Well, from the Sticky by Ignition about signal levels:
Quote:
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Downstream Receive Power: Ideally +/- 3dBmV, cause for concern at around +/- 8dBmV, different modems handle the higher and lower levels differently however I'd expect to see service degredation at that point.
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hence my asking about downstream signal level.
Upstream seemed OK:
Quote:
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Upstream Transmit Power: Anything between 28dB and 53dB is fine. Up to 55dB is also fine so long as it's fairly stable. Above 55dB suggests issues. Depending on your modem connectivity is jeopardised when transmit power hits 58dBmV or in the case of Pace set tops 61dBmV.
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So Upstream seems well within tolerance, so by your reckoning it's time to ring the dreaded helpline
