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Originally Posted by James Henry
See the previous, Ofcom are guessing and extrapolating while the BSG data is alledgedly from the operators themselves.
A quick look at adslguide shows a user at 4.1km receiving over 8Mbit.
http://img426.imageshack.us/img426/8...60608124na.jpg is at least 1.4KM long, looking at the stats and depending on the effect the router could have I'd say about 1.7 (attenuation @ 300khz / 10) and shows 20Mbit. |
I think ofcom used the formula that actual line distance compared to straight line is 1.4 or 140%, personally I think that seems too low. I wonder if BT are using as crow flies as their figures are higher.
Yeah I know its very possible for longer lines to over perform, but because also lines under perform its best to assume they cancel each other out.
---------- Post added at 19:02 ---------- Previous post was at 19:00 ----------
Hmm he got a very low attenuation, how sure is it that the line is 4.1km with a 24 attenuation. 20mbit is impossible at 4km no matter how good the noise.