[Noisebridge-discuss] Need info on upgrading a WiFi antenna for a robot - how does it connect?

[Gian Pablo Villamil]

Cool, so I need to strip the pigtail and separate the inner and outer
connectors, I guess.

On Fri, Dec 3, 2010 at 8:09 PM, Joel Jaeggli <joelja at bogus.com> wrote:

> Coax has one wire in the center. The shield of the coax is on the outside
> seperated by an insulator and is the second wire.
>
> Your question is the correct answer.
>
> Twinax has two wires plus a shield.
>
> The little snap connector is a hirose u.fl, the outside is The shield, and
> the captive pin is the radiator.
>
> Joel's widget number 2
>
> On Dec 3, 2010, at 19:55, Gian Pablo Villamil <gian.pablo at gmail.com>
> wrote:
>
> > I'm in the midst of making some significant changes to a robot, which
> currently has a built-in WiFi antenna. I'm planning on replacing it with an
> antenna from a decommisioned router. I'm planning on taking the RP-SMA jack
> and antenna from the router and mounting it on the robot.
> >
> > The antenna connector is coax, which implies that there are two wires in
> it, right? However, the wire going from the WiFi chipset in the robot to the
> built-in antenna only has one conductor, as far as I can tell. It connect to
> motherboard using one of those little snap connectors, the ones that look
> like half a 12V battery connector but a lot smaller.
> >
> > My question is embarrassingly simple. How do I connect it to the new
> antenna? Does the outer part of the coax go to ground, and the inner part of
> the coax connect to the antenna cable from the robot?
> > _______________________________________________
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> > Noisebridge-discuss at lists.noisebridge.net
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>
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