> In my experience, 3.5km is a high distance as far as ADSL in New Zealand
is
> concerned. I take it the tech was using an external router. It is very
> common for Internal modems not to work at all at this distance, and some
> poorer External routers still have problems.

How does one typically determine the "distance" anyway from the exchange to
a house? Do people normally go as the eagle flies, or by traversal of roads?
I would think the most accurate way to judge the distance is the line
distance - ie the copper pair that goes from your house, to a repeater box
down the street (in the opposite direction to the exchange), and back from
that repeater box (probably digital, too) back to the exchange.

If your experience dictates that 3.5km is a high distance for ADSL to work
effectively, does that mean from the house to the repeater box, or house to
the exchange, or both? Surely 90% of the population wouldn't be able to get
ADSL if both?

> BTW, I am told that he main problems with Internal modems is that fact
that
> they draw their power source from the already overloads PSU in your
> computer, rather than having a seperate power source. This causes problems
> both when far away from an exchange, plus when you are too close to an
> exchange.

PSU? overloaded? Psaw! I don't think it's a lack of power at all that causes
internal modems to be less reliable, it's more that they are sitting in a
large metal box, sharing power with several other devices, and absorbing
electrical interference from them, as opposed to being in their own case
with their own power source..

Steve

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