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Date: Mon, 4 Mar 2013 11:34:53 -0800
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Subject: Re: Does ath in 802.11g builds map of client <-> antenna "distance"?
From: Adrian Chadd <adrian@freebsd.org>
To: Lev Serebryakov <lev@freebsd.org>
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On 4 March 2013 09:50, Lev Serebryakov <lev@freebsd.org> wrote:
> Hello, Freebsd-wireless.
>
>   Situation (theoretical one, I didn't try it, but I'm thinking about
>  WiFi coverage of my parent's cottage and lot): WiFi card with 2
>  antennas, in 802.11g (or single-channel 802.11n) mode. Both antennas
>  are attached, but they are directed )not uni-directional, but
>  something with 180 degree or less diagram), and they are "see"
>  different sectors (and different clients). Will it work? will
>  card/driver understand, that different packets should be sent via
>  different antennas?

Performance will suck. For lots of reasons. :-)

You're better off with two NICs, one per directional antenna.

The driver and NIC does try to "probe" which antenna to send frames
out and keep that in the keycache. But it's not going to be 100%
correct.


Adrian