[vox-tech] OT: finding location of a break in in-wall telephone wiring?

[Henry House]

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On Wed, Aug 14, 2002 at 09:06:01PM -0700, Ted Deppner wrote:
> On Wed, Aug 14, 2002 at 01:31:40PM -0700, Henry House wrote:
> > Can anyone point me to resources explaining how to locate a break in my
> > in-wall telephone wiring (rat damage), assuming such a thing is possibl=
e? I
> > have a multimeter; hoping that I can do the trick when handled by a clu=
eful
> > operator ;-).
>=20
> Use a home made time domain reflectometer injector (I've made one), and a
> good oscilliscope.  You can detect cable length and any impedance problems
> too.
>=20
> That said, it's probably easier to pull new line useing the old, as
> someone's already suggested.
>=20
> If you look online for a DIY TDR you should see some links.  It's a fun
> low cost project... assuming you already have an oscilliscope.

Looks like a cool project, though since I have a multimeter but no
oscilliscope, I think I'll try the the multimeter first, then perhaps go wi=
th
Rusty's suggestion of pulling new wire; 25-year old cable is probably due f=
or
replacement anyway.  Thanks to all for the many suggestions!

--=20
Henry House
The attached file is a digital signature. See <http://romana.hajhouse.org/p=
gp>
for information.  My OpenPGP key: <http://romana.hajhouse.org/hajhouse.asc>.

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