[Commotion-dev] Note about mixing phone/pc clients and nanostations

[Darby Hickey]

This is a problem discussed in the currently under-development Commotion
Construction Kit modules "Troublshooting Commotion" and "Wireless
Challenges." Though we maybe could make it more specific to this specific
scenario.

Preview attached :)


On Fri, Oct 11, 2013 at 3:51 AM, Teco Boot <teco at inf-net.nl> wrote:

> The RF path is symmetric. It is the Tx power, Rx sensitivity and noise
> floors that make links asymmetric.
>
> If the nanostation becomes an unwanted dominant node because its high RF
> performance, you could reduce Tx power.
>
> Teco
>
>
> Op 10 okt. 2013, om 21:24 heeft Jordan McCarthy <
> mccarthy at opentechinstitute.org> het volgende geschreven:
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA512
> >
> > In the course of testing out various PC clients, I've been
> > experiencing consistent flakiness whenever a particular node has been
> > active on our test network.  Today I realized that this problematic
> > node is a nanostation, and that the signal that it puts out is strong
> > enough that all of the PC clients immediately begin favoring this node
> > as their primary point of contact - even though the PCs' antennas are
> > far, far too weak to actually transmit data back to the nanostation.
> > Sure enough, as soon as I turned off the nanostation the PC client
> > began behaving itself once again.
> >
> > So as more Commotion clients come on line, please remember: not all
> > antennas are created equal!
> >
> > Jordan
> > - --
> > Jordan McCarthy
> > Open Technology Institute | New America Foundation
> > Public Key: 0xC08D8042 | 4A61 3D39 4125 127D 65EA DDC2 BFBD A2E9 C08D
> 8042
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> > -----END PGP SIGNATURE-----
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-- 
Darby Hickey
Program Associate, Open Technology Institute
New America Foundation
202-596-3415
oti.newamerica.net
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