rod at giffinscientific.com
Mon Jan 27 22:58:04 EST 2003
On Mon, 2003-01-27 at 21:50, Brad Barnett wrote:
> On Mon, 27 Jan 2003 20:17:53 -0500
> Chris H <chris123 at magma.ca> wrote:
> > Today Bell showed up at the office and left the following notes.
> > "As this is a 3meg account and the test indicate 100 % packet
> > transmittance, there is little room for error. Hence we have installed a
> > filter on the line to ensure only 90% transmittance allowing for a 10%
> > error factor"
> > Ummm...any idea what the ".........." this means. It makes absolutely
> > no scense to me.
> > /ch
> I doubt they've installed a filter. They probably just decreased your
> line speed, allowing for better error tolerance.
Yup. In effect, Brad is right. They've lowered the maximum throughput
to 90% of bandwidth, which is what they mean by "filter". It helps to
prevent interference from signal reflections and other distortions and
noise that can confuse the modem.
It is a common fix for DSL issues especially in older buildings, and
other places where older copper wire is used.
It is also an acceptable practice.
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