On 01/10/12 11:27, Phil Thompson wrote:
The last one is the killer - loop attenuation of 60 dB implies 4 to 6 km of wire from you to the exchange.
Postcode is PE1 5XF. SamKnows reckons I'm 2.33km from the exchange as a crow flies.
I had a quick check to see what PlusNet would offer us and they reckon 5.5Mbps+ which I assume is based on the same distance figures so maybe there's a local problem. (I'm pretty tempted to spend £7/mo on PlusNet and see what I get; if I don't take up their offer of a "free" router there's no minimum contract period, although there is £25 setup. My router will load share between two connections if I keep them both online anyway.)
I'm assuming FTTC "superfast broadband" isn't available in your location, which would reduce the copper loop length to the distance to the cabinet rather than the exchange.
Not available or planned, sadly.
If the 60 is for real and the best available your only hope is to reduce the SNR margin and trade for some extra speed and possibly reduced stability. I don't know what O2's stance on this is, but the exchange kit could bet set to 6 dB and give you maybe a meg or so extra. 3 dB is also possible. If O2 won't play there are some routers that allow you to tweak the SNR margin down from the target, don't know if your will do that - "SNR tweaks" in a search engine perhaps.
I'll chat to O2; I definitely used to get more than we get now so that gives me something to get started with.
The high ratio of upstream to downstream speed just reflects the use of lower frequencies for the upstream - they're attenuated less so haven't fallen off the cliff edge yet whereas the downstream speed is a long way off its peak on account of loss of high frequency bands with distance.
OK, I'll ignore the upstream for now and see what O2 can tell me about my downstream rates.
Thanks for the advice. Mark -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450 Registered in England (0456 0902) 21 Drakes Mews, Milton Keynes, MK8 0ER _______________________________________________ Peterboro mailing list Peterboro@mailman.lug.org.uk https://mailman.lug.org.uk/mailman/listinfo/peterboro
