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43 posts

Geek
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Topic # 87066 19-Jul-2011 08:26
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We moved house and havent been able to get SBS on the new houses dish. What do I need to do to the sky dish to get SBS? i've read of changing the LNB bit on the dish. If its a simple job dont mind doing myself, but need some guidance on what parts to get.

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Uber Geek
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  Reply # 495154 19-Jul-2011 10:07
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firstly, can you get normal Freeview? Is this the only set top box plugged in to the dish?

Please note that SBS is quite a bit weaker than Freeview signals. For Freeview/Sky is around 14dB, whereas SBS is usually around 10dB or sometimes even less.



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Geek
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  Reply # 495156 19-Jul-2011 10:13
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I can get normal Freeview ok, we dont have sky nor plan to ever have it. Yes we only have one receiver stb.

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Ultimate Geek
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  Reply # 495382 19-Jul-2011 18:25

It could be that the LNB in the dish has gone off frequency (SBS is more sensitive to that than Freeview).

You can test this theory out by moving the LNB frequency in the decoder up or down 5-10MHz and seeing the result (whether you get lock on SBS). My one dropped 10MHz, so now I've got my decoder LNB frequency set to 10740MHz. This only seems to happen with the oval shaped Sky 10750 LNB's.

If that doesn't help, you probably need to optimise the LNB skew angle and dish angle as they now need to be perfect for SBS to be received on smaller dishes (below 70cm).




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