Poor reception of Sky News

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Alpujarra
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Poor reception of Sky News

Postby Alpujarra » Tue Jan 09, 2007 10:54 pm

I am unable to watch Sky News at certain times of the day, mainly in the mornings.

The signal strength is always between 96 and 100 per cent on this channel, yet the picture and sound often break up, whereas channels with a signal strength of only 57% are perfectly watchable.

The dish is aligned correctly etc.

I at first believed that the problem may be due to the signal being too strong, but when I connect my other dish (which is aimed at Hispasat)
I don't have any problems with any channels on this satellite and the channels are all 100% signal strength.

Any ideas?

Beachcomber
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Location: Guadalhorce Valley

Postby Beachcomber » Wed Jan 10, 2007 12:16 am

More important than the signal strength is the signal quality. What reading do you get for this?

Alpujarra
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Posts: 131
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Postby Alpujarra » Wed Jan 10, 2007 8:04 pm

It varies between 51% & 60%.

Beachcomber
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Posts: 11081
Joined: Tue Jun 15, 2004 11:11 pm
Location: Guadalhorce Valley

Postby Beachcomber » Wed Jan 10, 2007 8:33 pm

If this reading is on a Sky digibox that is plenty but if it is on a free to air receiver it's rather low, you really need a signal quality of at least 70%.

Do you lose BBC and ITV as well or just Sky News?

pete_l
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Location: Benamaurel, Granada

Postby pete_l » Wed Jan 10, 2007 8:35 pm

it's not a vertical/horizontal polarisation problem is it?
Have you tried rotating the LNB in its clamp slightly, have you.
(remember to mark the original position first).

As you say if there's a strong signal on the same frequency, but
with the "other" polarisation, and your LNB isn't perfectly set, then
the stronger signal may leak through and interfere with Sky News.

Pete


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