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IBN Alignment

  • 18-05-2015 2:02pm
    #1
    Prisoner6409
    Registered Users, Registered Users 2 Posts: 666 ✭✭✭


    From another thread you may have seen I had an issue with my Satalite signal, it was dropping out. Thinking it may be dish alignment I went up the ladder to have a look. While I was looking at the feeds coming from the LNB I noticed some writing on the side of the LNB, small straight lines and MAX written to one side. MIN might have been written on the other side, I could not see. I also noticed the LNB itself could be moved quite easily in a kinda circular movement so that the lines beside MAX could be aligned up with a line on the static part of the LNB. Is this part of the alignment process. From watching youtube videos they all talked about aligning the dish, I was lead to believe it was the placement of the disk and where it was placed and pointed that was the main part of alignment. None of the videos I watched even discussed the Max/Min settings on the LBN itself.

    PS I hope I have explained this sceanario so that it can be understood. I am a complete newbie when it comes to all things satalite, it is my first foray into a diy situation.


Comments

  • #2
    Thurston?
    Closed Accounts Posts: 2,278 ✭✭✭Thurston?


    LNB skew should be adjusted to align its aerial probes correctly, to give best descrimination between signals of horizontal & vertical polarity. (These little aerials are hidden inside.)

    The LNB should not be able to be moved 'quite easily'.


  • #3
    Prisoner6409
    Registered Users, Registered Users 2 Posts: 666 ✭✭✭Prisoner6409


    Thurston? wrote: »
    LNB skew should be adjusted to align its aerial probes correctly, to give best descrimination between signals of horizontal & vertical polarity. (These little aerials are hidden inside.)

    The LNB should not be able to be moved 'quite easily'.

    Brilliant, I think that was the root cause of my problem. I had heard(or seen)the term before but had no idea what it referred to. I'm nearly sure now the cause of my issue is the fact that the LBN itself became loose over time and was moving slightly during bad weather, high winds ect and so intermittently losing the signal.


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