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  1. #1
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    Default montura polara antena offset

    salutare,
    am o antena offset de 1,4 m din fe cumparata de la mst si vreau sa-i pun o montura polara... ma poate ajuta cineva cu un model de montura pt aceasta antena si de unde o pot achizitiona
    merci
    TV LCD TOSHIBA fullHD 82", DM800+1.4m offset MST-tabla cu 4 lnb+ toroidala cu 12 lnb =>>> acces 53est-5vest

  2. #2
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    Last edited by wasexx; 10th January 2010 at 14:52.
    http://uploadimage.ro/images/04034302560823760342.jpg

    Cumpara de la PcGarage folosind acest voucher : VPT7KWLZ si beneficiezi de 1% reducere !

  3. #3
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    mda... ceva mai concret o montura, o poza?
    TV LCD TOSHIBA fullHD 82", DM800+1.4m offset MST-tabla cu 4 lnb+ toroidala cu 12 lnb =>>> acces 53est-5vest

  4. #4
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    Default


  5. #5
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    Default

    Si aia e montura polara ?
    De ce ii spune polara ?

  6. #6
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    Ca sa se mire .... gabrielD ....

  7. #7
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    Default

    Am uitat ca tu n-ai treaba cu staelitii, tu esti offtopic.

    Eu doar incercam sa arat ca cineva a vrut o montura polara si altcineva il indruma gresit.

  8. #8
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    Hai , hai termina , daca nu stii ce e o montura polara , du-te pe Offtopic , aici e arie de oameni seriosi .


    E ultimul avertisment aici , orice post offtopic va fi mutat acolo .

  9. #9
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    Quote Originally Posted by gabrield View Post
    Si aia e montura polara ?
    De ce ii spune polara ?
    Explanation of satellite antenna polar mount


    For conventional azimuth/elevation mounts (sideways and up/down) please refer to satellite tv dish pointing page which has links to pages about the meaning of elevation and azimuth angles.
    A polar mount is designed to allow all visible geostationary satellites to be accessed by swinging the antenna around one axis (the main axis). This allows one positioner or actuator only to be used to remotely point the antenna at any satellite. Polar mount installation involves pre-setting the two fixed angles shown here. The Main axis angle has a range of movement of approx 90 deg. The antenna swings sideways around this axis. The Dish Offset tilt angle is the amount by which the beam it tipped downwards slightly. This angle is less than 9 degrees. Both of these angles are predetermined exactly by calculation, but it is rarely possible to set the angles with sufficient accuracy (~0.2 deg) using scales and protractor. There is a tendency for dishes to sag somewhat and elevation angle scales may be inaccurate by 1 or 2 deg. Some minor adjustments are therefore necessary once satellites are being observed.

    The main motor axis angle is the easiest to understand. It is the angle between the motor axis bearing line and the horizontal, in the nearest polar direction. i.e towards the north if you are north of the equator. If there is a main axis scale, the readings may be marked to correspond to this angle or alternatively to 90 minus the angle. Just see what happens when you set it to say 10 deg. If it does not result in the motor axis line sloping low down to the north then read the scale the other way. Set the scale to 80 instead. The angle is preset by calculation and careful adjustment and you can do this adjustment indoors at leisure till you understand clearly what is happening.
    Setting the dish elevation is difficult. The easiest case is for an axi-symmetric dish, which has the LNB/Feed on the dish axis, in the middle, normally on three equal length legs. Just set the dish scale, if there is one, to minus 5 deg, for example.
    More likely you have an offset dish. In this case you also probably have a motor with a cranked arm on it, typically bent 30 or 40 deg downwards. In this case if you set the dish scale to 30 or 40 the result is zero elevation. You want it set to Angle = 30 minus the small offset angle above. This means the dish is aimed 5 deg lower than a line at right angles to the polar axis. This will aim you correctly at the due south satellite, with the motor central.

    succesuri!
    yippie kay ey motherfucker!




  10. #10
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    Imi cer scuze pentru eroarea comisa, banuiam ca cel care intreba de montura polara vroia pentru antena parabolica, nu pentru offset.
    Va rog, sa stearga cineva posturile mele de mai sus, e greseala mea, scuze inca o data.

  11. #11
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    Quote Originally Posted by gabrield View Post
    Imi cer scuze pentru eroarea comisa, banuiam ca cel care intreba de montura polara vroia pentru antena parabolica, nu pentru offset.
    Va rog, sa stearga cineva posturile mele de mai sus, e greseala mea, scuze inca o data.
    tu mereu esti pe langa ... daca nu stii, stai de-o parte !

  12. #12
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    Quote Originally Posted by gabrield View Post
    Si aia e montura polara ?
    De ce ii spune polara ?
    Ii spune montura polara pentru ca se foloseste la poli.
    De asemenea mai avem urmatoarele tipuri:
    -montura ecuatoriala
    -montura tropicala
    -montura circular polara(asta se foloseste la cercurile polare)
    [SIGPIC][/SIGPIC]

  13. #13
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    Default completare

    Quote Originally Posted by satenicu View Post
    Ii spune montura polara pentru ca se foloseste la poli.
    De asemenea mai avem urmatoarele tipuri:
    -montura ecuatoriala
    -montura tropicala
    -montura circular polara(asta se foloseste la cercurile polare)
    Si mai are si doi poli care...se resping....intre ei se pune antena care sta
    in echilibru instabil...si de aceea se poate roti in functie de care pol e mai tare si o da cand la stanga, cand la dreapta.

  14. #14
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    Quote Originally Posted by valentyn0_sat View Post
    tu mereu esti pe langa ... daca nu stii, stai de-o parte !
    Tocmai din acest motiv mi-am cerut scuze si am solicitat stergerea mesajelor de mai sus.
    Tu nu ai avut momente cind n-ai stiut nimic, sau te-ai nascut invatat ?

    Ia si tu exemplu de la satenenicu, el macar descrie monturile circumpolare, dar a uitat ca exista si montura merdionala, aia care se orienteaza pe fiecare meridian.

  15. #15
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    deci?
    imi spuneti si mie un model de montura polara pt offset, un pret, un magazin
    merci
    TV LCD TOSHIBA fullHD 82", DM800+1.4m offset MST-tabla cu 4 lnb+ toroidala cu 12 lnb =>>> acces 53est-5vest

 

 

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