Solved! Why does my direct tv dish have 4 LNB

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Guest

Guest
why does my LNB on my direct tv have 4 lnb's? Do I need 4 to get HD or something? I leave in Green Bay WI.
 
Solution
the LNB is outset by 4 degree from one to the next to pickup the different sat. I know you need one for a foreign language channels.