[TowerTalk] Fw: Which antenna should be on top?

[Michael Brown]

I don't have any experience with 40m yagis, so I can't
answer that one. The only practial experience is that
our radio club uses a large tribander, and a 4 el 6
meter beam probably 8-10ft  spacing, on the same
tower. Both antennas work fine.

Mike - K9MI


----- Original Message -----
From: "Carlos Augusto S. Pereira" <py1cas@ig.com.br>
To: "Michael Brown" <k9mi@home.com>; <towertalk@contesting.com>
Sent: Friday, August 03, 2001 12:41 AM
Subject: Re: [TowerTalk] Fw: Which antenna should be on top?


> Mike,
>
> I am talking about a Cushcraft A4S and a 5 ele. Yagi for 6m (boom = 12
ft).
> So, it means that if you have enough height for both antennas, the one on
> top should be the lighter. I thought (wrongly) that the 6 meters antenna
> would see the HF tribander as a kind of ground.
>
> I have seen many setups with a 40-2CD on top (with the HF tribander
below).
> So the lower frequency Yagi is on top. Perhaps it was chosen this way
> because the 40 meters yagi needs at least 66ft  to achieve a low radiation
> angle. Is that right?
>
> 73
>
> Carlos Augusto S. Pereira
> Callsign: PY4RO
> Belo Horizonte - MG Brazil
> pt2ho@contesting.com
> ----- Original Message -----
> From: "Michael Brown" <k9mi@home.com>
> To: "Carlos Augusto S. Pereira" <pt2ho@contesting.com>;
> <towertalk@contesting.com>
> Sent: Friday, August 03, 2001 2:27 AM
> Subject: Re: [TowerTalk] Fw: Which antenna should be on top?
>
>
> >
> > Carlos, I would say to put the tribander low. Not certain
> > exactly what antennas you have, but I would imagine
> > the tribander is the heavier/larger of the 2 antennas.
> >
> > Mike - K9MI
> >
> >
> > ----- Original Message -----
> > From: "Carlos Augusto S. Pereira" <py1cas@ig.com.br>
> > To: <towertalk@contesting.com>
> > Sent: Friday, August 03, 2001 12:09 AM
> > Subject: [TowerTalk] Fw: Which antenna should be on top?
> >
> >
> > >
> > > Friends. I forgot to tell you. I am talking about a 32 ft tower
mounted
> on
> > > the top of the building.
> > >
> > > 73
> > >
> > > Carlos Augusto S. Pereira
> > > Callsign: PY4RO
> > > Belo Horizonte - MG Brazil
> > > pt2ho@contesting.com
> > > ----- Original Message -----
> > > From: "Carlos Augusto S. Pereira" <py1cas@ig.com.br>
> > > To: <towertalk@contesting.com>
> > > Sent: Friday, August 03, 2001 1:43 AM
> > > Subject: Which antenna should be on top?
> > >
> > >
> > > > Dear friends,
> > > >
> > > > Imagine a tribander Yagi for 10-15-20 and a 5 element Yagi for 6
> meters
> > on
> > > > the same tower. Which antenna should be on top and what is the
reason
> > for
> > > > that?
> > > >
> > > > Thanks and 73,
> > > >
> > > > Carlos Augusto S. Pereira
> > > > Callsign: PY4RO
> > > > Belo Horizonte - MG Brazil
> > > > pt2ho@contesting.com
> > > >
> > >
> > >
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> > > -----
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> >
> >
> > List Sponsored by AN Wireless:  AN Wireless handles Rohn tower systems,
> > Trylon Titan towers, coax, hardline and more. Also check out our self
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> >
> > -----
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> >
>


List Sponsored by AN Wireless:  AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!!  http://www.anwireless.com

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