How to Set up an LNB

Written by allen coleman | 13/05/2017
How to Set up an LNB
The LNB is located on the end of the arm coming from the satellite dish. (Jupiterimages/ Images)

A satellite dish is designed to retrieve information from a satellite in space, but the information will never get to your television without the LNB. The LNB, or Low Noise Blocker, sits at the end of the arm that is extended from the dish and points back to the dish. The dish will gather the information from the sky, but it's the LNB that pulls in the information and sends it to the satellite receiver connected to your television.

Connect the end of the coaxial cable or cables that are running to the dish to the cable jack on the LNB by twisting the end of the cable clockwise until the connection is secured. There are several different styles of LNB's on the market and some have more then one connection for the coaxial cable to run more then one television. Connect one coaxial cable to each connection on the LNB.

Slide the LNB onto the LNB arm that extends from the dish by carefully feeding the slack of the coaxial cables back into the arm until you have room to slide the LNB onto the end of the arm. The LNB and LNB arms have bolt holes to secure the LNB to the arm. Slide the LNB onto the arm until the bolt holes line up.

Place the bolt or bolts that came with the LNB through the bolt holes. Twist on a nut to the bolt and tighten the bolt as tight as you can get it. Some LNB's have a single bolt hole; others have multiple bolt holes. Repeat the process for each bolt hole.

Things you need

  • Phillips screwdriver
  • Adjustable wrench
  • Coaxial cable

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