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Re: [TowerTalk] H frame for 10 or 15m

To: "DF3KV" <df3kv@t-online.de>, <towertalk@contesting.com>
Subject: Re: [TowerTalk] H frame for 10 or 15m
From: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Mon, 15 Aug 2011 21:22:16 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
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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