the antenna is pointing at the satellite altitude angle.

5.Adjust the fine angle of the antenna according to the signal strength so that it aligns with the satellite signal. 6.

When you're done adjusting, lock the satellite dish and check if it's working properly. Precautions: When adjusting the angle of the satellite antenna, you should pay attention to safety to avoid the antenna collapsing or personnel being injured.

It is advisable to have a professional or guide when making adjustments.

Satellite Antenna Elevation Angle Adjustment Method:

First determine the approximate position of the antenna azimuth, the elevation angle is not fixed, repeatedly adjust the elevation angle, after each elevation angle, turn the azimuth eggplant dry angle, and see if the signal quality has changed, as long as there is a small change to indicate that the satellite signal is captured, and then carefully adjust the azimuth angle and elevation angle, when the signal quality reaches 30%. Finally, it is necessary to adjust the polarization angle of the high-frequency head and the focal length of the high-frequency head, the polarization angle is equal to the satellite diameter minus the local diameter, the zero degree of the high-frequency head is in the horizontal position, there are a few high-frequency heads on the scale is a vertical scale, the zero degree of the high-frequency head is vertically downward, as long as the adjustment is careful to achieve the best state, there is a pole and a fastening screw wire that can be adjusted up and down on the antenna base, and it can be tightened after adjustment.

Different regions, angles and directions are different. The adjustment degree can be measured according to the following method.

1. Simply understand the principle of satellite TV, there is something (satellite) in the sky that is sending us a signal (radio and television signal), and use this pot in your hand (the outdoor *** receives the signal it sends and transmits it to the TV set at home.

2. First of all, we must know which satellite method to use, there are many ways, I will try to list a few more here for your reference [special circumstances] If you have not moved yet, you can first use a compass (mobile phone ** compass software) to record the direction of the current receiver, and you do not need to understand the satellite information;

3. Turn on the TV, enter the search, program information related settings, see similar satellite names ("Zhongxing 9", "Zhongxing 6b") is, all satellite names can be found on ** (Chinese Star Finder Network); Check the original program parameters on the TV (find a random TV program), compare with the program parameters on the Chinese Star Finder Network, which star has the same parameters as that star, as shown in the figure below "Satellite Parameters of "Hunan Satellite TV";

4. Call ** to ask for after-sales, people don't give free transfer, ask which satellite is not good? What I have learned is that the following two are generally used in rural areas today:

Zhongxing 6b ("cauldron").

Zhongxing No. 9 (Huhutong, "small pot").

According to this rule, the big pot first tries Zhongxing 6b, and the small pot first tries Zhongxing 9.

5. The longitude of the satellite can also be queried on the Chinese satellite search network. Since they are geostationary satellites, they are all at the equator, so the latitude is 0. There is no need to check the two commonly used satellites: Zhongxing 6b: Zhongxing 9:

6. Understand the azimuth and elevation (or downward inclination) This is equivalent to looking at the moon in the sky, if the moon is behind you, you need to turn around (adjust the azimuth), and then look up (adjust the elevation angle) and then put on two professional pictures.

<>7. As long as we use the "Satellite Director" to select the satellite to be located, it can correct the direction (adjust the azimuth) for us in real time; For the elevation angle, I personally feel that it is not necessary to calculate so accurately in actual operation, first adjust the azimuth angle, and slowly adjust it up and down on the basis of a roughly 45-degree angle.

8. Adjust the azimuth angle of the mobile phone to turn on the satellite director, enter the state of real-time correction to ensure that the direction of the mobile phone is consistent with the reflective surface of the first place, there are two recommended practices: first, the mobile phone is close to the device (high-frequency head) connected to the middle of the pot; Second, the phone is placed directly below the pot;

<>9. Adjust the azimuth angle and adjust the elevation angle slowly. Test open the TV and set-top box to see if you can broadcast TV programs.

There's an angle calculation software on the Internet, you can look for it, it's easy to get it! It is best to have more than meters in the C section, and the rice in the ku section is fine.

All communication satellites are located over the Earth's equator, but the longitude is different, with the equator as the dividing line, with the satellite antennas in the northern hemisphere facing south, and the satellite antennas in the southern hemisphere facing north. In the northern hemisphere, the satellite antenna is due north to zero degrees, due south is 180 degrees, increasing clockwise, and as for the azimuth angle is determined by your location, the calculation of the azimuth angle can be solved by the receiver, there is a guide to the star, enter the latitude and longitude position where you are, and then enter the longitude of the satellite, and the receiver will calculate the azimuth angle that the antenna needs to adjust.

Principle: First of all, the geosynchronous orbit where the satellite is located is divided by the center of the earth as a dot, and our satellite television receiving station is built at various points on the earth's surface, although the synchronous satellite is nearly 10,000 kilometers away from the earth's surface, but the radius of the earth is also more than 6370 kilometers, see Figure 1, so that when receiving the signal of one satellite to receiving the signal of another satellite, the adjustment of its azimuth angle and elevation angle is not realized according to the above method, it is only a reference, The specific angle is determined by the calculation (the calculation method has been introduced in many articles, but this article will omit). As shown in Figure 1, point a, when receiving the signal from the two satellites, although the two satellites are 5 degrees apart.

The difference in azimuth between the receiving antennas is greater than 5°, but the difference in azimuth between the two satellites is less than 5° when the signal is received at point B. In addition, the height and magnitude of the elevation angle of the satellite receiving antenna are not determined by the parameter of the synchronous orbit position of the satellite, but by the longitude, latitude and longitude of the earth station. In the case of similar longitude of the receiving station, the smaller the latitude of the receiving station, the greater the elevation angle of the receiving antenna.

