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Thread: signal level??

  1. #1
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    Default signal level??

    Intrebare legata de transp. 12324 V DVB-S2/QPSK de la 28,2 est.
    Sunt hd-uri pe el espn disc hd etc.
    Mi se pare ca transp are un semnal fluctuant in jur de 1,5 pana la 2 dB
    respectiv cu ant mea de 1,2 m de test am pe el intre 9 - 7,5 - 7 dB.
    Am facut o serie de teste schimband lnb-ul pe rand inverto, golden interstar alte no-name-uri si se manifesta la el.
    Caderile de semnal sunt foarte rapide si asta cauzeaza probleme imaginii.
    Intrebarea se refera daca a mai observat cineva fenomenul sau poate deja s-a mai scris si nu am gasit eu. Receptia se face cu dm 800.



  2. #2
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    Default

    cu antena de 1.6, semnal 10.5 db, am testat 3 lnb uri Invertro, mai scade la 9-9,5 dB semnalul dar nu am probleme..

    de mult. la gemeni 4,4, aveam freeze uri pe acest transporder.

    cred ca e o problema "de la ei" ca si acum foarte rar se mai intampla sa am freeze, dar f f rar..in general merge fara pb..

    pe dm500 HD, nici vorba de freeze.

    Tunerul de la dm500 HD e cu mult peste dm800 mai bun.. vezi Astra 1H, mai exact Csat HD..
    VU+Solo2, Samsung ue40D7000,ue37D5700,Diablo Wifi, Offset 0,9m - 9E-13E-19E-23E, Offset 1.2m -28 E , 1.2m - 36 E, Offset 0.9m - 1w

  3. #3
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    Default tuner & drivers

    Quote Originally Posted by mark21 View Post
    ...cred ca e o problema "de la ei" ca si acum foarte rar se mai intampla sa am freeze, dar f f rar..in general merge fara pb..
    ...pe dm500 HD, nici vorba de freeze.
    ...Tunerul de la dm500 HD e cu mult peste dm800 mai bun.. vezi Astra 1H, mai exact Csat HD..
    Multumesc de raspuns, da problema este de la transponder care da semne de oboseala in mod normal toate celelalte transp. au o variatie de 0,5 dB maxim cel de aici se comporta anormal dar pentru un C/N mare peste 10 cred ca nu observa. In mod normal depinde de tuner care are la variatii asa mari si bruste de semnal intre 1 - 1,5 pana la 2 dB se comporta diferit.
    Eu fol. newnigma 2.8.4 cu driverele din 01.04 dar se pare ca au aparut unele mai noi ieri 14.04. link mai jos.

    http://dreamboxupdate.com/opendreamb...4-r0_dm800.ipk

    Atentie sunt pentru release-ul vechi 1.5 (2.6.12-5.1)

    Inca nu le-am testat dar se pare ca rezolva urmatoarele:

    - fixes alps bsbe2 low symbolrate problems
    - fix freezes some times (introduces with smp locking changes)
    - small performance improvements
    - add lpcm support for dm500hd

    Sunt aparute drivere deci si pentru 500 HD.

  4. #4
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    astept cu nerabdare gemeni..si pt 800hd, si pt 500hd..
    VU+Solo2, Samsung ue40D7000,ue37D5700,Diablo Wifi, Offset 0,9m - 9E-13E-19E-23E, Offset 1.2m -28 E , 1.2m - 36 E, Offset 0.9m - 1w

 

 

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