Come on you splendid and erudite people - there MUST be many who have heard whispers about aluminum in the area from BT.
Thanks also to the General - when you remember the dB is a logarithmic scale it does show what a vast difference there is in the signal.
I also believe Tweedman is correct in saying some of this brittle rotting aluminium was only 0.4 mm in the first place. It's a pity BT were too shy to provide figures for that.
Kind regards,
Walter
Hi Walter,The problem is that most cabinets have 0.4 e side conductors which i would say is mainly copper but some aluminium still exsists.I will give you an example of how poor even copper is when its only 0.4.My own line is approx 2.7 km in lenght,1.3km to the cabinet on 0.4 copper with a db of approx 30.The d side is 1.4km on 0.6 copper and has a db of approx 13 giving me a total of 43db,shows what a big difference the conductor size makes.These figures are spot on correct as i have measured them personally.
Hers a copy of my line stats.
Line Mode G.DMT Line State Show Time
Latency Type Interleave Line Up Time 02:19:38:04
Line Coding Trellis On Line Up Count 1
Statistics Downstream Upstream
Line Rate 7808 Kbps 448 Kbps
Noise Margin 11.6 dB 22.0 dB
Line Attenuation 43.0 dB 22.0 dB
Output Power 19.8 dBm 12.3 dBm
K (number of bytes in DMT frame) 245 15
R (number of check bytes in RS code word) 20 16
S (RS code word size in DMT frame) 1 8
D (interleaver depth) 64 4
Super Frames 14322485 14322483
Super Frame Errors 392 70
RS Words 1947858024 121741105
RS Correctable Errors 15045289 10764
RS Uncorrectable Errors 7633 0
HEC Errors 322 0
OCD Errors 1 0
LCD Errors 0 0
ES Errors 0 0