[MLB-WIRELESS] Polarisation (was Network Structure - Was Re: Anyone know these people?)

Tom Parker tparker at netspace.net.au
Fri Apr 25 13:08:00 EST 2003


Folks,

I've meant to ask this question for a while, am I right that a directional should use vertical polarisation when talking to a dipole
omni?  or does it depend upon the omni?  (Simon perhaps we should try this to improve our link quality?)

Thanks,
Tom

----------------------------------
Tom Parker tparker at netspace.net.au
http://www.wiresncode.com/projects



> -----Original Message-----
> From: owner-melbwireless at wireless.org.au
> [mailto:owner-melbwireless at wireless.org.au]On Behalf Of
> bchild at wireless.org.au
> Sent: Friday, 25 April 2003 12:43 PM
> To: melbwireless at wireless.org.au
> Subject: Re: [MLB-WIRELESS] Network Structure - Was Re: Anyone know
> these people?
>
>
> Well u could run 6 links, technically speaking more, if u run them at
> different polarizations, in theory the noise floor increases true, but in
> the same respect, if they are 180 degrees out of phase then there is not
> much interference against ur other antenna, u can mount u antenna @ any
> angle u link in a directional form, so long as the other antenna is at the
> rite polarization.
>
> Regards Glen
> (Nodes AAC,FTA)
>
> > At this stage the majority of people I'm working with are going to be
> > type 2) Backbone nodes.  We have several systems setup with multiple
> > wireless cards which will use directional antennas.  Some of these nodes
> > may run AP's also preferably with 180degree antennas to cover specific
> > areas that only they can cover.  These will be aligned so as not to
> > overlap and can only be run at nodes with 2 directional links.  As you
> > can see each location can really only have a maximum of 3 wireless
> > devices in total, so 2 backbones and an AP, or 3 backbones, or 1
> > backbone and 2 AP's (weird?).
>
>
>
>
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