BT recently rolled out infinity to my area. I was previously getting around 16.5Mb on adsl, and Its around 300m to the cab, and a further 300 to exchange.
As I was getting a really good speed on ADSL I felt confident the line quality was good and could probably support the higher 74Mb infinity package.
Its been in a week now, and my sync speed is about 39Mb (plugged into NTE5 test socket).
Info from HH6
Data rate: 15.15 kbps / 39.45 kbps
Maximum data rate: 15150 / 45062
Noise margin: 5.9 / 5.7
Line attenuation: 20.9
Signal attenuation:
VPI / VCI: 0/38
Modulation: G_993_2_ANNEX_B
Latency type: Fast Path
Noise margin looks quite good, but I'm not sure about Line attenuation?
I suppose i need to get my hands on a HG612 to get any further useful data?