[MLB-WIRELESS] More antenna ideas (Was: Mobile phone antennas)

[Will Lanigan]

long as you dont cook the lard :P
----- Original Message ----- 
From: "Will Lotto" <lotto at impulse.net.au>
To: <melbwireless at wireless.org.au>
Sent: Monday, June 24, 2002 1:14 PM
Subject: RE: [MLB-WIRELESS] More antenna ideas (Was: Mobile phone antennas)


> No, you are entirely correct.
> 
> The only reason galexy et al. dishes are a mesh rather than a dish is
> because of wind loading.
> 
> The amount of braces needed to hold a 2M satallite dish steady in a
> strong wind is huge compared to that needed to hold a wire dish.
> 
> Technically a plastic/flywire dish would be perfect for 802.11b, all you
> need to do is put a standard galexy collector (designes will be
> somewhere on the net) at the focal point of the parabolic dish and
> you're set. ... Now all you've gotta do is hold the thing steady.
> 
> I would recommend lard, but I don't know how well it reflects/absorbs/is
> transparent to 2.4ghz radio signals. I'm not sure if many studies have
> been conducted in this area either. MelbWireless could lead the world on
> 2.4ghz lard studies. .. You never know :)
> 
> 
> Will.
> 
> > -----Original Message-----
> > From: owner-melbwireless at wireless.org.au 
> > [mailto:owner-melbwireless at wireless.org.au] On Behalf Of 
> > fenn_b at smktech.com.au
> > Sent: Monday, 24 June 2002 11:47 AM
> > To: melbwireless at wireless.org.au
> > Subject: RE: [MLB-WIRELESS] More antenna ideas (Was: Mobile 
> > phone antennas)
> > 
> > 
> > > this might be fun to try some time...  mind you, my
> > > antenae theory is non-existant, so this might just be a 
> > pipe dream...
> > >
> > 
> > On the theme of antenna ideas, pipe dreams and a complete lack of
> > antenna theory: ;)
> > 
> > I have been having a think about this - I have access to suitable
> > machinery to manufacture a perfect parabolic dish template 
> > (in whatever:
> > metal, wood, plastic, lard). I was thinking - Would it be
> > possible/worthwhile with such a template to use something like
> > fiberglass matting + some sort of metal core (flywire?) laid 
> > over it to
> > form a very cheap, very light, high-gain parabolic dish 
> > suitable for our
> > purposes?
> > 
> > If it's useful, we could have an group antenna-day and churn 
> > out a whole
> > heap of them to replace the lack of easy-to-obtain galaxies.
> > 
> > Am I just waaaaaaaaaaaaay of base here or maybe onto something that
> > could be construed as slightly more than completely useless? ;)
> > 
> > Fenn.
> > 
> > 
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> > 
> 
> 
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