@Andrew G - Thanks for that breakdown, very helpful. Got a better understanding,
Question - When "you guys" are helping people you ask for the stats on power/db etc (as below) - what are you looking for here? What's good and bad look like?
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
| 25 | 330750000 | 1.5 | 39 | QAM256 | 25 |
| 6 | 178750000 | 2.3 | 39 | QAM256 | 6 |
| 7 | 186750000 | 2.5 | 40.4 | QAM256 | 7 |
| 8 | 194750000 | 2.4 | 40.4 | QAM256 | 8 |
| 9 | 202750000 | 2.3 | 40.4 | QAM256 | 9 |
| 10 | 210750000 | 2.1 | 40.4 | QAM256 | 10 |
| 11 | 218750000 | 1.9 | 40.9 | QAM256 | 11 |
| 12 | 226750000 | 1.8 | 39 | QAM256 | 12 |
| 13 | 234750000 | 2 | 39 | QAM256 | 13 |
| 14 | 242750000 | 2.1 | 40.4 | QAM256 | 14 |
| 15 | 250750000 | 1.9 | 39 | QAM256 | 15 |
| 16 | 258750000 | 1.3 | 39 | QAM256 | 16 |
| 17 | 266750000 | 1.3 | 39 | QAM256 | 17 |
| 18 | 274750000 | 0.9 | 38.6 | QAM256 | 18 |
| 19 | 282750000 | 0.5 | 38.6 | QAM256 | 19 |
| 20 | 290750000 | 1.2 | 39 | QAM256 | 20 |
| 21 | 298750000 | 1.8 | 39 | QAM256 | 21 |
| 22 | 306750000 | 2.3 | 39 | QAM256 | 22 |
| 23 | 314750000 | 2.1 | 39 | QAM256 | 23 |
| 24 | 322750000 | 1.6 | 38.6 | QAM256 | 24 |
| 26 | 338750000 | 1.7 | 39 | QAM256 | 26 |
| 27 | 346750000 | 1.8 | 39 | QAM256 | 27 |
| 28 | 354750000 | 1.8 | 39 | QAM256 | 28 |
| 29 | 362750000 | 1.8 | 38.6 | QAM256 | 29 |
| 30 | 370750000 | 2 | 39 | QAM256 | 30 |
| 31 | 378750000 | 2 | 39 | QAM256 | 31 |
| 32 | 386750000 | 2.1 | 39 | QAM256 | 32 |
| 33 | 394750000 | 1.8 | 39 | QAM256 | 33 |
| 34 | 402750000 | 1.6 | 39 | QAM256 | 34 |
| 35 | 410750000 | 1.7 | 39 | QAM256 | 35 |
| 36 | 418750000 | 1.7 | 39 | QAM256 | 36 |
bryansmithsnr wrote:@Andrew G - Thanks for that breakdown, very helpful. Got a better understanding,
Question - When "you guys" are helping people you ask for the stats on power/db etc (as below) - what are you looking for here? What's good and bad look like?
<snip>
Very generally, Downstream power should be within the range of -6 to +10, Upstream power between 34 and 51. QAM for Upstream should be 256, and on 3.1 channel, QAM 4096. There should be zero PostRS errors. The number of T3's should be minimal.
A BQM is also a must for any VM circuit, as it monitors and records the status for diagnostics and proof of poor performance, if needed.
That's a very quick simplistic overview.
