Openreach FTTC Line Attenuation v BTw Checker Estimate

I would like kindly big thanks to three next doors of mine who are on FTTC and are with EE, TT & BT except me on PN.

BTw estimate & line attenuation:

Next two doors house A with TT:
80 / 77.2 20 / 19 72.1
80 / 75.7 20 / 19 69.4
330 / 330 50 / 43.5 322.9
330 / 324.7 50 / 31.3 300.2
Their line attenuation 10.9dB @ 79999/19999 snr @ 6.7dB

Next door house B with EE:
80 / 74 20 / 19 67.8
80 / 73.8 20 / 19 67
259.8 / 188.5 39.5 / 18.3 164.5
215.6 / 154.2 27.3 / 13.6 140.4
Their line attenuation 12.0dB @ 79999/19999 snr @ 5.7dB

My house C with PN:
80 / 72.6 20 / 19 67
80 / 69.9 20 / 19 62.7
189.2 / 148.9 26.5 / 10.6 128
147.8 / 98.1 17.2 / 8.3 87.7
My line attenuation 11.1dB @ 80000/19999 snr @ 6.4dB

Next door house D with BT:
80 / 61.4 20 / 19 55
80 / 56 20 / 17 47.4
240.9 / 178.4 35.9 / 16.1 155.4
199 / 140.5 24.7 / 12 125.5
Their line attenuation 11.6dB @ 79999/19999 snr @ 6.0dB

Why is BT Estimate are so different to mine as both are higher on G.fast than my line? Even my line attenuation are proved lower! Doesn't make any sense at all? I have sent email to Openreach to explain why is G.fast so poor in my property even my line length are much shorter!

Edited by adslmax (Fri 02-Oct-20 21:11:01)

How do you know g.fast is so poor? Only way to really know is to sync a device using G.fast on each of the lines.

There is a reason the word estimate exists

I checked via BT Com, I was disgusted with the way their computer saying:

House A yes g.fast on Fibre 100 & Fibre 250
House B yes g.fast on Fibre 100 & Fibre 250
House C yes g.fast on Fibre 100 & no (my house) - why no Fibre 250?
House D yes g.fast on Fibre 100 & Fibre 250

But you have said, many, many times, you don’t want g.Fast.
So why do you keep on fretting about it ?

I do want G.fast on new line for my own pc room! Cos my daughter want to use her own line with FTTC for her xbox & netflix.

Here is BTw Estimate checker below & bt com checker - very poor on G.fast for my short line approx 220m from the pcp cabinet (250m to FTTC cabinet)

https://ibb.co/5vS5vPt

https://ibb.co/HG26Sn2

Will Openreach put new copper line on the new line in my pc room to improved G.fast for Fibre 250 to pop up on the BT Com checker?

Edited by adslmax (Fri 02-Oct-20 21:43:10)

Didn't you have G.fast installed at some point and then you ceased it during the cooling off period?

That could actually explain the difference.

Properties which have never had FTTC (or G.Fast) installed just show an estimate, from a computer model of line length which is pretty inaccurate, especially for G.Fast. Once the service has been delivered, there are real measurements which inform the checker of the line capabilities better than the model. Most likely, if your neighbours got G.Fast installed then their estimates would go down too.

But as been said many times before: who cares about estimates? Suppose your estimate was 150-330Mps, but you only got 150Mbps: you're still getting the best possible speed that G.Fast can provide over *your* particular line - and within the range given by the estimate.

Maybe it will also help to remember that you are in the very fortunate position of having solid full-whack 80/20 FTTC available. If you want to take yourself a second FTTC line, so that your daughter has full use of hers, you'll get a very good service. Many people will get much worse but still pay the same.

In reply to a post by adslmax:

I do want G.fast on new line for my own pc room! Cos my daughter want to use her own line with FTTC for her xbox & netflix.

Isn't FTTP being deployed in Cuckoo Oak?

Why would you want a G.fast contract now?

Edited by CarlTSpeak (Tue 06-Oct-20 11:31:56)

In reply to a post by CarlTSpeak:

Why would you want a G.fast contract now?

But BT say their computer say NO to G.fast 330/50