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Configuración dun sistema de recepción de TV vía satélite

2021-04-23

Configuración dunSistema de recepción de TV vía satélite


As conexións Cable de puente RG6 tipo F é ideal para TV de satélite dixital de alta definición.

 OSO sistema de recepción de televisión por satélite está composto por unha estación emisora ​​de enlace ascendente (transmisión por enlace ascendente), un corpo estelar por satélite (un transpondedor transmitido por satélite) e un receptor de terra (estación receptora de enlace descendente).


1) Ouplink transmitting station can be a fixed large-scale ground station or a mobile ground station. Oprogram signal and audio signal are sent by a directional antenna, which is processed and amplified and sent to the satellite transponder. In addition to other uplink stations, the main uplink station has two tasks. One is to provide programs to the stars, and the other is to receive downlink signals from the stars to monitor the quality of the programs and the satellite operating attitude, and randomly send correction instructions to the stars through the uplink station to change the satellites. Adjust the antenna and switching equipment to ensure the normal operation of the system.

2) Osatellite-borne transponder converts the received uplink signal into a downlink FM signal, which is amplified and transmitted to the ground by a directional antenna.

3) Oground receiving station will receive the downlink FM signal forwarded by the satellite, and then undergo frequency conversion and demodulation, and then send it to the cable television (CATV) system. Oabove composition is the basic front-end of the satellite TV receiving system and the cable TV receiving system. composition.

(2) OCO sistema de televisión capaz (CATV) está composto por unha parte receptora, unha parte frontal, unha transmisión central e unha rede de distribución.

1) Parte receptora:Principalmente recibe sinais de microondas vía satélite a través de antenas parabólicas de alta ganancia.

2) Parte frontal:consta de conversor descendente (cabeza de alta frecuencia LNB) e receptor de TV vía satélite.

Ofrequency down converter is to reduce the satellite microwave radio frequency signal (C band, the frequency is 3.7~4.2GHz) received by the antenna to the intermediate frequency signal, the frequency is 970~1470MHz. Oequipment is mainly composed of a low noise amplifier and a down converter. .

Ofunction of the satellite TV receiver is to restore the satellite TV signal into images and sound with standard TV interface level parageneral TV viewing.

3) Transmisión do maleteiro: Ofunction of the trunk transmission part of the CATV system is to transmit the high-frequency TV signal output by the front-end part to the input port of the system distribution network without distortion, and the output level signal should meet the requirements of the distribution network system. Commonly used trunk lines include coaxial cable transmission and optical fiber cable transmission.

4) Rede de distribución: A súa función é transmitir o sinal de TV de alta frecuencia proporcionado polo extremo frontal ao divisor a través da liña principal e despois ao distribuidor do terminal para a visualización da TV dos usuarios.

 

Connexions Technology ofrece unha calidade fiableCable de puente RG6 tipo F Cable coaxial paraCATV, CCTV.