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A comment on Why you should never pay more than $10 for an HDMI cable (Infographic). Parent comment

Re:Why you should never pay more than $10 for an HDMI cable ... by ramchip on Wednesday March 31, 2010 @11:13AM (#1231973)
It takes a lot of noise to alter the digital signal like this. If we're talking long distance, like a telephone line, the signal gets weak enough that it can happen regularly, but on the cable from the DVD to the TV the voltage drop is ridiculously low. Noise doesn't affect your signal by 4 volts unless you have a serious problem with your system.
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Re:Why you should never pay more than $10 for an HDMI cable ... by micks56 on Wednesday March 31, 2010 @11:23AM (#1231999)
Actually, I think that it takes the exact same amount of noise to flip a bit as it does to transmit a bit.

Through the principle of superposition, if you transmit a 0 with X watts, and I transmit a 1 with X watts, our combined signal will be somewhere in the middle, which can cause a bit flip.

I am not talking about voltage drop from end to end, which is a separate issue. I am talking about interference occurring adjacent to any point on the cable that you pick.

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