[Antennas] YAGI Height Recommendation Needed

Mon, 3 Jun 2002 11:14:55 -0400 (EDT)

 Dear Ed:

   From everything I have read and seen in actual installations, you have it right.  Sounds like a great set up.  Have fun!

Ron W7MRR

 --- On Sun 06/02,   wrote:
From:  [mailto: [email protected]]
To: [email protected]
Date: Sun 06/02
Subject: [Antennas] YAGI Height Recommendation Needed

> Scenario:
> 
> I will be putting up three antennas on a 70' tower:
> 
> Hygain TH-11 (12 SQ FT)
> M2 3 element Linear-Loaded 40m Yagi (9.5 SQ FT)
> M2 5 element 6m Yagi (2.0 SQ FT)
> 
> I will be using a 20' chromally mast, with 5' going into the tower.  That
> 
> leaves me 15' to use.  Hence, the top of the mast will be 85'.
> 
> Been reading alot about ideal take-off angles and have concluded that I'd
> 
> better put my 40m yagi on top (85'), with the 6m Yagi 7.5' (77.5') below
> it, 
> and the TH-11 right at the top of the tower(70').  Is this what you would
> do?
> 
> Esthetically, I'd rather do it in reverse, to resemble more of a Christmas
> 
> tree pattern (TH-11 on top), but feel that the added height on 40m might
> make 
> a difference and the lesser height on 10/15 more ideal...
> 
> Your thoughts are welcome!!
> 
> 73,
> Ed NI6S
> 
> 
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