Observer

Re: My Signals and T3 TImeouts

Might be over my head here, but I sure appreciate you both. Thank you!

 

Here’s my DS this morning . Copied another thing called correctable code words. The DS has changed a little?

 

16 1/2 hours of uptime. What do you think?

 

 

Downstream Channel Bonding Value


Index 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Lock Status Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked


Frequency 633 MHz 561 MHz 567 MHz 573 MHz 579 MHz 585 MHz 591 MHz 597 MHz 603 MHz 609 MHz 615 MHz 621 MHz 627 MHz 555 MHz 639 MHz 645 MHz


SNR 40.6 dB 41.3 dB 41.1 dB 41.1 dB 41.1 dB 41.2 dB 41.0 dB 41.1 dB 41.3 dB 41.2 dB 41.0 dB 40.7 dB 40.7 dB 41.3 dB 40.4 dB 40.6 dB


Power 4.7 dBmV 4.4 dBmV 4.3 dBmV 4.3 dBmV 4.6 dBmV 4.6 dBmV 4.7 dBmV 4.7 dBmV 5.0 dBmV 5.0 dBmV 4.9 dBmV 4.7 dBmV 4.7 dBmV 4.5 dBmV 4.8 dBmV 4.8 dBmV


Modulation 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM

 

 

CM Error Codewords

 

Unerrored Codewords

 

2683520632 2682476614 2682476636 2682476641 2682476684 2682476702 2682476723 2682476738 2682476759 2682476768 2682476709 2682476728 2682476571 2682476852 2682476522 2682476448

 

Correctable Codewords

 

14 24 24 35 15 15 10 17 14 27 12 14 14 19 15 18

 

Uncorrectable Codewords

 

0 0 0 0 0 0 0

Observer

Re: My Signals and T3 TImeouts

Thanks again for explaining DS SNR.

The downstream power level, does that fluctuate some?
Expert

Re: My Signals and T3 TImeouts

Ok, there's very little correctables per the total good bytes. And yes, DS varies slightly, shouldn't be more than 1.0 dB

 Serious US changes arn't good and if everything in your house is new, It's somewhere else on the node, maybe a mile away, generating noise... Good luck getting it fixed

 

 

Observer

Re: My Signals and T3 TImeouts

Thank you MsRaye.

 

dBmV is now lower. Those downstream numbers are fluctuating. 

 

17 hours and no T3 tImeouts or anything else in log. Internet has been solid.

 

Downstream

 

Index

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Lock Status

Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked Locked


Frequency

633 MHz 561 MHz 567 MHz 573 MHz 579 MHz 585 MHz 591 MHz 597 MHz 603 MHz 609 MHz 615 MHz 621 MHz 627 MHz 555 MHz 639 MHz 645 MHz


SNR

41.0 dB 41.3 dB 41.1 dB 41.1 dB 41.3 dB 41.2 dB 41.0 dB 41.0 dB 41.4 dB 41.5 dB 41.3 dB 41.1 dB 41.0 dB 41.3 dB 40.6 dB 41.0 dB


Power

2.8 dBmV 2.0 dBmV 1.9 dBmV 1.9 dBmV 2.1 dBmV 2.1 dBmV 2.1 dBmV 2.1 dBmV 2.7 dBmV 2.9 dBmV 2.8 dBmV 2.7 dBmV 2.7 dBmV 2.0 dBmV 2.9 dBmV 2.9 dBmV


Modulation

256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM 256 QAM

 

Upstream

 

Index

1 2 3 4


Lock Status

Locked Locked Locked Locked


Frequency

30.6 MHz 24.2 MHz 19.4 MHz 37.0 MHz


Symbol Rate

5120 Ksym/sec 5120 Ksym/sec 2560 Ksym/sec 2560 Ksym/sec


Power Level

46.8 dBmV 48.0 dBmV 47.0 dBmV 46.8 dBmV


Modulation

ATDMA ATDMA TDMA ATDMA


Channel ID

3 2 1 4

Observer

Re: My Signals and T3 TImeouts

Just to update this thread, with a huge thanks to the pros here for helping.

No timeouts now in 40 hours and counting. I use to have 3-4 T3 timeouts a day and service was unreliable. Listen to the fine folks in this thread, they won’t steer you wrong.

Thank you to Spectrum techs and tech support as well.
Observer

Re: My Signals and T3 TImeouts

MsRaye,

 

Quick question. I just noticed on the 3-way splitter, the 1 output not being used isn’t covered. Should that have been capped or no? Will that cause an issue?

 

Thank you.

Expert

Re: My Signals and T3 TImeouts

Yes, It should have a 75 ohm terminator on empty ports.. they just don't have a clue....

 

Observer

Re: My Signals and T3 TImeouts

Thanks.

 

Can I pick up that 75 ohm terminator from local Spectrum office that’s close to me?

Highlighted
Observer

Re: My Signals and T3 TImeouts

Purchased 75 ohm terminator from Home Depot and installed. Hand tightened, then tightened down very slightly with wrench.

While I was at it, checked others and connection to wall plate needed to be tightened down slightly as well. All done now,

Thanks to all!

Established Sharer

Re: My Signals and T3 TImeouts

OK, good job with the termination and wrench.  Now you can reset the error counters to zero and we will grade you on how much you reduced the junk signals leaking in!