Faulty or Insufficient LNB?


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Old 15-11-2007   #1
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Faulty or Insufficient LNB?

If an LNB is on its way out, or is faulty, would it affect the channels that you can receive?

The reason I ask is I have an 80cm dish with a Grundig Universal LNB on it attached to a Humax F1-C1. I am pointing it at Astra 19.2 and am getting quite a few channels with good reception. My Signal Strength and Quality are around 60%. The dish and LNB are around four years old or more, so I was told.

However, I seem to also be missing quite a few channels according to Lyngsat tables, especially all the German ones with seem to be on the later Astra satellites. Even when I try to manually tune, I get nothing, with a report of No Signal Found.

All very confusing and annoying to say the least!

Any suggestions?
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Old 15-11-2007   #2
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Last edited by 2cvbloke; 15-11-2007 at 08:03 PM. Reason: Stupid question...
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Old 15-11-2007   #3
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Me again, has your dish moved at all over the past 4 years? The signal levels do seem a bit low for an 80cm. You could try nudging the dish until you get a higher strength (make sure you mark the position of the dish BEFORE you try anything, just incase you lose the satellite, and of course be careful on the ladders!!!)...
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Old 15-11-2007   #4
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The LNB may be an old enhanced model, these only receive low band. Check out to see if you can receive any channels over 11,700 Mhz.

I am making an assumption from your post that this is the first time you have connected to this dish.
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Old 26-11-2007   #5
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Once again you answered my problem bob on!

Changed the LNB to a new Monoblock model and everything works fine now - all the channels that are there are now being received :-)

Thanks everyone!
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Old 26-11-2007   #6
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