I would guess that with an "H" frame array you would get the increased gain
of four yagis with less required turning radius, broader vertical beamwidth,
narrower horizontal beamwidth and possibly a shorter tower but with the
added cost of the "H" frame when compared to straighrt stacking.
Gene / W2LU
----- Original Message -----
From: "DF3KV" <df3kv@t-online.de>
To: <towertalk@contesting.com>
Sent: Monday, August 15, 2011 6:29 PM
Subject: Re: [TowerTalk] H frame for 10 or 15m
Many contest and VHF stations do that.
Long boom yagis need a lot of turning radius and spacing.
I am going to built one for 10m if the band improves.
5/8 wave length stacking distance is imho the minimum.
My 105BAs will be 8m high and 10m wide stacked.
The resulting lobe and gain at the planned 10° take off angle is not
possible with a 4 high stack.
73
Peter, DJ7WW
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Rick Karlquist
Subject: Re: [TowerTalk] H frame for 10 or 15m
Stein Roar LA6FJA-K3RAG wrote:
> Hi
>
> does anyone have ideas sizes for a H frame for 4-5 el yagies for 10 m and
> 15m ?
> 73 LA6FJA Rag
Why would anyone want to do this, instead of the conventional
wisdom of vertical stacking and/or using longer Yagi's?
Rick N6RK
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