[ale] Better ISP?

[James Sumners]

I have heard that AT&T will install a filter at the DMARC for free if
you subscribe to their DSL service. If your ISP doesn't, you can
always take matters into your own hands[1]. But, if it's effective,
it's cheaper to re-purpose a regular filter.

[1] -- http://www.hometech.com/hts/products/wiring/enclosures/demarc/cc-ulmdsl.html

On Thu, Jan 6, 2011 at 1:32 PM, Michael H. Warfield <mhw at wittsend.com> wrote:
> On Thu, 2011-01-06 at 10:56 -0500, Jim Kinney wrote:
>> On Thu, Jan 6, 2011 at 10:31 AM, James Sumners <james.sumners at gmail.com>wrote:
>
>> > Or you can do what AtNex suggested to me -- cannibalize one of the
>> > regular phone filters and wire it into the DMARC.
>> >
>
>> Easier: put a splitter at the demark and filter one leg. Use that side or
>> the house phone setup and the unfiltered for the dsl modem.
>
> I have one of those "structured wiring panels" and had a whole house DSL
> filter board installed in there for a while.  The line from the DMARC
> ran to the panel and I tapped off the DSL modem on a dedicated line off
> that board and the rest of the house off the analog side of that fiter.
> A few years back I was having some S/N ratio problems on that particular
> DSL (I had two at the time) and the phone company decided they wanted to
> beef up the filtering a bit more so they installed one of their DSL
> filters in the DMARC and then brought the DSL in on a dedicated pair (I
> had several spares in the two cables running from the DMARC to the
> panel).  That improved the S/N ratio as did some of the work they did on
> my line and the problems went away and never returned.  If you're having
> problems like that, they can and will install a nice filter in your
> DMARC and bring the DSL and POTS in on separate filtered lines for you.
> Their filter fits the DMARC footprint and looks like one of their surge
> blocks, only fatter.  I then used my whole house filter board on the
> other line after that where I had been using a couple of those modules
> for the few devices plugged into there.  Filtering at the DMARC is
> definitely better than an off the shelf whole house filter inside the
> house and that's better than the little plug modules.
>
> Regards,
> Mike


-- 
James Sumners
http://james.roomfullofmirrors.com/

"All governments suffer a recurring problem: Power attracts
pathological personalities. It is not that power corrupts but that it
is magnetic to the corruptible. Such people have a tendency to become
drunk on violence, a condition to which they are quickly addicted."

Missionaria Protectiva, Text QIV (decto)
CH:D 59