The antenna tracking feed system is a core component to ensure stable satellite communication and signal reception. The setting process covers the azimuth adjustment of the antenna, the optimization of feeder parameters, and the precise correction of the feeder position. This article will discuss in detail how to correctly set up the antenna tracking feed system around these aspects.
1. Antenna azimuth adjustment
Antenna azimuth adjustment is the first crucial step in the antenna tracking feed system. During the setting process, the standard-level signal must first be sent out through the transmitter to ensure that the signal strength meets the design requirements. At this time, the azimuth of the main antenna should be adjusted so that the receiving level meets the predetermined standard. Once the main antenna is adjusted to the appropriate angle and the received signal meets the standard, fix the main antenna and adjust the diversity antenna. The role of the diversity antenna is to enhance the stability of the received signal and improve the overall performance of the system by reducing multipath interference.
2. Feeder and related parameter settings
The tracking feed system is an important transmission path connecting the antenna and the device, and its attenuation value directly affects the signal quality. Therefore, when setting up, it is necessary to ensure that the feed attenuation value is not higher than the design requirements to avoid reception quality degradation due to attenuation of the signal during transmission. At the same time, it is also necessary to carefully check whether the feeder has collision, deformation due to force, and other problems to ensure the integrity and stability of the feeder during transmission. The matching of the feeder connector is also an important inspection point. Loose or bad connectors may cause signal loss or interference.
In addition, air pressure setting is also the key to the debugging of the tracking feed system. Antenna feed usually needs to be inflated to keep the system well-sealed and avoid the influence of the external environment on the signal. The inflation pressure value should be set to 13 kpa, and after the system has been working for 24 hours, ensure that the air pressure is not less than 11 kpa.
3. Feed position correction
The correction of the tracking feed position is the last step to ensure the efficient operation of the antenna system. The focus position of the antenna can be accurately determined by special detection devices (such as brackets, reflectors, and parallel projection light sources). The antenna feed should be located at the focus of the parabolic reflector to ensure the best signal focusing and reception effect. During the correction, any deviation may cause a deviation in signal reception, thereby affecting the performance of the system.
Conclusion
The setting of the antenna tracking feed system is a highly technical and meticulous process. By properly adjusting the antenna azimuth, setting the feeder, and correcting the feed source position, the signal reception quality and system stability can be effectively improved. In actual operation, be sure to refer to the equipment manual and the guidance of professionals to ensure that each step of the setting is accurate.