Just like Lhasa and Urumqi, which are located at about 90 degrees east longitude, Lhasa is near 30 degrees north latitude, and Urumqi is about 43 degrees north latitude, and they receive signals from the same satellite, and the elevation angle of Lhasa's antenna is greater than that of Urumqi. At the same time, in the case of similar latitudes, the smaller the difference between the local longitude and the longitude of the satellite in orbit, the greater the elevation angle of the antenna. China's territory spans the area of 75°E-135°E, and each satellite ground station can receive signals from multiple satellites.

Take Chongqing as an example, Chongqing is located at 30 degrees north latitude, near 105 degrees east longitude, when receiving the Asian 3S satellite signal, its antenna elevation angle is the largest, and when changing to 134 °E Asia-Pacific 6 satellite signal, in addition to adjusting the antenna orientation to the east, it is necessary to adjust the antenna elevation angle, that is, to lower the antenna.

Azimuth azimuth a=180°+arctg

Elevation angle H = arctg

cosβ=cosφcos(x－z)

z is the longitude of the satellite to which the antenna is pointed;

x is the longitude of the ground station;

is the latitude of the ground station;

r is the radius of the earth;

h is the satellite altitude;

r/(r+h)=。

It is calculated that the elevation angle of the antenna receiving the Asia 3S satellite in Zhoukou City is 5034°, and the azimuth angle is 162° southward.

Longitude: East Longitude Latitude: North Latitude.

Zhongxing 9 South-West Longitude: East Longitude Latitude: North Latitude.

Zhongxing 9 south-westward.

This paper introduces a system debugging method without knowing the azimuth and elevation angle of the satellite and without debugging instruments. System debugging must take the receiver and TV to the installation antenna site for debugging, and there must be a power supply at the installation site. After the above preparations are completed, the next step is to debug the system, and the steps are as follows:

1. First of all, according to the satellite to be received, adjust the channel frequency received by the satellite receiver. Some satellite receiver frequencies are displayed as the downlink frequency of satellite channels, and some are displayed as the output intermediate frequency of the high-frequency head 950MHz 1540mh, that is, the receiving input intermediate frequency of the satellite receiver. In this case, subtracting the MF frequency from the mid-frequency frequency of the high-frequency head 5150MHz gives the satellite down-satellite frequency of the satellite channel.

2. Receive all the connecting lines, adjust the feed coarsely according to the polarization mode of the signal to be received, and adjust the direction of the waveguide port of the feed according to the polarization requirements.

3. Turn the reflective surface of the antenna to the south, and loosen the elevation adjustment lever to make the upper and lower adjustment of the reflective surface flexible and convenient. Then, according to the longitude of the satellite fixed point to be captured and the geographical location of the modulation location, the antenna reflective surface is rotated to the east or west to change the orientation of the reflective surface. After each rotation of the azimuth, slowly adjust it up and down and repeat until the signal appears, confirm that it is the satellite program to be received, and then keep the signal strength temporarily fixed at the elevation angle, and carry out the next step of the azimuth fine-tuning.

4. Rotate the reflective surface of the antenna horizontally in a single direction to observe the TV image. Make the captured satellite signal from there to nothing, from strong signal to weak signal to signal just disappear, draw a straight line up and down at the junction of the tripod tray and make a mark perpendicular to the ground, then reverse the antenna, make the satellite signal image in the TV from weak to strong, and then from strong to weak, turn to the signal image just disappear, draw all the way on the column that extends downward at the azimuth tray mark, and there are two straight lines on the column at this time to make a mark. Repeat the above steps several times, after confirming that the position of the two marking points of the column is correct, the azimuth tray marking is transferred to the position of the center line between the two marking points of the column, and this is the azimuth position of the satellite to be debugged.

The screws that fasten the azimuth are firm, and the azimuth is debugged.

5. Fine-tune the elevation angle: use the method of fine-tuning the azimuth angle, take two points on the elevation adjustment rod as a mark, and use the same method to fine-tune the elevation angle.

6. Fine-tuning of feed focal length and polarization direction: Fine-tune the focal length and polarization direction by adjusting the azimuth angle and elevation angle. When the feed length is limited, and the focal length fine-tuning is not suitable for the above method, the noise pol point of the TV image picture has been reduced or there is no noise point at this time, the dot paper can be stuffed in the feed to make the picture appear more noise points, and then the feed is adjusted to observe the TV picture to reduce the noise point to the minimum, that is, the focal length is adjusted.

7. At this point, the system is received and debugged, the on-site debugging equipment is removed, the coaxial cable of the high-frequency head and the indoor receiver is connected, and the power divider is installed on the side of the multi-household receiving or CATV system, and the line amplifier is installed if necessary.

Don't settle it yet. Take the pot off. The receiver is connected to the TV, and the receiver is preset with a lot of programs, find out one. Then move the pot forward, backward, left, right, and left. When the signal appears, it is aligned.

Don't check what latitude and longitude. It can also be used,

How many channels can a satellite dish receive?

It depends on which satellite you aim at and which satellite model you receive. Generally, it receives Asia 3s, and can receive forty or fifty units.

I saw a friend buy a satellite dish for a few hundred dollars, but I can't watch some of the channels, it is said that it is encrypted, and I can't watch it!

Yes, many channels are encrypted, such as **3 sets, and 5 sets, which belong to the toll channel, there is a card receiving and decoding machine, which can decrypt several units, but not all of them can be solved, and it is very expensive.