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Lightning7

join:2013-02-02
Brunswick, OH
reply to hyelton

Re: Internet Issues

Your signal levels are off especially your upstream is way to low. this has to be within 37-52 dbmv, low to mid 40's preferred. mine is usually around 43 sometimes 42 dbmv. and downsteam power level at 0 which is the optimum level. 10 dbmv might be alittle high but it's still within spec.



heels_fan
1.20.09 The start of Socialism
Premium
join:2003-02-07
Columbia, TN
kudos:1

said by Lightning7:

Your signal levels are off especially your upstream is way to low. this has to be within 37-52 dbmv, low to mid 40's preferred. mine is usually around 43 sometimes 42 dbmv. and downsteam power level at 0 which is the optimum level. 10 dbmv might be alittle high but it's still within spec.

If his CableCo would fix his downstream levels, it would get his upstream a little more respectable.

Wonder why the downstream freqs are not in 6Mhz steps?
--
everyone is born ignorant. some are born stupid, others achieve stupidity and the rest have stupidity thrust upon them.


DrDrew
That others may surf
Premium
join:2009-01-28
SoCal
kudos:15

said by heels_fan:

If his CableCo would fix his downstream levels, it would get his upstream a little more respectable.

He has a direct drop to tap, no splits and possibly no ground block:
said by hyelton :
I DONT think its anything to do with at my house as The Cable to runs into my Modem runs directly out a window and to the power line and always has.
Most systems are designed to have at least a 2 or 4 way splitter installed for proper levels. Areas with larger homes are designed with bigger splitters in mind. Areas with long distance between the tap and the home also get such levels. In this case, install an 8-way splitter or 10dB attenuator in and the signals will be pretty good for down and upstream.
said by heels_fan:

Wonder why the downstream freqs are not in 6Mhz steps?

They are in 6 Mhz steps (93 99, 105, 111), they're just not listed in frequency order.

I'd like to see the logs of the modems. It may help shed some light on the modem sync losses.
--
Two is one, one is none. If it's important, back it up... Somethimes 99.999% availability isn't even good enough.