[TriLUG] Wifi Bridge

[David Burton via TriLUG]

Really??  I'm learning all kinds of things today!

Is it the white wire, or the black wire?

Dave


On Thu, Oct 29, 2015 at 12:14 PM, Aaron Morrison via TriLUG <
trilug at trilug.org> wrote:

> Also keep in mind that on most (all?) units, only one antenna is the
> transmitter.  That will also affect performance.
>
> --am
>
>
> > On Oct 29, 2015, at 11:04, C TC via TriLUG <trilug at trilug.org> wrote:
> >
> > Got it. The link explaining diversity antennas is very helpful.
> >
> >
> > thnx
> >
> >> On Thu, Oct 29, 2015 at 10:59 AM, Bill Farrow <bill at arrowsreach.com>
> wrote:
> >>
> >> On Thu, Oct 29, 2015 at 9:57 AM, C TC via TriLUG <trilug at trilug.org>
> >> wrote:
> >>> I'm curious about the info below.
> >>> With a single transceiver, would using the same length antenna
> >>> cables (on both sides) solve the issue; or are you saying the antennas
> >>> need to "see" each other? > Not have a metal wall between them.
> >>
> >> Wifi Router/AP/Extenders are designed with two antennas to help with
> >> multipath signal problems. The antenna are optimally spaced to ensure
> >> that at least one of them will receive a strong signal.
> >>  http://www.antennaplus.com/TechCenter/understanding-diversity.aspx
> >>
> >> If you place one antenna outside, and one inside, both antennas will
> >> suffer from deadspots as the environment around them changes. The
> >> other issue is that the wifi transceiver could decide to switch off
> >> the antenna that is getting low signal strength.
> >>
> >> Think about it this way. The wifi extender receives a packet from the
> >> antenna outside. If it doesn't hear an ACK for that packet within a
> >> short period of time, it re-broadcasts it - which antenna will it use
> >> ? Most likely it will have decided that the one that it received it on
> >> has the best signal to noise ration (SNR) and it will use that
> >> antenna. The laptop inside the shed will not hear the packet, and the
> >> external wifi will be degraded by duplicate packets taking up
> >> bandwidth.
> >>
> >> Bill
> > --
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> --
> This message was sent to: Dave Burton <ncdave4life at gmail.com>
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>