| reply to wayjac
Re: [CenturyTel]Can I estimate Distance and supported Speed? said by wayjac:said by GDRobins:I checked the specs on his dslam equipment. That Accessmax DMAX 2100 with ADSL 6+6H cards will support 8 Mb connections, as does my Westell modem. So does he just not know his equipment or is he lying to me? The connection from the dslam to the co may not have the capacity to support speeds above 3000kbps
On fiber-optic cable??? |
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 wayjacPremium,MVM
join:2001-12-22
Indy | Some isp's use copper to connect the dslam to the co |
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| said by wayjac:Some isp's use copper to connect the dslam to the co
They didn't here. They ran fiber right up to the remote dslam. I've got pictures of the fiber signs next to the dslams. Anyway... are you suggesting that they would take 40 customers with 1.5 Mb dsl connections and stuff them into a pipe with a 3 Mb capacity?  |
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wayjacPremium,MVM
join:2001-12-22
Indy | Your example is a extreme one but yes that has/can be done
The isp can use copper to connect the dslam to the co and the capacity of that link limits the speeds offered to customers
My isp uses it's distance database info to offer dsl speed plans, but will make changes once the dsl is up and working |
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| reply to GDRobins
said by GDRobins:Is there a method to estimate distance from the dslam based on modem statistics. Centurylink keeps canceling my request for 10 mbs service and telling me that I can not expect service above 1.5 mb because their data base says that I am 16,400 ft from the CO. That is the distance to the CO in the closest town to my town because my small town doesn't have a CO.
I happen to know that about 5 years ago Centurylink disconnected our copper to that community because they ran fiberoptic cable from that CO to our small town. At the same time they put new copper in the ground linking us to the new fiber in our town. I figure they simply have an outdated database, but I can't convince them of that fact.
Here are my Broadband Statistics
DSL____________________Down_______Up
Current Rate:_________3200 kbps___512 kbps
Current Noise Margin:___31.0 dB_____27.0 dB
Current Attenuation:____11.4 dB______7.0 dB
Current Output Power:___15.8 dB____12.3 dB
The modem (a 2701HG-D) also reports this statistic right below the Current Rate statistic
Max Rate: 12660 kbps 1080 kbps
And we are done. Circuit measurements showed that I am not 16,400 ft as they claimed... but 4,700 ft. The circuits have been dialed up and here are the new statistics.
DSL____________________Down_______Up
Current Rate:________12124 kbps___861 kbps
Current Noise Margin:___28.7 dB_____21.8 dB
Current Attenuation:____13.6 dB______6.6 dB
Current Output Power:___17.7dB____12.3 dB
AND
Max Rate: 25977 kbs 1324 kbs |
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 tstolzePremium
join:2003-08-08
O Fallon, MO
kudos:1
 ·Charter
 ·CenturyLink
| Good news! 
Did you go through Joey? If not let us know how you were able to get someone to look into this...It will help someone else in the future..
--
Ofallon, Mo Weather
St. Peters, Mo Weather |
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| reply to GDRobins
I am 8500 Ft and have a 10 meg line without synch problems... |
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| Things like this slay me. You've got 10mbit at 8500ft (congrats, I'm jealous), but 3500 feet further and I supposedly can't get more than 3mbit.
BS. There's no way it falls off that much over that distance. CTL is way too conservative in some places, with what they can provide. |
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4 edits | Found this at »www.internode.on.net/residential···ormance/ It shows bitrates based on the protocol and distance. If you click the link you will find whatever qualifiers internode thought were applicable to this chart
Note the distance is expressed in meters so divide your distance in feet by 3.28 to figure out how many meters out you are. Possibly we can open discussion on what is really limiting CL's assigned bandwidth.
my distance at 4700 ft is 1432 meters
TheSargSter at 8500 ft is 2591 meters
pwtenny at 12000 ft is 3658 meters
On the graph, the blue and green shaded areas show the theoretical maximum speeds you can obtain on Internode Extreme, Easy Broadband and Easy Naked services (when delivered via an Agile DSLAM). This shows the effect of distance from your local telephone exchange, and the use of either an ADSL1 or ADSL2+ broadband modem. |
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