tt0ne
join:2008-07-13
Redlands, CA
| reply to RR Lily
Re: [TWC] Upstream Power is +56.5 dBmV, please help.
If you add splitters you will lose power on the downstream but you will also lose power on the upstream. Since your downstream power levels are well within spec (-2.3 is great!) and your upstream power levels are completely too hot, adding splitters will decrease your upstream power levels (which is what you want)... you can stand to lose some on your downstream because your levels are so good.
But like the guy in my thread noted - there is no way to fix one without affecting the other. Only Time Warner can do that. But, if you can use good splitters and good cables - and it doesn't affect your SNR too much - you could find a balance like I did.
Unfortunately, there is no way for you to know what your SNR is for your upstream. If you find adding the splitters makes your downstream SNR go below spec - then you'll just have to call Time Warner.
So, quick recap.
Add a splitter. You should see your power levels for both your downstream and upstream change - at least for me it did on my thread. If your upstream power levels go down to an acceptable margin without pushing your downstream power levels too far out of whack - and your SNR stays within spec - you could possibly find what you are ultimately looking for.
I think that's how it works - at least for me it did. I do know that adding the splitters made a big difference on the downstream power levels for me - I'm just not sure how much it affects your upstream - and the fact you can't see your SNR for the upstream either.
It can't hurt to try... if it solves your problems then awesome... if it doesn't - it's one more thing ruled out when you call Time Warner.
- Marco |
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daveinpoway
Premium
join:2006-07-03
Poway, CA
| Sorry, but I must disagree. Adding more splitters will only INCREASE the upstream power, which is already too high. The solution is to decrease the number of splitters between where the cable enters the house and the modem's input (ideally, you only want one splitter in the path here).
If the upstream remains above 50 dBmv with only one splitter in the signal path, a tech will need to come out. |
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