If I wanted my SNR to go down to about 3 dB, what number should I try to start with?

If your target SNR margin in the DSLAM is set above 9db you're unlikely to get down to 3db with tweaking and even if you did, you're not leaving any room for dealing with nightime noise. Like I said in my first post, I can't tell you what value to use, experimentation and testing is needed based on what you already know about your line conditions.

My default target as set by BT is 6, to get onto the next IP data rate I've lowered this to 3 using my Belkin 7633, I've a long but very quiet line, SNR never varies more than 1 dB regardless of time of day. I've bought a speedtouch 536 on Ebay (

Edited by 7cfm (Tue 23-May-06 15:44:30)

Got my 536 today. I can see why it was on DSL Depot cheap - its semi faulty! Half the time the power flashes red/green and it doesn't work :|

Anyway, have it working now, first hop pings are 4-5ms higher than the 7633 but it is a few 100 kbs better off in sync. DMT tool is pretty neat! Seems so far to be holding 6db solid but I'm not sure how many decimal places it goes to? The belkin would show 6.1,5.9 etc, this has shown nothing but 6db in 4 hours...?

EDIT: Soon as I reply it drops to 5.5db!

How do you do that SNR graph? I cannot see how to turn snmp on?

Edited by deleted (Tue 23-May-06 16:03:00)

There should be a 30 day warranty from DSL Depot, if it's faulty, send it back. I use ADSL Monitor to make SNR graphs and sometimes use the CSV output from that in M$ Excel.

In reply to:

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SNR never varies more than 1 dB regardless of time of day

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lucky sod

Same here goes from 5.5 to 6.5 *whistles*

Yeh, isn't he, half!

Oops, it's 5.11pm and my router's just started disconnecting. Looks like that's me off the air until tomorrow.

Thanks.

Did you have any issue with the V6 firmware? When I do it on mine I let it reset to default config but now it doesn't have a profile for UK Broadband (I can only choose routed PPP or bridged)
I could do it myself but there are no options in the web config - I'm guessing its a telnet job?

Use the Setup Wizard, select Routed PPP, then you can pick 0.38 as your VPI/VCI from a drop down menu, and below that choose PPP over ATM...sorted