[MLB-WIRELESS] Orientation of antennas

[Tony Smith]

Jason

Once again the joke is on me.

There is some thin interveneing shrubbery and we were getting less than
expected results both in terms of transfer speed and persistence.

I walked down the street with my laptop and its pathetic "diversity" antenna
and watched the signal strnegth drop off. It coccurede to me that the
"rubber ducky" antenna might have worked just as well given the altitude at
the top of my roof and given that he had followed your instructions
carefully I started to think we had missed something blindingly obvious to
everyone but us.


We are, as you correctly summised, currently interfereing with intergalactic
traffic whilst not radiating much power in the intended plane.

Bearing in mind that this constitutes mistakes 22 & 23 we will re-oriant
them tonight under cover of darkness.

Further silly question.

I've had contact today from someone living in the opposite direction, can I
use a "T" piece and simply connect another antenna at the masthead, or would
this have too great a penalty in radiated power, or  is it just a dorky idea
full stop?





----- Original Message -----
From: "Jason Hecker" <jason at air.net.au>
To: "Tony Smith" <tony at tonsyl.org>
Sent: Monday, July 15, 2002 3:09 PM
Subject: Re: [MLB-WIRELESS] Orientation of antennas


> Ohhhhh.
>
> Well, there are helicals you point upright, much like the little stub
> antenna in a mobile phone (this is known as a normal mode helical and is
> omni).  My helical design isn't like this, it's in the endfire
> (directional) mode.  So, yes point them at each other rather than up,
> unless you want to do satellite comms.
>
> Good luck!  What's the zone in between the two like?  No trees or other
> obstacles in the way.
>
> Cheers,
> jASON
>
> At 02:35 PM 15/07/2002 +1000, you wrote:
>
>
> >Here is a really, really dumb question.
> >
> >I've just installed two helical antennas made to Jason Hecker's design.
> >
> >I've installed them "upright" becuase this is the logical thing to do and
> >nothing in Jason's instructions says to do any different.
> >
> >Been looking at a few other sites today, one of them is openly (with full
> >atribution and gratitiude) a version of Jason's design. The photos of the
> >completed antenna shows it installed horizontal.
> >
> >Am I missing something?
> >
> >
> >Cheers
> >
> >Tony Smith
> >
> >Connected to the internet in Sunny Far North Queensland Australia
> >http://www.tonsyl.org
> >
> >
> >
> >
> >
> >
> >
> >To unsubscribe: send mail to majordomo at wireless.org.au
> >with "unsubscribe melbwireless" in the body of the message
>
>



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