asubaseball727 Posted January 28, 2006 CID Share Posted January 28, 2006 Well I called Comcast, and they said that they would have to send a tech out to look at the signal. But then they run the crap about a 50$ fee if its not their problem, so judging from what I've posted do you think it IS their problem? Or is there a way I could test the signal? He was telling me how theire "High tech tools" would only be able to do the job. I have discussed this seemingly unresolvable issue in these topics: This is the most recent link: http://www.testmy.net/forum/index.php?topic=11306.msg112073#msg112073 Also, http://www.testmy.net/forum/index.php?topic=11134.msg111849#msg111849 Finally, http://www.testmy.net/forum/index.php?topic=10174.new#new those are my problems. Thanks for input. Quote Link to comment Share on other sites More sharing options...
x FiReMaN x Posted January 28, 2006 CID Share Posted January 28, 2006 http://192.168.100.1/ go there, click signals and there you go. Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 Ok thanks... I got the numbers, but what do they mean? What should I look for? I appreciate the help, thanks Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 ???? Quote Link to comment Share on other sites More sharing options...
FGOKURULES Posted January 29, 2006 CID Share Posted January 29, 2006 Frequency 711000000 Hz AT LEAST Signal to Noise Ratio MORE THAN 30 BUT UNDER 40 Power Level 3 dBmV BUT NOT OVER 5dBmv Quote Link to comment Share on other sites More sharing options...
FGOKURULES Posted January 29, 2006 CID Share Posted January 29, 2006 Thats what you should have to get a good signal.. if not thats there problem not urs Quote Link to comment Share on other sites More sharing options...
dn0 Posted January 29, 2006 CID Share Posted January 29, 2006 Frequency 711000000 Hz AT LEAST Signal to Noise Ratio MORE THAN 30 BUT UNDER 40 Power Level 3 dBmV BUT NOT OVER 5dBmv Thats what you should have to get a good signal.. if not thats there problem not urs Actually the downstream range in the Docsis protocol can be anywhere from 88-860MHz. The ISP can pick and choose in that range. You are correct on the SNR - about 29dB minimum in 64QAM and 32 minimum in 256QAM modulation. The operational range is technically -10dBmV to +10dBmV. (-5 to +5dB would give you better overhead all the way around). asubaseball727, are you going to post your levels from the diagnostic page? Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 sure, give me a tic Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 Downstream Value Frequency 705000000 Hz Locked Signal to Noise Ratio 32 dB QAM 256 Network Access Control Object ON Power Level -11 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading Upstream Value Channel ID 7 Frequency 32000000 Hz Ranged Ranging Service ID 597 Symbol Rate 3.200 Msym/s Power Level 49 dBmV Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 Signal to Noise Ratio MORE THAN 30 BUT UNDER 40 Power Level 3 dBmV BUT NOT OVER 5dBmv Both those are different. So it is their problem? Quote Link to comment Share on other sites More sharing options...
dn0 Posted January 29, 2006 CID Share Posted January 29, 2006 Signal to Noise Ratio MORE THAN 30 BUT UNDER 40 Power Level 3 dBmV BUT NOT OVER 5dBmv Both those are different. So it is their problem? Your downstream level is on the low side (-11dBmV) although this isn't always a problem. An increase in downstream power would most likely give you a better SNR (which is at the minimum level now). How many splitters and what type(2 way, 3way, etc.) do you have between the pole or box outside and your cable modem in the house? Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 I have no clue. If you can describe it a little more ill go and take a look. Thanks Quote Link to comment Share on other sites More sharing options...
dn0 Posted January 29, 2006 CID Share Posted January 29, 2006 I have no clue. If you can describe it a little more ill go and take a look. Thanks Below is an example of a 2, 3 and 4 way splitter. There is also an eight way. (most common types) I am wondering what size and how many you have in line between the from the back of your home up to the back of the modem. Each splitter port has a certain signal loss; the fewer splitters, the better. You may have too many in line and a simple re-configuration of the splits may help you out. Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 ok, there is a 2 way splitter, which then hooks up to a four way splitter. Are the cords for the internet the same as the cable TV cords? There are 5 TV's and 2 computers with cable at my house. Thanks, I hope this is the info you need. Quote Link to comment Share on other sites More sharing options...
dn0 Posted January 29, 2006 CID Share Posted January 29, 2006 ok, I'm pretty sure that there is a 2 way splitter, which then hooks up to a four way splitter. Are the cords for the internet the same as the cable TV cords? There are 4 TV's and 2 computers with cable. Thanks, I hope this is the info you need. That sounds correct. Yes the cable for the modem is the same as the TV cable. Look at the attached (poorly made with MS Paint) diagram. Is it wired similarly? The 2-way should be first, then one leg feeds the modem and the other feeds the 4-way going to the TVs. edit: updated diagram Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 Ok, Im workin on this now I'm seeing what cords do what, and its confusing because the person who lived in the house before had no clue what they were doing.. Theres about 10 extra cords and a couple splitters so I'm trying to see whats what. T Thanks Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 This is weird, on the 2 way splitter, I unplugged both the cords that come from the 2 way splitter, and both knockout the TV, but neither takes out the internet. Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 So i guess i found the wrong splitter? I dont really have a clue where else it could be. I'll have to take another look. Quote Link to comment Share on other sites More sharing options...
FGOKURULES Posted January 29, 2006 CID Share Posted January 29, 2006 It seems you have signal loss.. You need a good dedicated line to your cable modem, or a house Amplifier from comcast. Which they charge you about 50bucks for,, Comcast state in their Customer Agreement that They are only responsible for 4 sources on the user end... Which means after YOU connect more than 4 things to your cable line YOU NEED an amplifier.. which they are NOT entitled to just giving you... I mean i Have 2 Tv's and a cable modem on my line.. it seems you have 5 items on yours.. Quote Link to comment Share on other sites More sharing options...
asubaseball727 Posted January 29, 2006 Author CID Share Posted January 29, 2006 So if they came out, would there be something they can fix? Or would they just charge me 50$ and say its not their problem? Quote Link to comment Share on other sites More sharing options...
FGOKURULES Posted January 30, 2006 CID Share Posted January 30, 2006 Well it depends, if it did any extra wiring in your house other than what they originally did then yes, it's YOUR problem then. But if it's outside your house they would have to fix it. Like I said if you have more than 4 items plugged to the cable line comming to your house, and they say you have signal loss. You WILL HAVE TO PAY for the amplifier...Or find one of your own.. Quote Link to comment Share on other sites More sharing options...
FGOKURULES Posted January 30, 2006 CID Share Posted January 30, 2006 Or you could have bad Cable Splitters, Bad splitters would cause signal loss too. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.