[MLB-WIRELESS] [TIB] A new offer has been added to TIB - 11/1 2/2002

[paul van den bergen]

Hi all,

Nice summary of the ins and outs of optimal antenna design, evilbunny.

(On the other hand, me thinks you tread a little heavily on peoples toes...)

I have mentioned befor that I have a pair of old WaveLAN cards (650mW - 2Mb/s) 
that even with 15 m of loss will still exceed 4mW with about an 8 - 10 dBi 
omni.  The cards have a nominal range of 35 km, which has got to break some 
rules, surely....
WHat I would really like to do is sent the Rx to the Omni and have the Tx come 
in on a 24dBi conifer... and the same setup at the other end.  this way I 
will have a true duplex (4Mb/s) low noise, high sensitivity long distance 
short-cut link (likely at this stage to a friends place in the Dandenongs... 
we shall see. I am sure I will get some offers...)

Does anyone have any idea how to do this?  The only way I can see easily is to 
use 4 cards and I only have 2 (fine for my end, but these are not your common 
wireless card and run the older proprietry standard 802.11)

I will also have to dig into the electronics, etc and see if I can reduce the 
power output...

On Thu, 12 Dec 2002 06:32 pm, evilbunny wrote:
> Hello Barry,
>
> BP> Doesn't answer the question tho: is amping an omni bordering on
> BP> counterproductive given what community wireless meshing is about?
> BP> - Barry
>
> Completely, since most most people in community groups long term would
> have no need for long links to achieve this goal once critical mass is
> hit and there are antenna every 1 to 2km, why is there a need for the
> extra brute force?

-- 
Dr Paul van den Bergen
Centre for Advanced Internet Architectures
caia.swin.edu.au
pvandenbergen at swin.edu.au
would somebody get this big walking carpet out of my way?

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