d_l
Barsoom
Premium,MVM
join:2002-12-08
Reno, NV
| reply to imsystem
Re: [Line Problem] Cant upgrade but im close enough
Something is strange here.
This: "Signal Attenuation (0 to 127 dB) 24" means that your line is relatively short. Short enough that it should qualify for any speed plan. BTW, the line distance estimator here at DSLReports is very approximate and almost always grossly underestimates the actual wire distance, but that attenuation reading agrees with a short loop length estimate.
This: "Transmitted Signal Power (-31 to 31 dBm) 17" means your modem isn't even using all the power available to it. It could go up to 20.0 dBm if it needed a better signal at your phone jack.
This: "Max Attainable Bit Rate (Kbps) 2880" means your line simply can't handle 3008 sync speeds, but that is in extreme disagreement with what a typical 24.0 dB line attenuation can do.
Is there any chance that you have the modem wire plugged into t the wrong side of one of the dual-jacked, microfilters? I'm trying to see why your line's potential speeds are so anomalously low. |
|
David
No,there is another.
Premium,VIP
join:2002-05-30
Granite City, IL
clubs:
 ·DIRECTV
 ·magicjack.com
 ·AT&T Midwest
| The other thing I am curious about is why is your capacity so high? 57% at 1536 and according to the modem 100% would be 2800. That seems to be a bit high (or low) for a line that has a 24db signal attenuation. my first thought would be a really old or bad modem. I have seen really bad wiring inside a premise do this as well. Although i will have to agree with d_l  as well, you don't have it plugged into the phone side of the filter do you?
WCS is plug it in at the nid and see if you can get a reading from outside (depending on modem).
--
If you have a topic in the direct forum please reply to it or a post of mine, I get a notification when you do this.
Koetting Ford, Granite City, illinois... YOU'RE FIRED!!
|
|
d_l
Barsoom
Premium,MVM
join:2002-12-08
Reno, NV
| David at the time I wrote the above, the wrong side of a microfilter was all I could think of that might cause the strange conditions, but with more thought I concluded that phone side of the filter would raise the attenuation much higher than 24.0 dB so I don't favor that idea now.
If a passive problem (something like a wrongly connected filter) isn't the problem, then maybe an active and continuous RFI source is cutting down the line's maximum capacity. This sort of problem wouldn't affect the attenuation.
The modem maximum sync tool: »SBC DSL FAQ »How can I check for the maximum attainable sync speeds with a 5100b/4100 modem? might show if something like this was the problem. The tone bin loads might have a "chewed up" or even a "picket fence" look if there was an interference problem. |
|
imsystem
join:2004-04-02
Red Bluff, CA
| Downstream Maxrate (Estimated): 2608
Upstream Maxrate (Estimated): 690
Bit tones with notches/missing bits:
bit(s) 38 163.875 - 168.1875 KHz
bit(s) 51:52 219.9375 - 228.5625 KHz
bit(s) 62 267.375 - 271.6875 KHz
bit(s) 110 474.375 - 478.6875 KHz
bit(s) 113:115 487.3125 - 500.25 KHz
bit(s) 142:255 612.375 - 1104 KHz
»www.hostmystuff.net/myimage/albu···blin.png
there is the info from my tech readout but i have no clue what I'm seeing other than the max rates.
i checked the phone plug and its plugged in correctly. One thing i noticed is the phone line to modem goes under the flouresent lights in the room. Would that affect this. |
|
