Sky LLU Adsl 2?

The exchange I am on doesnt have Adsl 2 but has Sky LLU.

Can anyone confirm if I would get adsl 2 speeds and if so what the max upload is ?

I ask as according to some line checkers, talktalk who are also at the exchange can provide up to 1.2mb up.

Sky LLU is their own hardware which offers ADSL2+ so yes ADSL2+ speeds would be available.

To give a fair idea what are the current stats from your ADSL router? Generally a more accurate guide than the telephone line checker databases

Downstream: 7.5 Mbps
Upstream: 448 Kbps

Noise margin (Down/Up): 6.9 dB / 26.0 dB
Line attenuation (Down/Up): 35.5 dB / 22.5 dB
Output power (Down/Up): 19.9 dBm / 12.0 dBm

Edited by deleted (Tue 16-Oct-12 21:24:33)

Any LLU invariably runs on ADSL2+ these days. Upstream is usually 1.1 - 1.2 Megs (some BTw based systems only give 888 K on Interleaved, but that's not Sky) unless you have a very fast line and can sacrifice some downstream to get an upstream of about 2.5 Meg with ADSL2+ Annex M. I don't know if Sky offers Annex M.

The fact that your exchange is not 21CN WBC enabled is irrelevant to LLU; it is only available on BTw based ISPs.

Very rare to see over 1Meg on Sky LLU ADSL2+ they tend to be conservative with upstream speeds

They do not do Annex M at all

in which case (despite p2p throttling) is talktalk likely to give me higher speeds as I can get the db reduced if my line is stable?

You'd get 11 - 12 Meg Down on ADSL2+, but Annex M is pointless for you.

10 to 13 Meg downstream connection speed
800 to 900 Kbps upstream

Sky start their systems at 4Meg and then slowly increase your speed over a few days to what they believe is the maximum, which is usually a little slower than the absolute maximum, but should be stable

Usually can get the line manually tweaked down with Sky. With Sky its a 15 minute phone call and they do it there and then (I know have done it twice) and with TalkTalk you just use their Member Forums.

In reply to a post by MrSaffron:

Very rare to see over 1Meg on Sky LLU ADSL2+ they tend to be conservative with upstream speeds

They do not do Annex M at all

This is untrue. If you get the broadband, plug it in, leave in plugged in for 10 days as advised then the default is 1.1 Mbps upload (this is nowadays). It wasn't this was a year or so ago...

If you ring up and ask them to 'uncap the line' or ask sky to tweak the line in ANY way, the default becomes around 765 Kbps (0.7 Mbps) unless you are on an over 18 Mbps speed.

If you just get SKY Broadband and do nothing you will see 1.1 Mbps upload. Unless it's totally unstable.
The automatic system (DLM) can also set speeds that give a 3db noise margin nowadays too

Edited by ukhardy07 (Thu 18-Oct-12 16:11:31)

You probably signed up over 12 months ago when DLM was slightly different.

Also I mean that Sky are no longer conservative with upload speeds. They are pretty standard now.
Sky do not do annex M. Excuse me that was a mis quote.

In reply to a post by ukhardy07:

You probably signed up over 12 months ago when DLM was slightly different.

Also I mean that Sky are no longer conservative with upload speeds. They are pretty standard now.
Sky do not do annex M. Excuse me that was a mis quote.

Before I moved to Sky fibre my upload speed on their ADSL2+ service was 12 Mbps down and 1.1 Mbps up.

Am I right in thinking that sky only offer a 6db line profile?

I want to get the maximum possible out of my line as fibre is unlikely to come for ages yet.

Noise margin (Down/Up): 6.4 dB / 27.0 dB
Line attenuation (Down/Up): 35.2 dB / 22.5 dB
Output power (Down/Up): 19.9 dBm / 12.5 dBm

Do you think I will be able to get better speeds with sky or bethere/talktalk as they allow lower profiles?

Balance would suggest slightly faster on TalkTalk, and a fair bit faster on Be.

All depends on how stable your noise margin is at night once you start using the extra frequencies from ADSL2+. Until you try you cannot tell.

Any estimates a provider gives you at sign up is an estimate, and should be treated with the same respect as you would do a weather forecast that says it is going to be warm and sunny on November 5th.