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Technology Forums: FTA, Satellite, Cable, Home Media, Hardware & Computers
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| Satellite for Beginners Newbie to satellite? Don't be scared... you're in the right place |
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14-12-06, 03:42 PM
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#2 (permalink) |
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satellite expert
Join Date: Jan 2006
Location: Scottish Borders
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Re: LNB Mounting
Not neccesarily - lnb's have a small amount of adjustment in them. wiggle it backwards & forwards in the clamp until you peak the signals. If you cant be bothered or you are using very strong satellites just clamp it in the middle somewhere!
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14-12-06, 07:50 PM
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#3 (permalink) |
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Member
Join Date: Dec 2006
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Re: LNB Mounting
OK , I guess the focus can be varied a bit by moving it to and fro a bit.
Thinking about it, any small movement could be significant as the wavelengths in use are small and vary depending on what is being received. Anyway, I will have a play when I find a weak sat. Thanks Geoff |
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14-12-06, 09:20 PM
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#4 (permalink) |
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Satellite Help member
Join Date: Nov 2006
Location: Suffolk, ENGLAND
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Re: LNB Mounting
Well at 10GHz wavelength is 3.0cms and at 12Ghz wavelength is 2.5cms.
Too close and the dish is under illuminated. Too far out and the dish is over illuminated and the LNB might pick up extra noise from surrounding objects. BH
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Smart 0.2dB LNB, 1m Gibby dish, Stab HH100 motor, 10m co-ax, TM1000D, TM1500CI+super & TM 5200D USB boxes (modified). 57*east to 61*west. |
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