Paul makes an excellent point, which I neglected to mention. Phone line
surge protectors will all attenuate the DSL signal, some more than others.
If you have a good DSL signal at your house you'll never notice the
attenuation because you have lots of "headroom" to start with. If your
signal's noise margin is fairly low to start with (say down around 10 to14
db because you're way out there on the end of a cable pair) it can make your
DSL modem drop sync. Be sure you can take it back if it doesn't fly, and try
another type. I don't know of a way right now to sort out which
brands/models will work with DSL without using the "buy and try" method
unless you own a SunSet xDSL tester, which you don't unless you do this
stuff on a daily basis. Worth noting is if you install a device like this
and it proves to be the cause of trouble on a service call (which does
happen), you can be billed big bucks for the service call, even if your DSL
equipment is othwise still under warranty.
73, Jerry
----- Original Message -----
From: "Paul McInnish - K4BET" <k4bet@bellsouth.net>
To: "J. Kincade" <w5kp@swbell.net>; <w2up@mindspring.com>;
<towertalk@contesting.com>
Sent: Saturday, September 22, 2001 10:47 AM
Subject: Re: [TowerTalk] Poly phaser protectors
> Jerry... one caveat that all need to be aware of... due to the fact that
the
> DSL data is "riding" around a much higher reference - above the 'POTS' -
one
> should make sure that the filter does NOT attenuate the DSL... many, many
of
> them do!
>
> All the best.... & 73,
>
> Paul McInnish - K4BET
> SD, Grayson 549, F&AM
> Eastern Star
> 32 degree Scottish Rite
> Yaarab Shrine
>
> ----- Original Message -----
> From: "J. Kincade" <w5kp@swbell.net>
> To: <w2up@mindspring.com>; <towertalk@contesting.com>
> Sent: Saturday, September 22, 2001 4:26 AM
> Subject: Re: [TowerTalk] Poly phaser protectors
>
>
> >
> > Actually, there's no such thing as a "DSL line". DSL is just a
multiplexed
> > signal riding on the copper of your existing phone line. So the best
> > protection you can come up with for your phone line modem is also the
best
> > protection for your DSL modem. Lightning will get them both if near
> enough.
> > A good quality phone line surge protector is about the best I know of.
The
> > gas protector in your network interface might help, but it might not.
Keep
> > in mind that replacement DSL modems are only $99 each, so a $200
> Polyphaser
> > surge protector might be false economy here. :-)
> >
> > 73, Jerry W5KP, DSL repair/install tech for a large telephone company
> whose
> > name need not be mentioned here.
> >
> >
> > ----- Original Message -----
> > From: "Barry" <w2up@mindspring.com>
> > To: <towertalk@contesting.com>
> > Sent: Saturday, September 22, 2001 6:01 AM
> > Subject: Re: [TowerTalk] Poly phaser protectors
> >
> >
> > >
> > > While on the subject of Polyphaser protectors, does anyone have
> > > info on a lighning protector for a DSL line?
> > > Tnx,
> > > Barry
> > >
> > >
> > > --
> > > Barry Kutner, W2UP Internet: w2up@mindspring.com
> > > Newtown, PA Frankford Radio Club
> > >
> > >
> > > List Sponsored by AN Wireless: AN Wireless handles Rohn tower
systems,
> > > Trylon Titan towers, coax, hardline and more. Also check out our self
> > > supporting towers up to 100 feet for under $1500!!
> > http://www.anwireless.com
> > >
> > > -----
> > > FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> > > Submissions: towertalk@contesting.com
> > > Administrative requests: towertalk-REQUEST@contesting.com
> > > Problems: owner-towertalk@contesting.com
> > >
> >
> >
> > List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
> > Trylon Titan towers, coax, hardline and more. Also check out our self
> > supporting towers up to 100 feet for under $1500!!
> http://www.anwireless.com
> >
> > -----
> > FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> > Submissions: towertalk@contesting.com
> > Administrative requests: towertalk-REQUEST@contesting.com
> > Problems: owner-towertalk@contesting.com
> >
>
>
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 100 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
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