[MLB-WIRELESS] Omni antenna design question

[Nath P]

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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