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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
SNR on boxes - is it worth going by it?
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<blockquote data-quote="MCelliotG" data-source="post: 1020156" data-attributes="member: 404726"><p>The rule is simple: <strong>stay away</strong> from percentages. They can never be accurate and comparable, in fact they are meaningless, the snr is a value that shows C/N (carrier to noise) which is a boundless (limitless) value which is measured in db. So what a percentage measures? Of what?</p><p>Only some PC cards can display a quite accurate db value and a few selected E2/non E2 receivers (it all depends on the tuner hardware and drivers). </p><p>And for God's love never trust VU+ boxes, they don't care about db readings and the driver always returns a limited digital value which is then converted to db and it's always wrong even when a part of it gets close.</p><p>Anyway in conclusion receivers are not pedometers, and a user will never need 1000% accurate professional readings. If the receiver can measure SNR quite closely to a professional value and the SNR is boundless then it's more than enough in all cases.</p></blockquote><p></p>
[QUOTE="MCelliotG, post: 1020156, member: 404726"] The rule is simple: [B]stay away[/B] from percentages. They can never be accurate and comparable, in fact they are meaningless, the snr is a value that shows C/N (carrier to noise) which is a boundless (limitless) value which is measured in db. So what a percentage measures? Of what? Only some PC cards can display a quite accurate db value and a few selected E2/non E2 receivers (it all depends on the tuner hardware and drivers). And for God's love never trust VU+ boxes, they don't care about db readings and the driver always returns a limited digital value which is then converted to db and it's always wrong even when a part of it gets close. Anyway in conclusion receivers are not pedometers, and a user will never need 1000% accurate professional readings. If the receiver can measure SNR quite closely to a professional value and the SNR is boundless then it's more than enough in all cases. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
SNR on boxes - is it worth going by it?
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