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Power Level Range
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Old 10-04-2012, 08:59   #1
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Power Level Range
Morning all,

I was wondering if anyone knew what range the up and downstream power levels should fall between on the 50MB service.

I am not using the superhub if that has any bearing on the figures.

My upstream is currently: 45.25
My downstream is currently: 6.54

I ask as i have had a lot of issues the last 2 months and wanted to keep an eye on the power levels.

Thanks in advance.
SOS
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Old 10-04-2012, 09:53   #2
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Re: Power Level Range
This might be of some use...

http://community.virginmedia.com/t5/...11/td-p/846181
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Old 10-04-2012, 11:29   #3
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Re: Power Level Range
I'm scheduled for an engineer visit tomorrow A.M. 500gb TIVO "installation". 30 to 60mb BB upgrade to be done at the same time. Reading on these forums that the power levels on my SH are too high. Currently between 8.0 and 8.5 over the 4 channels. Will I have 8 downstream channels after the upgrade and if so will those levels put the SH over the 33dBmV threshold?

Thanks.
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Old 10-04-2012, 16:58   #4
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Re: Power Level Range
Quote:
Originally Posted by SOSAGES View Post
Morning all,

I was wondering if anyone knew what range the up and downstream power levels should fall between on the 50MB service.

I am not using the superhub if that has any bearing on the figures.

My upstream is currently: 45.25
My downstream is currently: 6.54

I ask as i have had a lot of issues the last 2 months and wanted to keep an eye on the power levels.

Thanks in advance.
SOS
Your pwer levels are within spec for both downstream and upstream. What is your snr like?



Quote:
Originally Posted by jempalmer View Post
I'm scheduled for an engineer visit tomorrow A.M. 500gb TIVO "installation". 30 to 60mb BB upgrade to be done at the same time. Reading on these forums that the power levels on my SH are too high. Currently between 8.0 and 8.5 over the 4 channels. Will I have 8 downstream channels after the upgrade and if so will those levels put the SH over the 33dBmV threshold?

Thanks.
you wont have 8 downstream channels after the upgrade. The superhub is capable of using 8 bonded channels and you will probably be using 3 or 4 of them atm. They are going round bonding more channels by area but there is no way you will be using 8 channels tomorrow, I think they will save that for 200mbit next year. If you are using 4 channels now I am very confident it will stay the same tomorrrow (or maybe go to 5). All the dude coming round will do is maybe check your power levels and make a phone call to get you provisioned for 60mbit. With your power levels being so high will either move your tap point in the cabinet or put an attenuator on your modem.
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Old 10-04-2012, 19:02   #5
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Re: Power Level Range
Hi - sorry for being stupid how do i check my SNR? i had a look at the modem config but could not see anything obvious that screamed SNR.
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Old 10-04-2012, 19:07   #6
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Re: Power Level Range
RxMER?
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Old 10-04-2012, 20:50   #7
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Re: Power Level Range
it should be the next thing after power and as Craig says, RxMER. As a clue, it should be something like 37db
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Old 12-04-2012, 15:24   #8
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Re: Power Level Range
ahh i get ya thanks.

Downstream is 36.84
Upstream is 45.75
hopefully that looks ok
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Old 12-04-2012, 16:32   #9
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Re: Power Level Range
yeah thats good
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