[Antennas] Beam spacing

[Howard W3CQH]

----- Original Message ----- 
From: "Michael M. Raskin" <rask1553 at bellsouth.net>
To: <Antennas at mailman.qth.net>
Sent: Saturday, November 01, 2008 10:01 AM
Subject: [Antennas] Beam spacing


>I want to stack a M2 2M9 2M beam (14' 6" boom) above a M2 6M7JHV 6M beam 
>(30' 8" boom).  What is the closest I can space them without any 
>significant interaction?  Also, the 2M and 6M beams will be above a 3 
>element Stepp-IR with the 30/40 adder.  I am not concerned with the 
>Stepp-IR interfering with 6M7JHV as I can retract the elements on the 
>Stepp-IR (no 6M passive element) when using the 6M7.  However, I am 
>concerned with the 6M7JHV interacting with the Stepp-IR on 10-40M.  I have 
>a 14' of available mast.  Are there any recommendations for spacing the 
>three beams or am I being too ambitious?
>
> Mike, W4UM
> Florida Contest Group
> South Florida DX Association
> Mid-Florida DX Association
Should be 1 wavelength for the 6m beam = 19' or so.. go any safe distance 
that you can mount it above the Stepp-IR.

Should be 1 wavelength for the 2m beam = 39" or so above the 6m beam.

73's de Howard w3cqh