After switching to BT fftc from adsl my speeds haven't increased hugely... I bought the upto 52Mbps package.... though I notice the speed quotes was between 20-14.4 Mbps. I hoped this would be throughput speed.
The sync speed is actually pretty much constant 18.41 Mbps... the Line attenuation with fttc is 27.6 dB (Noise margin: 6.1 dB / 6.4 dB)… but I have been monitoring the speed (http://www.speedtest.btwholesale.com/) at various times of day (using test socket) for the last week and download varies between about 6.5 Mbps to 12.5 Mbps .
If I compare this to my previous non fibre adsl (sync Speed: 5.248 Mb/s, Line Attenuation: 46.3 dB / 29.5 dB, Noise Margin: 8.2 dB / 11 dB), So going to fttc has about halved the Attenuation… and 2+ times the speed (at 3x the cost)
Obviously a main part of the problem seems to be the copper part of the line…
a BT engineer came out and recrimped some of the wires …. But the speed stayed about the same and after he “fiddled” in the street cabinet (750m away) "on his way home" I noticed that the attenuation has actually increased to a steady 30db.
i) The BT helpdesk insist that I use http://www.speedtest.btwholesale.com/... Which actually is reporting slower (& variable) speeds – 6-12Mbps) than other speedtests (thinkbroadband shows downloads 15 Mbps)… I wonder why the BT one varies so much while the thinkbroadband speed test is pretty constant and faster?
ii) I wonder which measurement BT use when they say “you may be entitled to cancel your broadband contract without paying a charge for ending it early” if your line speed is significantly lower than the estimated range… the sync speed or the speedtest speed?
I feel my best bet at the moment it to get them out again to see if they can reduce the attenuation at all and then, as they are still faster than normal adsl ,... stick with them until the end of my 12 month contract and see what deal I can get then?
thanks for any help