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

[evilbunny]

Hello Will,

Had it listed under the wrong section, anyways fixed that up...

http://www.sydneywireless.com/links.php?op=visit&lid=19

-- 
Best regards,
 evilbunny                            mailto:evilbunny at sydneywireless.com

http://www.SydneyWireless.com - Exercise your communications
freedom to make it do what you never thought possible... 

Monday, June 24, 2002, 2:16:12 PM, you wrote:

WL> I couldn't find anything on sydneywireless, but google is your friendT
WL> http://www.clearsat.com/product.htm

WL> Were you referring to the "special umbrella dish covers" ... Pretty
WL> funny, but I don't know how we'd justify having an outdoor table and
WL> umbrella on the roof of a house :)

WL> Will.
>> -----Original Message-----
>> From: evilbunny [mailto:evilbunny at sydneywireless.com] 
>> Sent: Monday, 24 June 2002 1:31 PM
>> To: Will Lotto
>> Cc: melbwireless at wireless.org.au
>> Subject: Re[2]: [MLB-WIRELESS] More antenna ideas (Was: 
>> Mobile phone antennas)
>> 
>> 
>> Hello Will,
>> 
>> Have you seen the umbrella satellite dish?
>> 
>> link somewhere in the ones on sydneywireless.com form memory...
>> 
>> -- 
>> Best regards,
>>  evilbunny                            
>> mailto:evilbunny at sydneywireless.com
>> 
>> http://www.SydneyWireless.com - Exercise your communications 
>> freedom to make it do what you never thought possible... 
>> 
>> Monday, June 24, 2002, 1:14:03 PM, you wrote:
>> 
>> WL> No, you are entirely correct.
>> 
>> WL> The only reason galexy et al. dishes are a mesh rather 
>> than a dish 
>> WL> is because of wind loading.
>> 
>> WL> The amount of braces needed to hold a 2M satallite dish 
>> steady in a 
>> WL> strong wind is huge compared to that needed to hold a wire dish.
>> 
>> WL> Technically a plastic/flywire dish would be perfect for 
>> 802.11b, all 
>> WL> you need to do is put a standard galexy collector 
>> (designes will be 
>> WL> somewhere on the net) at the focal point of the parabolic 
>> dish and 
>> WL> you're set. ... Now all you've gotta do is hold the thing steady.
>> 
>> WL> I would recommend lard, but I don't know how well it 
>> WL> reflects/absorbs/is transparent to 2.4ghz radio signals. I'm not 
>> WL> sure if many studies have been conducted in this area either. 
>> WL> MelbWireless could lead the world on 2.4ghz lard studies. .. You 
>> WL> never know :)
>> 
>> 
>> WL> 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.
>> >> 
>> >> 
>> >> To unsubscribe: send mail to majordomo at wireless.org.au
>> >> with "unsubscribe melbwireless" in the body of the message
>> >> 
>> 
>> 
>> WL> To unsubscribe: send mail to majordomo at wireless.org.au
>> WL> with "unsubscribe melbwireless" in the body of the message
>> 


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