>>> However I am mystified as different sites give me widely varying
>>> estimates of how fast my connection will be - from 1mb as present
>>> up to at least 4mb.
>>> Which would be the best site to check with?
>>
>> Which sites have you tried? The BT checker (sorry, I don't have the
>> link to hand this minute) will (even for short distances to the
>> exchange) give figures of "up to 6.5 Mbps". Whether that is based
>> on an 'average' level of attenuation for the postcode, or a check of
>> some database to give them a 'distance' to the exchange, I don't
>> know, but having got some figure it is then a bit of a lottery as to
>> how fast you'll see your connection with the various traffic
>> throttling systems some ISPs let loose to limit their heavier users,
>> and even if the link to the exchange is at that full speed (8128/488
>> kbps for down/upstream) then there will be other places where a bit
>> of congestion could slow traffic down to a crawl, so your data is
>> now getting to you at the speed of the *slowest* link between you
>> and source! Assuming you are using Zen, you might also watch out that
>> your
>> traffic is going to be capped to a certain level (for downloads at
>> least) on the "up to 8Mbps". Others would love your slower, stable,
>> unlimited, connection!
>
> www.dslzoneuk.net
>
> www.samknows.com
>
> www.bt.com
>
> I am on Zen and they say 1mb (which I am on) but others saying
> 3/4mb???.
Are Zen offering you a product based on the BT MAXDSL system? If so the 3 to
4MB would sould likely based on the figures you gave. With luck you should
get more.
Peter Crosland