On 08/02/2014 17:24, David Paste wrote:
As I understand it, ADSL signals are passed along the twisted pair (is
that right?) telephone cables which are the same used for voice calls.
At a much higher frequency, of course. I am also under the impression
that the length of this cable is critical for service quality and
overall data rate (apart from junction / joint quality).

Would using coax for the last stretch to the subscriber's premises
provide any better quality of service?

I only ask as my cable service uses coax and I wondered about the
difference.



On a d-i-y point - put Coax just on last part and most likely you will
have impedance mismatch, and degraded signal.
If coax were used to exchange or to fibre cabinet then yes that would
be better than twisted pair.




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