You can stack similar antennas, either a yagi with a delta loop. BUT......
...the better performance will be with equal antennas in the same tower,
with the separation provided by the manufacturer, as M2inc do in his
antennas specifications.
And with a ArraySolutions stackmatch you can use equal lenghts of 50 ohms
coaxial from each antenna to the box in the tower, then any lenght from the
box to the shack.
73,
Jorge
CX6VM/CW5W
-----Mensaje original-----
De: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] En nombre de Jimmy O. Floyd
Enviado el: Jueves, 26 de Marzo de 2009 04:36 p.m.
Para: TOWERTALK@contesting.com
Asunto: Re: [TowerTalk] Stacking Antennas
I must not be seeing all of the e-mail responses to my query....... Sorry
folks and if you ask a question and I do not respond please send direct.
Nat, in answer to your question..... We may end up buying antennas but the
two mentioned are antennas that we have on hand. Just trying to save some
dollars on an already way over budget project. :)
Thanks
Jimmy O. Floyd
NQ4U
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Nathaniel Lee
Sent: Thursday, March 26, 2009 2:25 PM
To: TOWERTALK@contesting.com
Subject: Re: [TowerTalk] Stacking Antennas
Maybe it is just me but given the cost of the Rohn 45 and Phillystran, why
not have the same model beams on the tower?
There was an article in the recent NCJ that talked about stacking odd or
different yagis and to me, it was a lot of work to clean up the patterns.
Make it easy on yourself and the performance would come with it...
Nat Lee
Somersworth, NH
> You said "stack match". If you are talking about the Array Solutions
> Stack Match, you may want to check with Jay about using 75 ohm feed
> line. His system uses equal length of 50 ohm feed line from the
> relay box on the tower to each antenna. How sweet it is to be able
> to use the high antenna alone, the low antenna alone or both antennas
> together.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> You bet it is. Being able to switch from top to bottom or full stack
> is really handy. Jay (WX0B) gives great service too. He also has a
> box that allows you to put the antennas out of phase...very handy for
> close in stuff.
>
> Bill KH7XS/K4XS
> **************Great Deals on Dell 15" Laptops - Starting at
> $479
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> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
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