Ken,
The moral of my story was that with one ADSL modem I just needed filtering
on the phone line right before it connected to my ADSL modem, but with a
different model I had to add filtering to the 117 volt line cord that
powers the ADSL modem. (one shoe does not fit all, etc.)
Don
On Mon, Jan 12, 2015 at 11:31 AM, Kenneth G. Gordon <
kgordon2006@frontier.com> wrote:
> That is very interesting below, Don. There is no filtering on my DSL line.
> I'll
> look into that asap too.
>
> Thanks.
>
> Ken W7EKB
>
>
> On 12 Jan 2015 at 11:15, Don Kirk wrote:
>
> >
> > Hi Ken,
> >
> > May or may not be a related topic, but thought my following info might
> help you
> > long term.
> >
> > I had been using a filter I built on my phone line that feeds my DSL
> modem
> > (original filter design by OZ1CTK), and this stopped the continuous
> crashes of
> > my ADSL modem. Well after many years my ADSL modem finally failed and
> ATT sent
> > me a new ADSL modem (different model) which also has WIFI built in. The
> new
> > modem would crash as soon as I transmitted on 160 meters, so I added
> filtering
> > to the 117 volt line cored (identical to what I recently posted for my
> treadmill
> > filtering), and this immediately fixed my problems. I did this at the
> last
> > minute as I was one of the W1AW/9 stations so did not have time to
> figure out
> > exactly which filters were really required (they cured my problem during
> a very
> > critical time, and that is all that mattered).
> >
> > Bottom line is that I now have filtering on the phone line that comes
> into the
> > DSL modem, a toroid choke on the 117 volt line cored for common mode
> > suppression, and a commercially purchased line filter (made by Delta)
> that
> > provides both common mode and differential mode filtering, and my new
> ADSL modem
> > no longer crashes.
> >
> > Just FYI,
> > Don (wd8dsb)
> >
> > On Sun, Jan 11, 2015 at 10:57 PM, Kenneth G. Gordon <
> kgordon2006@frontier.com>
> > wrote:
> > OK, gang, I need some different help here.
> >
> > I have a 4 port wireless router (Trendnet TEW-812DRU at the moment)
> > connected to our main computer and two others in the home, not
> including the
> > laptops that connect to it periodically.
> >
> > I have replaced the router at least 4 times over the past year or
> two due to
> > the fact that RF from my ham station is getting into it through one
> or more
> > of the three CAT-5 cables I have connected to it.
> >
> > I have installed several of those snap-on filters on all three of
> the CAT-5
> > cables which connect to it, and also on both ends of the DC power
> cable,
> > making seveal "loops" through each filter.
> >
> > I still wipe out the router every time I get on the air. I have
> destroyed
> > one $169.00 router, and two less expensive ones, a TPNET and a Cisco.
> >
> > The only solution I have come up with is to disconnect the CAT-5
> cables (all
> > three of them) from the router each time I get on the air.
> >
> > Has anyone here had a similar problem, and if so, what did you do to
> fix it?
> >
> > BTW, one of my CAT-5 cables runs to the ham shack, where it connects
> to a
> > dumb 4 port switch...
> >
> > This has become a giant PITA.
> >
> > Any ideas?
> >
> > Kenneth G. Gordon W7EKB
> >
> > "Courage is being scared to death but saddling up anyway."--- John
> > Wayne
> >
> > _______________________________________________
> > RFI mailing list
> > RFI@contesting.com
> > http://lists.contesting.com/mailman/listinfo/rfi
> >
>
>
>
> Kenneth G. Gordon W7EKB
>
> "Courage is being scared to death but saddling up anyway."--- John Wayne
>
>
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