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Power Levels

Regular Visitor

Power Levels

Hello,

 

When I got a "pro install" when I moved into my apartment for my gig connection, I did so in order to get both premium cabling and also to ensure the splitter I was using was premium/supported. I've been getting dumped a bit too often lately, and although my connection is usually stable, I work from home 100% so I would like it to be rock solid, obviously. I think my downstream power levels are beginning to hit the mark of being out of spec. I have one splitter the tech wanted to leave on to keep the levels from being over 12db (which I don't even use), but now I have some downstream channels that are over +15; the highest they have ever been. From everything I've read, this could be why I'm having issues.

If I take off the splitter I think I'll get even hotter. Is there any way I can tone down the downstream power without jacking up my other stats which seem fine (other than upstream SNR which I can't see at my demarq here). Thanks for any help; just want to make this as stable as I can & when I called in I didn't really get any help and was told it was fine when it was over +12. Now that it's even higher, I am wondering if that is why I have problems from time to time. No logs in the past few days, but I did lose connection a couple times in the past 2 weeks.

Power levels:

Frequency start Value
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency

<tabindex=-1>Startup Procedure</tabindex=-1>
Procedure Status Comment
Acquire Downstream Channel 543000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enable BPI+
IP Provisioning Mode Honor MDD IPv6 only

<tabindex=-1>Downstream Bonded Channels</tabindex=-1>
Channel Lock Status Modulation Channel ID Frequency Power SNR / MER Unerrored Codewords Correctable Codewords Uncorrectable Codewords
1 Locked QAM256 13 543000000 Hz 12.4 dBmV 41.1 dB 326229285 7 0
2 Locked QAM256 1 471000000 Hz 9.1 dBmV 40.6 dB 325031173 4 0
3 Locked QAM256 2 477000000 Hz 9.7 dBmV 40.8 dB 325035558 65 97
4 Locked QAM256 3 483000000 Hz 9.4 dBmV 40.6 dB 325037767 42 69
5 Locked QAM256 4 489000000 Hz 10.2 dBmV 40.9 dB 325041797 10 27
6 Locked QAM256 5 495000000 Hz 10.1 dBmV 40.8 dB 325046232 15 21
7 Locked QAM256 6 501000000 Hz 10.7 dBmV 41.0 dB 325049877 2 0
8 Locked QAM256 7 507000000 Hz 10.8 dBmV 40.9 dB 325053905 1 0
9 Locked QAM256 8 513000000 Hz 10.8 dBmV 41.0 dB 325084903 4 0
10 Locked QAM256 9 519000000 Hz 11.1 dBmV 40.9 dB 325088273 8 0
11 Locked QAM256 10 525000000 Hz 10.7 dBmV 40.8 dB 325092700 6 0
12 Locked QAM256 11 531000000 Hz 11.8 dBmV 41.0 dB 325096165 6 0
13 Locked QAM256 12 537000000 Hz 11.7 dBmV 41.1 dB 325099516 8 0
14 Locked QAM256 14 549000000 Hz 12.2 dBmV 41.2 dB 325103654 7 0
15 Locked QAM256 15 555000000 Hz 12.7 dBmV 41.1 dB 325107099 12 0
16 Locked QAM256 16 561000000 Hz 12.7 dBmV 41.0 dB 325110633 18 0
17 Locked QAM256 17 567000000 Hz 12.8 dBmV 41.0 dB 325153335 25 0
18 Locked QAM256 18 573000000 Hz 12.8 dBmV 41.0 dB 325157038 36 0
19 Locked QAM256 19 579000000 Hz 12.7 dBmV 40.6 dB 325160857 56 0
20 Locked QAM256 20 585000000 Hz 13.4 dBmV 40.9 dB 325164266 55 0
21 Locked QAM256 21 591000000 Hz 13.5 dBmV 40.8 dB 325168189 44 0
22 Locked QAM256 22 597000000 Hz 14.4 dBmV 41.1 dB 325172333 47 0
23 Locked QAM256 23 603000000 Hz 14.2 dBmV 41.1 dB 325175123 48 0
24 Locked QAM256 24 609000000 Hz 14.4 dBmV 41.1 dB 325179350 77 0
25 Locked QAM256 25 615000000 Hz 14.3 dBmV 40.4 dB 325182901 74 0
26 Locked QAM256 26 621000000 Hz 14.6 dBmV 40.8 dB 325186943 77 0
27 Locked QAM256 27 627000000 Hz 14.1 dBmV 40.6 dB 325189937 157 0
28 Locked QAM256 28 633000000 Hz 14.3 dBmV 40.7 dB 325194224 132 0
29 Locked QAM256 29 639000000 Hz 14.5 dBmV 40.6 dB 325198009 185 0
30 Locked QAM256 30 645000000 Hz 14.8 dBmV 40.7 dB 325201135 148 0
31 Locked QAM256 31 651000000 Hz 15.2 dBmV 40.8 dB 325202324 140 0
32 Locked QAM256 32 657000000 Hz 14.8 dBmV 40.6 dB 325202355 187 0

<tabindex=-1>Upstream Bonded Channels</tabindex=-1>
Channel Lock Status Modulation Channel ID Frequency Power
1 Locked ATDMA 1 37800000 Hz 46.8 dBmV
2 Locked ATDMA 2 31400000 Hz 47.3 dBmV
3 Locked ATDMA 3 25000000 Hz 46.8 dBmV
4 Locked ATDMA 4 18600000 Hz 46.3 dBmV
5 Not Locked Unknown 0 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Hz 0.0 dBmV

<tabindex=-1>Downstream OFDM Channels</tabindex=-1>
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power SNR / MER Active Subcarrier Number Range Unerrored Codewords Correctable Codewords Uncorrectable Codewords
1 Locked 0 159 690000000 Hz 15.8 dBmV 39.3 dB 1426 ~ 2669 5073774229 129637 0
2 Not Locked 0 0 0 Hz 0.1 dBmV 0.0 dB 0 ~ 4095 0 0 0

<tabindex=-1>Upstream OFDMA Channels</tabindex=-1>
Channel Lock Status Modulation / Profile ID Channel ID Frequency Power
1 Not Locked Unknown 0 0 Hz 0 dBmV
2 Not Locked Unknown 0 0 Hz 0 dBmV
Expert

Re: Power Levels

Yep. That's high. It could be overdriving the front end receiver of the modem. You could try using one of these on the line leading to the modem. It will knock the downstream power down by 6 dB without affecting the upstream channel / return path power level which is already a bit high;

 

https://www.amazon.com/line-Signal-Forward-Attenuator-FPA6-54/dp/B07882H96R/ref=sr_1_1?crid=3RSTGRW3...

 

Or take that splitter out of the mix if you don't need it and use 2 of these in series for a 12 dB reduction.



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