Line is 5.61km. Here are the current stats as reported by the router:

Noise Margin: 14.0 dB 16.0 dB
Output Power: 17.5 dBm 12.0 dBm
Attenuation: 63.0 dB 31.5 dB

That's down then upstream.

OK, so 14db snr is good enough on a 512 long line.....that'd get an FNF from me (based on that alone anyways )

Yeh it's 14db now, after a couple of CSE visits. It was 10.5db. I always joke with NTL that BTWS need to replace their keyboards that "limited layout" (the keyb's with FNF, NFF, RWT buttons) and actually replace them with keyb's that allow their testers to write something meaningful. Then again that might be hoping for too much,

Trust me, we put the data on the job notes, it seems that no one takes any notice, or relates this to anyone else.