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Re: Helix for ao40 uplink or not?



Mount the yagi so its elements are orthogonal to any metal mast or crossboom
and the feedline. This minimizes losses and detuning caused by circulating
currents in metal parts located in the plane of the antenna elements.

73,

John
KD6OZH

----- Original Message -----
From: "Brian" <groupes@smart-tech.dk>
To: <amsat-bb@AMSAT.Org>
Sent: Saturday, July 19, 2003 19:48
Subject: Re: [amsat-bb] Helix for ao40 uplink or not?


> One other question please.
>
> If you for starters only have a single yagi beam, should you put it
> H or V for best uplink?
>
> I gess its 50/50 just want to be sure.
>
> Thanks.
>
> Regards
> Brian
> OZ1SKY
>
>
>
> ----- Original Message -----
> From: "Brian" <groupes@smart-tech.dk>
> To: <amsat-bb@AMSAT.Org>
> Sent: Saturday, July 19, 2003 8:19 PM
> Subject: [amsat-bb] Helix or ao uplink or not?
>
>
> > Hello.
> >
> > Im very new to AO40 and would like to know if a helix 435mhz is good for
> > uplink
> > to AO40 or is it better with a X-yagi if we say the gain is the same on
> both
> > antennas?
> >
> > Regards
> > Brian
> > OZ1SKY
> >
> >
> > ----
> > Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
> > Not an AMSAT member? Join now to support the amateur satellite program!
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> >
>
> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT member? Join now to support the amateur satellite program!
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>


----
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