I stacked lowest on top for my mobile roving installation using this
rationale... 2m on top, 220 below, 432 below, etc. It doesn't have the
pretty Christmas tree look, but the idea was to get the 2m a 1/2 wave above
the surface of the vehicle, etc. for each antenna. I figured the higher
frequencies would not alter the pattern much below the lower freq antennas
on top.
Steve, N5AC
-----Original Message-----
From: vhfcontesting-bounces@contesting.com
[mailto:vhfcontesting-bounces@contesting.com] On Behalf Of frank bechdoldt
Sent: Thursday, October 27, 2005 7:33 PM
To: t3@semarg.ath.cx; VHFcontesting@contesting.com
Subject: Re: [VHFcontesting] Stacking distance for 50,144,432?
stack at least 1/4 of a wavelength of the antenna below, IE 1/4 of 6 meters
to the 2 meter then 1/4 of 2 meters to the 222 then 1/4 of 1.25 m to the
432. But at the higher freqs they can go bigger. Of course biger the
better. Tou can see my stack by typing my call in qrz. Thats 6 bands in 4
feet. I think it might be better to put the 6 meter beam on top too since
it will have a wide lobe and the small antennas below it would be little
shadow for the earth reflection and the 6 might put some of the smaller
bands back towards ground. Theres a 6 on top of that array in the pictire.
k3uhf/ frank
> [Original Message]
> From: t3 <T3@semarg.ath.cx>
> To: VHFcontesting@contesting.com <VHFcontesting@contesting.com>
> Date: 10/27/2005 4:04:51 PM
> Subject: Re: [VHFcontesting] Stacking distance for 50,144,432?
>
>
> The M2 guys told me 4 feet between the antenna's
> but thats for M2
>
> Tony
> NN1D
>
>
> steve d wrote:
> > Hi, I am wondering what the stacking distance should be for a 5 element
50mHz beam, 13 element 144mHz beam, a 21 element 432mHz beam, and a 144/440
dual band beam (5 elements each band). I want to stack them in the above
order from bottom to top (50,144,432, dual). I am hoping it isnt TOO far
hehehe.
> >
> > Steve, KC8QVO
> >
> >
> > ---------------------------------
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> >
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