Hi Brian,
I feel your pain.  I've had to silence a wifi emitter here also.  
And like you, it was interfering with our eero mesh network.
I pooped off the micro coax, like you did, and it seemed to be effective enough. 

A quarter wavelength at 5800 MHz is less than 1.5 cm.  
I've not probed it with the spectrum analyzer, but I'd bet that that 
little nub of the center conductor SMT connector offers a poor match the output impedance of that final..   

Worse case, drop some solder paste in the connector!

Good luck
Tom W4SDR

On Sat, May 30, 2020 at 9:15 AM Brian McCarthy <brian@rfacres.com> wrote:
Here's an odd question, has anyone here on the list ever seen a source for IPX/U.FL dummy loads?

Here's my challenge...

I am trying to completely mute the WiFi signals coming out of an Xfinity XB7 Gateway. Disabling the WiFi in the software does not mute all signals. Setting the gateway into bridge mode does not mute all the signals. This device is still pumping out 3 hidden SSID with 3 unique MAC addresses on 2.4GHx channel 1. It is messing with the balance of my home Ubiquiti WiFi mesh network.

I would be using a third party cable modem, but I can save $20/month by renting the Xfinity box. (The box rental is $20/month but comes with unlimited data. To subscribe to unlimited data is $40/month.)

Looking up the FCC ID and reviewing the internal photos of this gateway, I see 6 wireless antennas. They are all connected with the tiny surface mount connectors typical inside modern WiFi devices. They look like:

image.png
image.png

I will try just popping the connectors off surface mount sockets, but I an not sure that will give me enough attenuation of the transmitter. If I could clip some small (inexpensive) dummy loads onto those connectors, it should reduce leakage even more.

I would appreciate suggestions and sources.

Thanks!
Brian
NX9O
involuntary network administrator at RF Acres.


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