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  1. #1
    Junior Member Teacher
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    Jan 2003
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    Default Cum se poate verifica o antena offset!

    Cum se poate verifica o antena offset daca face concentrarea maxima a receptiei?Exista vreun aparat special de masura?Am citeva experiente traite care m-au surprins ex:Locatia 48,1N,11,6E.Pe Eutesat W2-11132V16300-Antena 2,3,4 si Sirius -12675V10000-Realitatea cu o antena Gilbertini 85 cm nu am semnal suficient in comparatie la aceeasi locatie,cu o antena Gilbertini 65 cm,la care receptia ambelor frecvente este egala cu cea de 85 cm.Precizez ca antenele sint noi si nu prezinta urme de lovituri sau indoire.

  2. #2
    Gold Member Expert
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    Eu in general o "probez" punind-o cu fata in jos pe o suprafata plana.Nu ar trebui sa aiba spatiu intre ea si suprafata respectiva.De multe ori poti proba cu LNB-ul in mina daca suportul este in focar.Poate sa fie si bratul de vina.



  3. #3
    Silver Member Expert
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    Quote Originally Posted by gymi View Post
    Eu in general o "probez" punind-o cu fata in jos pe o suprafata plana.Nu ar trebui sa aiba spatiu intre ea si suprafata respectiva.De multe ori poti proba cu LNB-ul in mina daca suportul este in focar.Poate sa fie si bratul de vina.
    corect! mai ales daca este un brat fara gaura de scurgere a apei si iarna ingheata

  4. #4
    Member Mentor
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    Asa si eu am scos semnal mult mai bun cu o antena Digi de 80 cm decat pe a mea de 120cm Al , oricum cred ca cele vechi nu aveau focalizarea prea reusita , acum au aparut multifocus la care in urma cu cativa ani nici nu se gandise nimeni .

  5. #5
    Moderator Expert
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    da un search pe forum avea parca un user o schema cu focarul la offset[ e treaba mai veche]si poti calcula exact daca antena e buna
    1,2 offset dish/lnb inverto/dream 500hd/dream 525 hd

 

 

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