Bicephale
join:2005-09-24
 ·TekSavvy Solutions..
| reply to rseiler
Re: SpeedTouch 516 Tweaking :)
Hi RSeiler,
I can understand that the GNet BB0060B wouldn't do
the job at your level of attenuation but i own one
myself and it's doing better than a SpeedTouch 546
at 31.5 dB, not to mention that 'DMT' can generate
24 h "noise" curves which are more useful than the
ST's instantaneous spectrographic snapshot for the
purpose of confirming an intermittent problem. It
will let you do some "Bandwidth Shaping" if you're
willing to copy the setup from this 'DMT' capture:
http://www.dslreports.com/forum/remark,17700525
Maybe it will still fail but you'll "see" what you
couldn't put a finger on before... Now, about the
v6.1.0.5 FirmWare, i've tried it all starting from
v5.3.3.4 and i didn't keep it installed for a long
time so don't loose your mind over it, life is too
short... The phone extension is another thing you
should get rid of pronto: use extensions for your
LAN path instead since it can reach up to 300'!...
Of course, if you were clever enough to filter out
the whole phone wiring right at the entry point it
should help; lets hope the landlord is a relative
of yours! Don't forget that even when unused, the
phone wiring inside the walls would behave like an
antenna and pick up A.M. radio interference, hence
the need to go to the demarcation box if possible.
New FirmWares:
FirmWare version v6.2.17.5.0 variant "EI" (UK)
FirmWare version v6.2.17.5.0 variant "AA" (Int'l) <-- Try this one 1st and save setup! |
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rseiler
join:2001-11-01
| Just a quick follow-up here before I disconnect again: Eliminating the phone splitter bumped the Downstream SNR to 12.5/13, depending on when I look at it. How high does it have to be before it's no longer borderline?
What is the significance of the "Number of resets" in the yellow section on the right of DMT's page?
The setup here from the demarcation box is one line going to the apartment (where there's a phone behind a filter), and the other line going to an office in another part of the building. It's in the office where I have the PC and the splitter: one half going to the modem (over that soon-to-be gone 15ft cord) and the other half going to a multipurpose printer (with FAX), which is behind a filter. |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| An 8 dB DownStream SNR margin with around 60 dB attentuation
is a cause of concern, 12+ db with only 40 dB shouldn't be.
This is what i consider the ideal wiring for people in homes:
»Re: Feed-Back from a grateful customer!
If you can get close to that then there may be good hope... |
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rseiler
join:2001-11-01
| Thanks for the link! I think the problem with using a DSL splitter at the point of demarcation is that it would block any possibility of having a phone in the office (the DSL side of the split).
Eliminating the 15ft-cable OR locating the modem in the apartment on the other line (I tried both) bought me another 3 or 4dB, so I'm up to 17 now. Since you say 12/40 should be enough, I'm fairly confident this will work. I'll report back. |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| 
Antenna array in red! |
Can you see the anntena array better now?
 |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| reply to rseiler
Lesser Parasitic Components (Antenna, etc.) |
 |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| Any comments about one of these ST5x6 CLI commands?
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| %20ANSI%26SS%20Tweak%20.PNG "4421 bytes")
ST5x6 (v6.2.17.5-AA) Experimental Tweak |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada | So you have more download from the upload part?
I thought that was an ADSL2+ Feature |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| Hi TilHasBB,
This graphic is made of superposed 'STMT' captures
which i accumulated over a couple days while i was
testing FirmWare v6.2.17.5-AA (Int'l). Raw speeds
displayed by 'STMT' were unchanged (5056/800 Kbps)
despite the split bands below 138 KHz but i didn't
try to verify that those numbers really matched by
evaluating my effective transfer speeds... At 1st
glance, this MoDem Option seemed to work well: my
DownStream RCO was quite steady at 60 % but then i
started to experience multiple disruptions, my SNR
margin went as low as 8.5 dB and i finally lost my
connection with TekSavvy. As a consequence, i put
back my GNet BB0060B MoDem on-line with a Twin PPP
configuration to help with troubleshooting then it
turned out that i could recover access thru VelCom
only, which abruptly put an end to this testing...
As far as i can tell, ANSI T1.413 allows alternate
bandwidth shapes but it may as well be a defect in
Thomson's SpeedTouch FirmWare or (why not) 'STMT'.
 |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
3 edits | reply to TilhasBB
Hi TilHasBB,
Do you know ST users with ADSL2+ who can try this:
I'd bet MoDemOption Register 8 Bit 1 is for SRA... |
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TilhasBB
Formally Goden99
Premium
join:2000-08-05
canada | Don't have Adsl2+ or know anyone who does  |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| Hi TilHasBB,
Oh i'm so glad, you ought to see this! It appears
BoxFan just released 'STMTv0.7.2' and he added the
feature which i've submitted to his attention: 24
hours noise records are now on their way to become
a reality with the SpeedTouch series! I'm crying!
 |
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Sdgaman21
@teksavvy.com
| I have a problem with a firmware upgrade I downloaded. It's the latest firmware, but it ever since I upgraded, I can't stay connected to my counter-strike games. Every time I go to speedtouch.lan it shows as another model, so I was just wondering how I can downgrade to the original firmware that I had when I got the modem? I opened the ports for counterstrike, and googled up my program and it seems people with speedtouch modems that upgraded their firmware also have the same problem, and I have been dying to find out how to downgrade back to my original firmware!
Thanks for the help! |
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Bicephale
join:2005-09-24
·TekSavvy Solutions..
| Hi Sdgaman21,
You should find all the information required here:
»Re: My experience with Velcom so far...
»The SpeedTouch "BootP Reset" recovery procedure
If i understood correctly, FirmWare v6.2.17.5 does
not appear to bring stability to everyone. That's
quite interesting to read, i wondered what it felt
like for other SpeedTouch owners! Well, it leaves
you v5.4.0.14 i suppose. Perhaps the ST is better
for those who are lucky to get access to ADSL2+...
Or maybe you got needs better served by in-between
versions, it's possible since i have modest needs.
Hummm... But some troubleshooting would be needed
here, we don't know the model/version and it's not
clear what type of disruptions you have, actually.
Perhaps the ATM/DSL/PPP link isn't failing at all,
did you disable the Web Browsing Interception (aka
Differentiated Service Delivery in a CLI session)? |
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Angelo_
The Network Guy
Premium
join:2002-06-18 | reply to Bicephale
download link for STMTv0.7.2? |
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Bicephale
join:2005-09-24 | It's now v0.7.5 and it shows up in BoxFan's late signature. Use this link for updates:
http://modemtool.de/download.html
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Angelo_
The Network Guy
Premium
join:2002-06-18 | i'm having issues upgrading my 516... how do i do it.. maybe i'm doing it wrong :/ |
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Bicephale
join:2005-09-24 | Sorry, i don't see what information is missing...
Though, TFTPD32 may help you to provide us clues! |
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sammyj
join:2004-09-07
m3h | reply to Bicephale
What exactly is the purpose in spectral shaping, and how do I go about doing it. |
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