[TowerTalk] Single tower and 3 monoband yagis - "Christmas three"

[Joe Subich, W4TV]

Unless the monobanders have been designed to operate in a stack
("Christmas tree"), stacking them as closely as will be needed to
stay within your 5m mast will certainly reduce their performance.

If the monobanders have been optimized to work in a stack, use the
spacing for which they were designed.

73,

    ... Joe, W4TV


On 2014-12-11 9:16 AM, Fuad Arnautovic wrote:
> Hi all
>
> I need advice from some more experienced with stacking about possible setup.
>
> Have self-standing tower abt 18 mtr, mast 50 mm (2") 5-6 metres long
>
> Antennas are three monoband yagis as follows
>
> 20m 4el 9,5m boom
> 15m 5el 9,6m boom
> 10m 5el 7,6m boom
>
> Does it "Christmas tree" setup working well with this monobanders? What is your recommendation for vertical spacing between? Does 2" mast is strong enough to support all them.
>
> I would install lowest antenna for 20m then 15m and on the top 10m
>
> I know that is compromise against performance and radiation pattern, but actually cannot install another tower
>
> Please help
>
> Thanks in advance
> Fudo, E73CQ
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