Re: Shielded mains cable
- From: John Byrns <byrnsj@xxxxxxxxxxxxx>
- Date: Sun, 03 Jun 2007 22:42:18 GMT
In article <1180897940.425823.190090@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Peter Wieck <pfjw@xxxxxxx> wrote:
John:
Your equipment, exactly as the light in the Princess Phone is locally
powered.
True, I don't believe I stated otherwise.
And that is exactly as far as it goes.
Not quite.
The ADSL Modem induces
a signal onto the "Bell System" powered line, but does not add any
power to that line from any local source.
Wrong, the signal power transmitted by my DSL modem into the "Bell
System" phone line comes from my "local" power source, not from a "Bell
System" power source, and it adds power to the line.
I think you need to study up on how DSL works, it sounds like you are
being confused by the way "Bell System" POTS Telephones work.
When I was a young boy my Grandmother had a "General Telephone"
Telephone at her summer home which operated differently than a "Bell
System" Telephone, all the power for speech and signaling delivered by
the phone to the line came from "local" sources, so all phones don't
even operate in the same way with respect to power sources.
That is the point... and
with some thought, that is why it is rather obvious why a digital
signal would not have near as much range as an analog signal due to
cliff effects if nothing else.
Huh, could you elaborate on that, it sounds like complete nonsense at
first blush, am I missing something? What are "cliff effects", it
sounds like something to do with college exams?
Regards,
John Byrns
--
Surf my web pages at, http://fmamradios.com/
.
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