Then it can't be an 'up to 8Mb' connection.

I suppose a pedant might suggest that the fibre connected folk get their data quicker, so the exchange line is more bursty, and less 'latency heavy' for the remaining non-fibre folk.

That's assuming the fibre folk don't max out the bandwidth in the way they did prior to fibre. Equally pedantic, we could argue that the heavy users are the cause of contention issues, rather than the exchange bandwidth.

In the unlikely event that all other subscribers on the cable that routes back to the exchange was to move to FTTC I would have thought you would get a slight improvement - as sole ADSL subscriber.
This is because there are no longer any ADSL signals running in the E-side cable from the cabinet back to the exchange. So any cross talk in the cables from ADSL will cease to exist and your ADSL signal can have the cable to itself.
So less noise, higher sync and hence slightly better download speeds.

Will be best for those near to the cab' so short D side and long E side with the D side not seeing much FTTC x-talk
Whether this will be noiciceable in practice remains to be seen - principally by me as I'm in exactly that position and have no current need for FTTC when it arrives.

Edited by deleted (Fri 28-Jun-13 15:35:37)

Cross talk from ADSL might cease to exist, but the cross talk from FTTC would be the replacement, hence the three different power masks used.

Sounds more like an upgrade from ADSL to ADSL2+

To take the other extreme, if none of your village go over to FTTC because of the anecdotes, none are likely to see any improvement.

=============================

Back in the early days of dial-up, 1970s, our long-distance connections, 350 miles, worked better and more consistently during the heavy daytime/working hours usage, than in the evenings and nights.

I suspect that this was because of greater consistency in noise levels, cross-talk etc, allowing the equipment to work in steadier conditions, compared with overnight, when generally the lines were quieter/cleaner, but any NOISE BURSTS would have a more drastic effect on the equipment, more frequently losing connection.

My impression is that this might still be the case.

In reply to a post by MrSaffron:

Sounds more like an upgrade from ADSL to ADSL2+

I think that was the case, if this makes sense:
Downstream 9,188 Kbps
Upstream 1,131 Kbps
Modulation G.992.5 Annex A
Latency type Fast
Noise margin (Down/Up) 7.8 dB / 6.4 dB
Line attenuation (Down/Up) 33.6 dB / 16.4 dB
Output power (Down/Up) 15.4 dBm / 1.7 dBm

We have recently had an FTTC cabinet installed at the top of the road and the high speed upgrade is now on offer.

Also for some reason - I would love to know why - my peak speed has increased from around 6M to 12M and my Sync speed is 13M. Also in several tests I have done downloading large files I actually get a sustained speed of 12M. (e.g 320Meg file in just over 3 minutes)

So something has got better recently.

I suspect that because FTTC is being installed there has been a general upgrade of the system.

OR

Some sort of upgrade of the cabling or hardware has taken place between my house and the exchange.

I see all the comments when this is discussed saying that ADSL "should not improve" but the fact of the matter is that it has.

Has anyone else observed this ?

Several possibilities.

The amount of noise has dropped considerably; a connection was remade, your pair might have changed ...

Unlikely that new cabling would result in the increase you have seen. Hardware changes again are unlikely to give a massive improvement.

Do you have before and after stats?

I am afraid all I have is my memory of the last time I did a test and also my memory of a set of weekly downloads that I do almost every week when doing web site backups.

This involved several files of up to 300meg and I know these used to take "a lot longer".

So I started off thinking oit was the FTTC cabinet itself but I realise now having read discussions on-line it cant be that so it has to be some sort of side effect.

I thought I would post and see if anyone else had seen a similar effect.