[RFI] Xfinity Router RFI (Xfinity router name XB3)

[Jim Brown]

On 2/12/2020 6:18 PM, Don Kirk wrote:
> If the replacement router does not fix the problem then
> Mike will test a toroid core choke as well as a corcom type filter on the
> wireless router power cord.

It's ALWAYS a good idea to put a suitable ferrite choke on any wiring 
connected to a noise source -- it's usually those wires that radiate the 
noise. And that includes the AC line cord or DC power cable. For 15M, 
I'd start with three turns on a medium-size #31 clamp-on, and I'd do the 
same with any Ethernet cables.

If you haven't already done so, I'd try to shift the network to WiFi, so 
that the only cables are the power supplies, the cable between the modem 
and the router, and the DSL or internet cable feeding the modem.

Lots of detailed advice on my website in the piece about increasing 
contest scores by killing noise. k9yc.com/publish.htm

73, Jim K9YC