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Question of the Day: What's the most interesting small town you've visited in South Africa?
Stable 4Mbps connection?
- Thread starter dantex
- Start date
Gtx Gaming
Gtx Gaming
s.a internet will never be stable 
Yeah, guess I was asking for that!s.a internet will never be stable
Has anybody been able to sync at those noise and attenuation levels?
Gtx Gaming
Gtx Gaming
futher away you are from your local exchange , the more it will be out of sync, the best is build a house next to the exchange
futher away you are from your local exchange , the more it will be out of sync, the best is build a house next to the exchange
OK, thanks for dat!
Back to my original question...
Neo_X
Expert Member
OK, thanks for dat!
Back to my original question...
well inevitably you will have to drink the red pill, and find out how deep the rabbit hole goes. In other words move to Singapore and get a stable gigabit connection
kk back to the question it seems
well inevitably you will have to drink the red pill, and find out how deep the rabbit hole goes. In other words move to Singapore and get a stable gigabit connection
kk back to the question it seems
LOL!
You guys are killing me! =)
Theoretically, a 6Mbps connection should be possible at that attenuation level and a sub 50 level should prove to be a relatively stable 4Mbps connection.
Just wondering if anybody else has similar levels and what their experience is with the connection stability.
SNR changes with your line speed, so there might be someone with those stats, but that wont mean anything to you.
I take it that is your stats at the moment, what is your line currently sync'd at?
but with an SNR of 7, you are already grazing the acceptable line by a ball hair.
So I'd say no, you wont be able to upgrade your line even to a 1mb if you are currently on 384k/512k
EDIT: Re-reading your OP I might have gone in the wrong direction with that.
If it helps, I used to have a 1mb connection with an SNR or 6db and it was quite stable, that figure dropped to 2db at times and still not connectivity issues.
Thanks for the feedback.
I'm currently in a bit of a pickle, I applied for a new 4mb line using Telkom's DoBroadband 3 option, the line was activated last week Friday (no previous ADSL line) and I got a Line Verification SMS on Monday. But my router only ever got a Internet connection once, for a very short time.
Telkom is saying the Fourways area ADSL is down, so I can't tell yet if there is a line problem on my end. Guess I'll have to wait for it to come back up and test, if I can't get decent speeds, I'll cancel the line...
SNR is reported differently by different devices. Sometimes it is SNR (over some predetermined base) usually it is SNR Margin over current connection speed. My line attenuation is 47.0 db and my SNR margin is 13.1 db (I believe this number represents the margin over the requirements for my 4096 kbps downlink as reported by Netgear DGN-2000). ADSL infrastructure connection is perfectly stable on this line, at all times including huge storms during during rush hour.
Attenuation increases as distince from the exchange increases, to over simplify, it represents your distance from the exchange. Lower = better.
SNR can be thought of as signal quality. Determined by how much interferance (noise) there is on the line. SNR is all important
The higher the attenuation, the more chance there is of noise being introduced to the line along the way. (because the way is longer) (also signal is naturally decays over longer distances)
Your attenuation of 45 is not too high for 4096 kbps. My attenuation is higher than yours and mine works perfectly
My other D-Link router claims my line is theoretically capable of 7000 kbps. (of course opperating at the max theoretical speed means a re-sync each time a car drives past or a breeze picks up)
I had the issue where Telkom told me 4096 was not availalble at my address, it took 3 months and roughly 20 hours of telephone calls/e-mail typing to get my line changed to 4096. It worked perfectly with a SNR margin of 15 db over 4096, for 3 months. Then Telkom techs did something and SNR margin dropped to 2-3 db over 4096. Contant sync issues for 2 months. Got Telkom techs out and they did something (Changed the termination points at the local box and the exchange or somthing, who knows, they didn't explain it very well). Haven't had a sync issue in 6 months.
