How to adjust the angle of Gosbell satellite pot

No matter what pot, if the satellite signal quality exceeds 80%, it means that the azimuth and elevation of the satellite are basically correct. Which means you found the satellite.

If the quality is poor, there may be two problems.

One: The satellite parameters you entered are incorrect. Someone used other satellite data to input, of course, the signal is poor.

Two: it is estimated that the polarization angle of your tuner is wrong. In other words, you must rotate the tuner to the correct position. You can refer to the polarization angle of the satellite. There are calculation software on the internet, but it is for reference only.

The following is quoted from the Internet:

Causes and solutions of poor satellite signal quality

During the installation or use of satellite TV in Beijing, the received signal quality is often found to be poor, as follows: 1. The signal is intermittent, and sometimes the picture is mosaic. 2. The picture is unstable, and sometimes there are two pictures up and down. 3. Interrupt, unstable signal. 5. The voice is intermittent and turbid. When these phenomena occur, some people tend to focus on the satellite, thinking that the antenna is not well aimed at the satellite, and it takes a lot of time to adjust the antenna, but the result is still unresolved. In fact, there are many reasons that affect the signal quality, and we must analyze and eliminate them one by one to meet the requirements of debugging and receiving.

In debugging, we should first carefully check the supporting equipment and pay attention to every link of debugging and installation. We should understand and confirm the influence of local environment on the quality of received satellite signals, so as to avoid giving up all previous efforts.

I. Equipment inspection

1, digital receiver: You should choose a receiver with stable and reliable work, good after-sales service and good brand reputation. Novices should choose receivers with signal strength display, low threshold and excellent image quality. The function is not necessarily good, but it is very practical. A receiver with a high threshold usually cannot receive a weak signal, especially when the margin of other devices is not very large. For example, if receivers with different qualities are used in the same supporting equipment, the receiver with poor quality will not receive a weak signal, or the picture will be unstable and mosaic.

2. Satellite antenna: Satellite antenna is the key front-end supporting equipment that affects signal quality. The accuracy of satellite antenna is very particular. The quality of some different brands of satellite antennas is very different, even using large-caliber satellite antennas will not help. I don't know where the focus is, but I can't adjust it well. This kind of example is heard from time to time. In order to ensure excellent signal quality, the selection of satellite antenna should not blindly pursue small aperture or blindly believe in large aperture, but should pay attention to the accuracy and quality of antenna surface. As for the aperture of satellite antenna, as long as it meets the receiver threshold requirements for receiving signals.

3. Tuners: The quality of low-cost tuners is difficult to guarantee, and each batch is different. The quality problems of tuners are mainly reflected in unstable performance, such as local oscillator frequency drift, poor thermal stability, poor band consistency and low gain. In use, the signal will be unstable, flickering, some frequency bands are good, some frequency bands are poor, or even not received, and the quality of the received signal will be obvious. Therefore, when debugging, you should know the quality of the tuner used, and it is best to check it first.

4. RF cable and F connector: Although the cable and F connector are not key equipment, if they are selected carelessly or improperly, the signal quality will be affected. If the core wire of RF cable is too thin and the shielding net is too thin, signal leakage and attenuation will be great, resulting in signal quality degradation. The connection between F-head and cable should also pay attention to the process. If the connection is not good, it will cause a short circuit between the shielding net and the core wire, or an open circuit between the shielding net and the F head. If the waterproof treatment is not good, the wind, rain and sun will cause oxidation, and poor contact with the tuner will cause a significant decline in signal quality. In addition to selecting high-quality cables and F connectors, we should also pay attention to reliable connection and rain protection.

5. Various switches: when receiving multi-satellite or multi-household reception, switches are needed, such as: 0/ 12v, 13/ 18v voltage switches; 0/22KHz, DISEQC changeover switch; Various power distributors, line amplifiers, etc. The quality of these switches is uneven, and the signal loss of inferior switches is large, which seriously affects the viewing quality. It is also important to choose a good switch.

In short, there are many reasons for the deterioration of the received signal due to the poor material of the instrument, and compared with the high-quality equipment, the quality of the received signal will be clearly reflected immediately, while some people tend to ignore these small auxiliary equipment and adjustment technology, and the initial adjustment of the stars is not good, so we should calmly think about these reasons.

Second, the installation and debugging

1. After selecting high-quality equipment, the accuracy of the stars is the first level to determine the quality of the received signal, so you must be patient, especially for the first time in Andhadhun, where you are unfamiliar with the location and lack of experience. At this time, some auxiliary equipment can be used to adjust the stars, such as compass, star finder and inclinometer.

2. Try to avoid debugging in rainy days when looking for stars. Bad weather will cause a lot of signal loss. You also need to know whether there is sunspot interference and whether the clouds are too thick during debugging. It should also be noted that even when debugging in sunny days, the signal strength will be affected by the bad weather at the transmitting place of the signal source, or the debugging transponder just stops broadcasting, or the parameters have been changed. Although this situation is rare, it is sometimes a coincidence. For those who are inexperienced in satellite adjustment for the first time, you can use time-sharing method or debug other transponder programs.

3. When debugging, you should avoid obstacles in front of the satellite antenna, such as houses and trees. After determining the general direction with a compass, visually measure the distance of the obstacle in front of the antenna. If viewing is affected, the antenna should be moved to change its position.

4. When debugging, choose a group of transponders with the strongest signal in the satellite, and then fine-tune them to the best point after receiving the signal, so that the weak signal can be watched satisfactorily.

5. During debugging, we sometimes encounter microwave interference nearby, mainly in C-band. There are indeed various microwave signals in the frequency range of 3.4-4.2GHz. When the frequency of this group of transponders being debugged is close to the transmitted microwave frequency, interference will occur, which is commonly called co-frequency interference. In this case, the signal cannot be downloaded. The only solution is to add a metal shielding net in front of the antenna to absorb and isolate interference waves, such as effects.

The above reasons are often encountered in debugging, so we should carefully analyze them, eliminate them one by one, and avoid detours.

Among the small satellite antennas of Beijing Satellite TV, the antenna with rocker adjusting screw to change azimuth and elevation is the first choice, because the rotation is smooth and flexible, the debugging is not only easy, but also the accuracy is guaranteed. Unfortunately, this kind of antenna is rare and hard to buy. You can only choose the antenna with relatively good quality from the brands of common antennas, weave it slowly by hand, and then slowly fine-tune the signal and fine-tune the azimuth angle. You can use a socket wrench or adjustable wrench to slowly change the tightness of the left and right fastening screws (used to fix the back of the antenna and change the azimuth angle), and fine-tune the azimuth angle of the antenna by changing the tightness of the pitch of the left and right threads until the received signal is the strongest and the picture quality is the best. At this time, the azimuth and accuracy of the antenna should be relatively high. To fine-tune the elevation angle, you can put an inclinometer or protractor on the antenna, and you can directly see the degree when the elevation angle changes until the signal is the strongest. Finally, tighten the screws to fix the antenna.

After the star-finding debugging is completed, rain protection should be considered. Rain is one of the main killers of signal attenuation. The simplest way to prevent rain attenuation can be to use a plastic bottle, such as a 2-liter beverage bottle, and cut the bottom of the bottle into an oblique shape to cover the tuner, so that rain can't fall on the tuner. But when there is too much rain on the pot, the signal attenuation is still great. You can make a rain cover at the top of the antenna. If there is space on the balcony, you can also move the antenna to the balcony.