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    Can't receive one of 2 channels on same transponder

    This is a discussion on Can't receive one of 2 channels on same transponder within the Sky & Sky+ TV forums, part of the Other Sky help and support category; Hi Everyone, I have an intermittant problem with some (not all) channels showing 'No satellite signal being received' or 'There ...

    1. #1
      Bluefastcar's Avatar
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      Can't receive one of 2 channels on same transponder

      Hi Everyone,

      I have an intermittant problem with some (not all) channels showing 'No satellite signal being received' or 'There is a technical fault with this channel'. This has been on and off for the last few weeks. No noticeable pattern apart from grief from HWMBO. Sometimes everything is fine.

      Yesterday I finally decided to try and fix it. When I lost some channels I logged a quantity of them to see whether there was a pattern, and surprise surprise there was. I appeared to have lost all the horizontal channels. So my initial diagnosis was either a faulty LNB not responding to the higher supply voltage or the digibox (a Pace DS430N) was not sending the higher voltage.

      I decided to leave the job till today. However today even though I am missing some channels the pattern is not so consistant. All the chanels that are missing are horizontal, however not all the horizontal channels are missing. As an example News 24 (epg 503) I am getting, but the Parliamentary channel (epg 504) I am not, these two channels are on the same transponder (11.954 H on 2A south).

      The signal test on the box shows signal level of about 50% with quality about 80%. Checking the LNB supply shows correct lo (13V) and hi (17.5V) levels.

      Can anyone explain what might be happening?

      Rgds

      Mike


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    3. #2
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      Re: Can't receive one of 2 channels on same transponder

      Theres a BBC News 24 on 10.773H as well. I'd guess you are tuning to that. Looks lke you have problems with Hi band Horizontal. Still looks like an LNB issue.
      Can you check for the 22kHz hi band tone?
      There is no p in Thomson.

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      Re: Can't receive one of 2 channels on same transponder

      Thanks for your reply Proppinupthebar.

      Not got access to 22kHz tone checker, will try to obtain on Monday.

      I take your point about the different News 24 transponder.

      Intermittant faults are v.difficult.

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      Re: Can't receive one of 2 channels on same transponder

      Quote Originally Posted by Bluefastcar View Post
      Thanks for your reply Proppinupthebar.

      Not got access to 22kHz tone checker, will try to obtain on Monday.

      I take your point about the different News 24 transponder.

      Intermittant faults are v.difficult.
      If Hi band vertical works then the tone generation works.
      I always suggest taking the box to a mates house with Sky and test there. How quickly does the problem show up?
      There is no p in Thomson.

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      Re: Can't receive one of 2 channels on same transponder

      The problem appears, though probably isn't, random. Sometime the system will work for several days ok. Sometimes will oscillate on/off in several minutes. This usually happens when HWMBO is watching a crucial footy match on Sky Sports. Therefore a bit diffucult to take to neighbour as could take a day or two to be certain whether the box is ok.

      Such is life. I'll check 22kHz tomorrow anyway. Then if no luck I think I'll change LNB. Not a big amount of money, just the labour.

      Thanks for your interest.

     

     

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