[Ignitionnet]

+/-3 is ideal sure, but it's certainly a very long way from being required and unrealistic to expect from every install or even most of them. The guys who say it should be at that level all the time need to visit a cable network in the real world really.

You obviously have other issues there, I run just fine with 5 - 6dBmV on my downstreams so you do need a tech visit.

You didn't mention what your upstream looked like by the way, I would be more interested in that. There's nothing in your downstream numbers to indicate a problem at all. Power, correctable / uncorrectable codewords, RxMER all fine the only odd thing is the differences in power between your 4 downstreams, it's odd for it to go higher then lower but no signs of masses of errored codewords so...

My own levels for reference:

DS-1 DS-2 DS-3 DS-4
Frequency 299000000 307000000 315000000 323000000
Lock Status (QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y Y/Y/Y
Channel Id 1 2 3 4
Modulation 256QAM 256QAM 256QAM 256QAM
Symbol Rate (Msym/sec) 6.952 6.952 6.952 6.952
Power Level (dBmV) 5.51 5.73 5.86 6.23
RxMER (dB) 37.94 38.26 38.61 38.61
Correctable Codewords 942 886 795 598
Uncorrectable Codewords 300 285 305 310