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Thread: Declination Angle

  1. #1
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    Declination Angle

    I live at Location
    Latitude: 26.4036
    Longitude: -80.2061



    What is the correct declination? Is there a calculator? I am using a polar mount on a 7.5 mesh dish.

    Correct me if I'm wrong but the main bar in the middle of the mount, should that be set to my Latitude?

    Thanks

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  3. #2
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    There's a handy chart on this page


    C-band Satellite Installation





  4. #3
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    . . . and it's all discussed on
    Geo-Orbit


    , too.

    Using the lower table, I get about 3.866 .?.
    See if that agrees with the other site Greg listed above. (I may have made a mistake) -

    edit:
    Other site says 3.87 , so we seem to agree.

    Last edited by Anole; 09-03-2009 at 06:00 PM.
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  5. #4
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    I was wondering just how accurate does the declination and elevation angles have to be. But, since these are just starting points, both can be fine tuned to get the greatest accuracy.

  6. #5
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    in this order?

    The pole must be plumb!
    The declination is set correctly once, and left alone.
    If you need to fiddle with elevation, check your LNBF centering on the dish.
    Twist the mount on your pole to bring in the ends of the arc.
    Don't forget to focus, and adjust the f/d (scalar).
    Oh, and skew, too.
    Straight Talk on AT&T iPhone 4, iOS 5.0.1, BB 3.10.01.
    restoring broken iPhone 4S, iOS 6.1.3, BB 3.4.03.

    : BirdView 8' solid & GBox V3000.
    :
    AMCI 8' perf (maybe a DH?) & AJAK-180.

  7. #6
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    If you watch those boresight videos you will pick up that the angle settings are just a starting point. If you go to one extreme of travel you adjust the azimuth. At the top of travel you adjust the elevation.
    Watch this video

    http://boresight.ripco.com/



    Shaun Kenny - Tracking Made Easy (TRT 00:15:15)

    That's why spending a ton of dough on digital angle gizmos is a waste of time and money. Eventually you are going to discard them and get into tweaking and adjusting.

    Last edited by Greg Mueller; 09-05-2009 at 10:56 AM.

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