Mycket bra sida om Satellit och Digital-Tv

Förklarar mycket om bl.a LNB:n, å tar effektivt död på alla dumheter om skillnaden mellan S/N i ett LNB med 0.4dB å ett med 0.2dB.

"The difference between a 0.6dB LNB and a 0.4dB LNB (even if such a thing really existed) is going to be so small as to make no difference to your problem. What you have is a serious lack of signal strength at certain times of day and only a larger dish will improve upon that situation.

Why do I say that a difference of 0.2 dB is neglgible?

Well, I'm not a mathematician and those who are will certainly correct me on the calculation but 3dB represents 50 percent signal difference. dBs use a logarithmic scale so 0.2 dB represents something like one hundredth of that - in other words 0.5 percent! So you pay £100 to gain 0.5% ? Heck, you could get the same improvement by chopping a metre of cable off."

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Länk till sidan: http://www.satcure.co.uk/tech/lnb2.htm

mvh humlan.