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No signal on sky channels.

  • 12-11-2015 7:26pm
    #1
    Registered Users, Registered Users 2 Posts: 2,063 ✭✭✭


    My elderly neighbour has an enigma 2 box (LX1). All the sky channels are showing no signal and are greyed out with the message tuner not configured correctly. yet the Bt, setanta,ruk etc are fine. I have tried running Autoboquets 28.2 and a rescan. No sign of them. Both polaritys V and H are effected. When i scan a single transponder that has a sky channel on either polarity it finds no channels. I brought my own box up and its the same result. :confused:


Comments

  • Registered Users, Registered Users 2 Posts: 4,739 ✭✭✭nava


    UrbanFret wrote: »
    My elderly neighbour has an enigma 2 box (LX1). All the sky channels are showing no signal and are greyed out with the message tuner not configured correctly. yet the Bt, setanta,ruk etc are fine. I have tried running Autoboquets 28.2 and a rescan. No sign of them. Both polaritys V and H are effected. When i scan a single transponder that has a sky channel on either polarity it finds no channels. I brought my own box up and its the same result. :confused:


    Could it be that the dish moved a little bit when the wind last couple of days? Check cable in dish to make sure it's ok. Or maybe damage cable.


  • Closed Accounts Posts: 214 ✭✭amikoalien2


    nava wrote: »
    Could it be that the dish moved a little bit when the wind last couple of days? Check cable in dish to make sure it's ok. Or maybe damage cable.

    I would go along with this as you have tried your own working box there and got same
    It does not take much of a move to affect picture
    failing that I would look at the lnb

    Not familiar with the lx1 but most enigma boxes have a signal meter built in what signal %
    are you getting


  • Registered Users, Registered Users 2 Posts: 2,063 ✭✭✭UrbanFret


    I was getting up to 85% quailty on the channels he had yet 0% on the sky package. The dish alignment was perfect despite some very strong winds. So I swapped out the lnb ,scanned and lo and behold all channels again available.Any channel with a symbol rate of 27500 was not been found which just so happened to be all the sky sd package. Amazingly the sky Hd channels which have a symbol rate of 29500 were all populating.
    Thanks guys.;)


  • Closed Accounts Posts: 2,278 ✭✭✭Thurston?


    UrbanFret wrote: »
    ... So I swapped out the lnb ,scanned and lo and behold all channels again available.Any channel with a symbol rate of 27500 was not been found which just so happened to be all the sky sd package. Amazingly the sky Hd channels which have a symbol rate of 29500 were all populating.

    Maybe all the problem channels are in the high band of the LNB? So the old LNB just wasn't switching to high band.


  • Closed Accounts Posts: 214 ✭✭amikoalien2


    Thanks for letting us know what it was
    may help someone else in the future
    :-)


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  • Registered Users, Registered Users 2 Posts: 2,063 ✭✭✭UrbanFret


    I think if I encounter a similar story again I'll go straight for the lnb. Would have saved me a lot of time and head scratching.
    The lnb (revez quad) was only a couple of months old as well.


  • Closed Accounts Posts: 2,278 ✭✭✭Thurston?


    For transponders above about 11700 MHz (high band), the LNB should switch to downconvert by 10600 MHz, rather than 9750 MHz for TPs below this (low band).

    The 29500 & 27500 symbol rates are, to the best of my knowledge, because DVB-S2 can use more of the available TP bandwidth without causing excessive interference to adjacent TPs. (RF bandwidth is about 40 MHz, with the 22000/23000 DVB-S/DVB-S2 TPs being about 30 MHz.)


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