Quote:
Originally Posted by speedfreak
up is
Power Level
(dBmV) 45.75
He said my snr is fine where it is and I think he said I'll only run in to trouble at about 28, I'll see what they say tomorrow but looks like it might be monday before a tech can sort the power levels  two of the channels are showing in the red on his screen |
He's wrong. You don't show your DS modulation but I think from your earlier stats you're on 256QAM. The lower threshold for that modulation is 30 dB; then you MUST have 3dB margin for the everyday weaknesses/impairments; pros want a further 3 dB because the MUST 3dB is always used up.
Of course you could be on 64QAM. For years I was on 256QAM; last week I was moved to the Knowsley head end on 64QAM (slightly better peak time performance actually). I understand from Igni that this change is likely due to the 10:1 resegmentation that's going on. So if you're on 64QAM, then 34 dBmv is fine as the lower threshold is 24 dB.
Nut your -8 dBmv is no good and hence your correctables.