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Results 1 to 5 of 5
  1. #1
    Member Mentor
    Join Date
    Dec 2003
    Posts
    979
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    Default Despre antene multifocar

    Salut,

    Exista cumva antene multifocar care se comporta bine chiar si pe semnale mai slabe?
    Eu locuiesc in Bucuresti si m-ar interesa in principal daca pot vedea onorabil urmatorii sateliti:

    Astra
    Hotbird
    Eutelsat W2
    Sirius
    Thor

    Intreb concret: cum se comporta pe transponderii mai slabi, cum ar fi TV1000 Scandinavia (pe Sirius) sau Sci-Fi France (pe Astra)? Am inteles ca e ca un set de antene de cca. 60cm; exista vreo antena mai mare/ mai buna achizitionabila de pe piata romaneasca astfel incat sa mearga macar ca un set de antene de 1,2m (buna)?

    Va multumesc anticipat pentru orice informatie!
    Multumesc,
    Scorpio


    VU+ Solo 2/ parabola 1,8m / offset 1.85m / Bucuresti

  2. #2
    Member Mentor
    Join Date
    Jan 1970
    Posts
    915
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    Default

    Eu nu cunosc de cat

    Wave TOROIDAL T90



    care face pentru fiecare satelit cam 1m de antena prin reflectie
    "Only two things are infinite, the universe and human stupidity, and I'm not
    sure about the former" - Albert Einstein
    Non nobis Domine, non nobis, sed nomini tuo da gloriam!

    "Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect." Linus Benedict Torvalds
    Linux is like a wigwam - no Gates, no Windows, and an Apache inside






  3. #3
    Moderator Expert
    Join Date
    Jan 2006
    Location
    Pe marginea prapastiei. Privind voios (spre voi) in jos!
    Posts
    2,591
    Posts Thanks / Likes

    Default

    T90 has the same effectiveness of 90 cm (38 inches) dish for each LNBF installed.
    Teoretic T90 ofera fiecarui LNB o suprafata echivalenta unei antene de 90 cm diametru. Practic, ma indoiesc sa fie chiar asa.

  4. #4
    Safe User Expert
    Join Date
    May 2005
    Posts
    2,956
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    Default

    Quote Originally Posted by Scorpio View Post
    exista vreo antena mai mare/ mai buna achizitionabila de pe piata romaneasca astfel incat sa mearga macar ca un set de antene de 1,2m (buna)?

    Va multumesc anticipat pentru orice informatie!


    Nu exista antena multifocar de "mass production" care sa ofere un echivalent de 1.2m pt fiecare lnb.Si eu am cautat mai demult sa am 8-9 sateliti pe o singura antena mare (echivalent 1.4-1.5 pt fiecare lnb), am contactat si un producator de antene toroidale iar raspunsul a fost cam cum ma asteptam: pretul unei asemenea antene daca s-ar produce ar fi cat un set de antene normale pt fiecare pozitie in parte poate chiar mai mare.

  5. #5
    Member Mentor
    Join Date
    Dec 2003
    Posts
    979
    Posts Thanks / Likes

    Thumbs up

    M-am lamurit, va multumesc foarte mult!
    Multumesc,
    Scorpio


    VU+ Solo 2/ parabola 1,8m / offset 1.85m / Bucuresti

 

 

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