Using a Arris T25 eMTA (on the list of supported gigabit eMTAs) and see varying numbers of uncorrectable codewords on the linear channels. They tend to "move around" and are not on the same channel(s) consistently.
Given this is a gigabit connection using DOCSIS 3.1, do the QAM channels even matter? And how do I figure out if the ODFM channel is OK? Here is what I can see in the logs.
Downstream OFDM
| |
FFT Type |
Channel Width(MHz) |
# of Active Subcarriers |
First Active Subcarrier(MHz) |
Last Active Subcarrier(MHz) |
Average RxMER(dB) |
| Pilot |
PLC |
Data |
| Downstream 2 |
4K |
82 |
1640 |
673 |
754 |
46 |
40 |
40 |
