Forum Discussion

javedsaleem's avatar
javedsaleem
On our wavelength
12 months ago
Solved

Errors - power levels

I recently renewed my Contract......and now I have lots of errors

 

3.0 Downstream channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 306000000 5.9 41 QAM 256 22
2 138000000 6.9 42 QAM 256 1
3 146000000 6.9 42 QAM 256 2
4 154000000 7 42 QAM 256 3
5 162000000 7 42 QAM 256 4
6 170000000 6.9 42 QAM 256 5
7 178000000 6.8 42 QAM 256 6
8 186000000 6.7 42 QAM 256 7
9 194000000 6.9 42 QAM 256 8
10 202000000 6.8 42 QAM 256 9
11 210000000 7 42 QAM 256 10
12 218000000 6.9 42 QAM 256 11
13 226000000 6.7 42 QAM 256 12
14 234000000 6.4 42 QAM 256 13
15 242000000 6.3 42 QAM 256 14
16 250000000 6.2 42 QAM 256 15
17 258000000 6.2 42 QAM 256 16
18 266000000 6.2 42 QAM 256 17
19 274000000 6.2 42 QAM 256 18
20 282000000 6.2 41 QAM 256 19
21 290000000 6.1 41 QAM 256 20
22 298000000 5.9 41 QAM 256 21
23 314000000 5.9 41 QAM 256 23
24 322000000 5.7 41 QAM 256 24
25 330000000 5.5 41 QAM 256 25
26 338000000 5.5 40 QAM 256 26
27 346000000 5.5 41 QAM 256 27
28 354000000 5.4 41 QAM 256 28
29 362000000 5.5 41 QAM 256 29
30 370000000 5.6 41 QAM 256 30
31 378000000 5.8 41 QAM 256 31
32 386000000 5.8 41 QAM 256 32

3.0 Downstream channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 41 9351 7399
2 Locked 42 2446 8508
3 Locked 42 10507 26013
4 Locked 42 961 2221
5 Locked 42 1117 4834
6 Locked 42 25 119
7 Locked 42 1181 4884
8 Locked 42 6385 23194
9 Locked 42 6357 24328
10 Locked 42 6572 25753
11 Locked 42 13048 37499
12 Locked 42 10951 21499
13 Locked 42 10819 20651
14 Locked 42 12389 37541
15 Locked 42 1166 4616
16 Locked 42 14780 48317
17 Locked 42 7334 15709
18 Locked 42 10973 16589
19 Locked 42 10142 20093
20 Locked 41 6462 19074
21 Locked 41 13872 35589
22 Locked 41 12395 19513
23 Locked 41 9651 11404
24 Locked 41 8189 20916
25 Locked 41 2063 8991
26 Locked 40 7077 14142
27 Locked 41 11008 8600
28 Locked 41 9103 4289
29 Locked 41 9534 8082
30 Locked 41 7714 10213
31 Locked 41 10524 11998
32 Locked 41 10694 11430

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
159 94 4K 1840 QAM 4096 1108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
159 Locked 41 5.4 555941319 0
 
 
 
[MOD EDIT: Subject title changed for clarity]
  • jpeg1's avatar
    jpeg1
    12 months ago

    Your signal levels are all good. But there is a lot of noise on the signal which might be the cause of any problems you have. 

  • javedsaleem's avatar
    javedsaleem
    On our wavelength
    12 months ago

    3.0 Upstream channels

    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
    04960000043.35120QAM 641
    14310000043.35120QAM 642
    23660000043.55120QAM 643
    33010000043.85120QAM 644
    42360000043.35120QAM 645

    3.0 Upstream channels

    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
    0ATDMA0030
    1ATDMA0000
    2ATDMA0000
    3ATDMA0000
    4ATDMA0000

    3.1 Upstream channels

    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    61037.02KQAM 256

    3.1 Upstream channels

    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    6OFDMA2007400000000
    • javedsaleem's avatar
      javedsaleem
      On our wavelength
      12 months ago

      Network Log

      Time Priority Description
      06-02-2024 21:55:36noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      06-02-2024 21:55:36warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      06-02-2024 20:34:56warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      06-02-2024 20:34:56noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      06-02-2024 19:26:35noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      06-02-2024 19:26:35warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      05-02-2024 11:28:56noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      05-02-2024 11:28:56warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      05-02-2024 11:28:52noticeREGISTRATION COMPLETE - Waiting for Operational status
      05-02-2024 11:28:47warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      05-02-2024 11:28:47warningDynamic Range Window violation
  • jpeg1's avatar
    jpeg1
    Alessandro Volta
    12 months ago

    Your signal levels are all good. But there is a lot of noise on the signal which might be the cause of any problems you have. 

    • javedsaleem's avatar
      javedsaleem
      On our wavelength
      12 months ago

      Thank you for your reply.

       

      Can you elaborate on this and give me an example?

  • jpeg1's avatar
    jpeg1
    Alessandro Volta
    12 months ago

    On the table of Locked Downstream channels, there are many corrected and uncorrected data errors, which are most likely due to noise interference.  This might be due to a loose coaxial connection to your Hub, which is worth checking.  Otherwise it will be noise on the incoming broadband signal.

    Depending on how you use your connection, this may or may not cause you a problem. 

    • javedsaleem's avatar
      javedsaleem
      On our wavelength
      12 months ago

      Thank you for that.

       

      Admin - please get in touch, so we can try to figure out why I am having a slow internet connection

    • javedsaleem's avatar
      javedsaleem
      On our wavelength
      12 months ago

      Hi

      Isn't possible, that if the Power (dBmV) is too high, that there could be noise on the line.

       

      The original Power (dBmV) level is between 15-17, before VM fitted an 10dB Attenuator.

       

      That's because at the Street Box, we are plugged into the top line of the Amplifier Sockets.

       

      If we were moved DOWN a few lines on the Amplifier Sockets Board, is there a possibility that the noise may reduce and we can do away with the Attenuator

      • Ashleigh_C's avatar
        Ashleigh_C
        Forum Team
        11 months ago

        Thank you javedsaleem we have double checked and currently there are no issues raised with our team for any high utilisation in the area. 

        Are you able to confirm if this is happening across WiFi or wired connection so we can advise further? 

  • jpeg1's avatar
    jpeg1
    Alessandro Volta
    12 months ago

    How slow is your connection. How are you measuring it. WiFi and wired? 

  • jpeg1's avatar
    jpeg1
    Alessandro Volta
    12 months ago

    Your first picture shows a Wifi speed test. VM only promise 30 Mbps using their WiFi devices. 

    Your second pic hasn't cleared moderation yet. Did it contain personal data? 

    The BQM shows some spikes this morning caused by your speed tests. Did you do a reset yesterday to cause that red patch? 

    • javedsaleem's avatar
      javedsaleem
      On our wavelength
      12 months ago

      Hi

       

      The 2nd pic was the BQM

       

      I did a reset which caused the the red patch

       

      There are more.spikes than usual....it used to be calm before.

      • Matthew_ML's avatar
        Matthew_ML
        Forum Team
        12 months ago

        Hey javedsaleem, thank you for reaching out and I am sorry to hear this.

        I can see my colleague replied to you on another thread did you see this at all?

        Are you still having some connection issues? 

  • jpeg1's avatar
    jpeg1
    Alessandro Volta
    12 months ago

    You get a spike every time you do a speed test.