If your SNR is a margin of 7 over whatever you are syncing at right now, then expect sync issues during storms but your line should sync most of the time. If you are syncing at 512 now and want to go faster, then you will need Telkom to fix whatever issues are introducing noise on your line. You have too much noise, caused by, imperfect joins, water, EM interference, trees all sorts of things. Check where your streetside box is and see how your line is routed to this box. See if you could route it more efficiently. (assuming you are not on a radio link)
Just read your last comment. Remember to differentiate between an ADSL data connection and an ADSL infrustructure connection. If the line syncs and the ADSL light on your router comes on, you have a working ADSL infrastructure connection on your Telkom line, your line is syncing (working as an ADSL compliant link). Telkom has done their part. Only once your line has synced can you try to use the ADSL line to connect to an ISP who will provide you with a data service (internet connection).
Attenuation increases as distince from the exchange increases, to over simplify, it represents your distance from the exchange. Lower = better.
SNR can be thought of as signal quality. Determined by how much interferance (noise) there is on the line. SNR is all important
The higher the attenuation, the more chance there is of noise being introduced to the line along the way. (because the way is longer) (also signal is naturally decays over longer distances)
Your attenuation of 45 is not too high for 4096 kbps. My attenuation is higher than yours and mine works perfectly
My other D-Link router claims my line is theoretically capable of 7000 kbps. (of course opperating at the max theoretical speed means a re-sync each time a car drives past or a breeze picks up)
I had the issue where Telkom told me 4096 was not availalble at my address, it took 3 months and roughly 20 hours of telephone calls/e-mail typing to get my line changed to 4096. It worked perfectly with a SNR margin of 15 db over 4096, for 3 months. Then Telkom techs did something and SNR margin dropped to 2-3 db over 4096. Contant sync issues for 2 months. Got Telkom techs out and they did something (Changed the termination points at the local box and the exchange or somthing, who knows, they didn't explain it very well). Haven't had a sync issue in 6 months.
If your SNR is a margin of 7 over whatever you are syncing at right now, then expect sync issues during storms but your line should sync most of the time. If you are syncing at 512 now and want to go faster, then you will need Telkom to fix whatever issues are introducing noise on your line. You have too much noise, caused by, imperfect joins, water, EM interference, trees all sorts of things. Check where your streetside box is and see how your line is routed to this box. See if you could route it more efficiently. (assuming you are not on a radio link)
Just read your last comment. Remember to differentiate between an ADSL data connection and an ADSL infrustructure connection. If the line syncs and the ADSL light on your router comes on, you have a working ADSL infrastructure connection on your Telkom line, your line is syncing (working as an ADSL compliant link). Telkom has done their part. Only once your line has synced can you try to use the ADSL line to connect to an ISP who will provide you with a data service (internet connection).
So after 3 weeks of calling ADSL support everyday, escalating, re-escalating, then etting a colleague's wife to escalate to the office of the CEO, a friendly Telkom techie named Pierre sorted out a wiring issue at the exchange.
2 issues were evident:
Line was trying to sync at 10Mb. as I told every call center jockie I spoke to.
My SNR margin was shocking, at 6.
After Pierre did his magic at the exchange (dunno why the first techie, Hannes I believe, couldn't sort it), my SNR margin went from 6 to 12, not great but better I guess.
Attenuation is still at 46, means that I am roughly 3.3KM's from the exchange in Fourways.
I am now typing this post from my new 4Mb line, Telkom DoBroadband 3, yipee!
Now, to sort out that refund for a month worth of no ADSL...
2 issues were evident:
Line was trying to sync at 10Mb. as I told every call center jockie I spoke to.
My SNR margin was shocking, at 6.
After Pierre did his magic at the exchange (dunno why the first techie, Hannes I believe, couldn't sort it), my SNR margin went from 6 to 12, not great but better I guess.
Attenuation is still at 46, means that I am roughly 3.3KM's from the exchange in Fourways.
I am now typing this post from my new 4Mb line, Telkom DoBroadband 3, yipee!
Now, to sort out that refund for a month worth of no ADSL...
charlieharper
Expert Member
Yep, downloaded 3.6GB in just over 3 hours! Need to be careful...