[MLB-WIRELESS] Omni antenna design question

[rick]

the signal starts to tilt down more with the more elements

bang for buck not really worth it
----- Original Message ----- 
From: "Nath P" <nathp at optushome.com.au>
To: "Winder" <winder at iinet.net.au>; <melbwireless at wireless.org.au>
Sent: Thursday, July 24, 2003 6:39 PM
Subject: Re: [MLB-WIRELESS] Omni antenna design question


> I don't know the pros and cons of decouplers, but i didnt use one i
followed
> the design on
> http://wireless.gumph.org/articles/homemadeomni.html
> with the mods txrx made on
> http://home.iprimus.com.au/txrx/projects/gumph-smarm-omni.html
> but i made it with 16 segments (i think it was)
> and it works very well..
>
> ----- Original Message -----
> From: "Winder" <winder at iinet.net.au>
> To: <melbwireless at wireless.org.au>
> Sent: Wednesday, July 23, 2003 10:40 PM
> Subject: [MLB-WIRELESS] Omni antenna design question
>
>
> > Howdy,
> >
> >  Got another question for the RF gurus on the list about the home made
> > antenna at: http://guerrilla.net/reference/antennas/2ghz_collinear_omni/
> >
> >  My question is related to the N Connector and length of its coax. In
the
> > "Decoupling and RF Connector Assembly:" section they say that they "we
> > solder the braid of the coax to the end of the brass tubing 1/4
wavelength
> > up from the end of the N connector"
> >
> >  My question is how important is having the N connector 1/4 wave length
> from
> > the brass tube bit? I didn't think it would be much of a big deal to
have
> > the connector a foot or two away on a longer bit of coax?
> >
> >  Also, I take it just adding elements (I'm guessing in lots of two)
would
> > increase the gain?
> >
> > Regards,
> > g at z.
> >
> >
> >
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> >
>
>
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