[RFI] RF getting into 4-port wirelss router.

[Kenneth G. Gordon]

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 at 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
> 
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> 



Kenneth G. Gordon W7EKB

"Courage is being scared to death but saddling up anyway."--- John   Wayne