When installing the parabolic antenna, it is generally installed according to the structure diagram provided by the manufacturer. The antenna structures of various manufacturers are basically the same. The structure of the antenna reflector has two types: integral forming and splitting (the reflector above 2M is basically splitting). The tripod mainly includes pole mount tripod and tripod (Pole mount tripod is more common), some 1.8 The tripod below meters is the Ground mount tripod.

How to install a satellite dish of Contents

Tools/Materials

Parabolic Antenna
feed
tuner
satellite receiver
Screwdriver and some simple small parts
tripod

Steps and methods

First, align the frequency of the channel received by the satellite receiver according to the satellite to be received. Some satellite receiver frequencies are displayed as the downlink frequency of the satellite channel 3.7GHz~4.2GHz, and some display the output intermediate frequency of the tuner is 950MHz~1540MH, which is the receiving input intermediate frequency of the satellite receiver. When this happens, the sub-satellite frequency of the satellite channel is obtained by subtracting the IF frequency from the local vibration frequency of the tuner 5150MHz.

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

Turn the antenna reflector to the south direction, loosen the elevation adjustment bar, and make the reflector adjust up and down flexibly and conveniently. Then, according to the longitude of the satellite to be captured and the geographic location of the tuning mode, turn the antenna reflector little by little to the east or west to change the azimuth of the reflector. After each turn of the azimuth, slowly adjust up and down and repeat this until the signal appears, confirm that it is the satellite program to be received, and then keep the signal strength temporarily fixed for the elevation angle, and perform the next step of azimuth adjustment.

Turn the reflective surface of the antenna horizontally in a single direction to observe the TV image. Make the captured satellite signal change from presence to absence, from strong signal to weak signal until the signal just disappears, draw a straight line up and down at the junction of the tripod tray and mark it perpendicular to the ground, and then reverse the antenna so that the satellite signal image is in the From weak to strong, and then from strong to weak in the TV, when the signal image just disappears, draw a straight line on the column extending downward from the azimuth tray mark. At this time, there are two straight lines marked on the column. Repeat the above steps several times, after confirming that the position of the second mark point of the column is correct, turn the azimuth tray mark to the position of the center line between the second mark points of the column, which is the azimuth position of the satellite to be debugged. Tighten the screws that fasten the azimuth angle, and the azimuth angle adjustment is completed.

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

Feed focal length and polarization direction fine-tuning: fine-tune the focal length and polarization direction by adjusting the azimuth and elevation angles. When the length of the feed is limited and the fine-tuning of the focal length is not suitable for the above method, the noise wave points of the TV image screen have been reduced or there are no noise points. , and then adjust the feed to observe the TV screen adjuster to minimize the noise, that is, to adjust the focus.

At this point, the system receiving and debugging is completed, remove the on-site debugging equipment, connect the coaxial cable between the tuner and the indoor receiver, if it is multi-house reception or enter the CATV system, install a power divider, and if necessary, install a line amplifier.