[Fourlanders] IPX/U.FL Dummy Loads?

[Brian McCarthy]

Hi Ted,

I would never get all that stuff to fit back into the case. I was typing
the other response when you sent this.

Your suggestions do lead me up a probable compromise, if simply unplugging
the antennas is not enough attenuation. I could leave those internal
antennas disconnected and put the gateway into it own Faraday cage. I would
need to be pretty careful with the coax, ethernet and power connections to
not allow any stray radiation. I would also need to ventilate it well
enough to not kill it with heat. Those seem like easier problems to solve
than fitting stubs and dummy loads into a tight case.

Thanks!
Brian
NX9O


On Sat, May 30, 2020 at 5:35 PM Ted Wood <ted at k4k.pw> wrote:

> What about an IPX to SMA adapter cable like this:
>
> https://www.amazon.com/GP-Electric-Pigtail-Antenna-Coaxial/dp/B06Y6CB2SX
>
> in to an SMA dummy load like this:
>
>
> https://www.amazon.com/DHT-Electronics-coaxial-connector-Termination/dp/B00BXUYDMM
>
> 73,
> Ted
>
>
> On Sat, 30 May 2020 09:15:01 -0400
> Brian McCarthy <brian at 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: image.png]
> > [image: 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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