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Old 11-20-2007, 03:46 AM
Always Thinking
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Default Help Me With My Antenna Parabola, Please!

[Resend: Apparently server has connectivity problems]

OK, I'm in need of a bit more boost from my vertical
omni antenna, which is just not cutting it most of
the time; I need more directional grunt.

I saw this site:

http://www.freeantennas.com/projects/template/

and thought I'd try it, but there are two different
types of reflectors and I am not sure which is the
correct one for the cheapie antenna I'm using:

http://www.airlink101.com/products/asb-7ma.html

The element is about 7-3/8 inches long, with two
corkscrew sections.

If you scroll down on the site, you'll see that
there's a second page for an improvised reflector
for "WET-11 5/8 Wave" antenna types. Which is the
more appropriate for my antenna?

Do these reflectors "scale," that is, do bigger
ones of the same proportions work the same?

Thanks for any help!




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  #2 (permalink)  
Old 11-20-2007, 04:24 AM
miso@sushi.com
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Default Re: Help Me With My Antenna Parabola, Please!

On Nov 19, 7:46 pm, "Always Thinking" <think...@alt.dev.null> wrote:
> [Resend: Apparently server has connectivity problems]
>
> OK, I'm in need of a bit more boost from my vertical
> omni antenna, which is just not cutting it most of
> the time; I need more directional grunt.
>
> I saw this site:
>
> http://www.freeantennas.com/projects/template/
>
> and thought I'd try it, but there are two different
> types of reflectors and I am not sure which is the
> correct one for the cheapie antenna I'm using:
>
> http://www.airlink101.com/products/asb-7ma.html
>
> The element is about 7-3/8 inches long, with two
> corkscrew sections.
>
> If you scroll down on the site, you'll see that
> there's a second page for an improvised reflector
> for "WET-11 5/8 Wave" antenna types. Which is the
> more appropriate for my antenna?
>
> Do these reflectors "scale," that is, do bigger
> ones of the same proportions work the same?
>
> Thanks for any help!


What information does your site survey yield?

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  #3 (permalink)  
Old 11-20-2007, 03:26 PM
curly Bill
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Default Re: Help Me With My Antenna Parabola, Please!


>
> I saw this site:
>
> http://www.freeantennas.com/projects/template/
>


> Do these reflectors "scale," that is, do bigger
> ones of the same proportions work the same?
>


EZ-12
Yes,
Better!

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  #4 (permalink)  
Old 11-22-2007, 09:35 PM
Always Thinking@remailer.metacolo.com
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Default Re: Help Me With My Antenna Parabola, Please!

Specifically, is the height of these vertical reflectors
critical, assuming they are as high as the antenna element?

Remember, this is for an element about 7-3/8" high, not the
small screw-on masts that come with cheap routers, for which
these designs are originally intended.


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  #5 (permalink)  
Old 11-23-2007, 05:20 AM
curly Bill
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Default Re: Help Me With My Antenna Parabola, Please!

assuming they are as high as the antenna element?
>


When doing the printout, just make the square remains square.
http://www.freeantennas.com/projects...te2/index.html

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