Mechanically, you want to distribute each antenna's twisting force
across a tower face, rather than concentrate it on one leg (unless
you're talking about a small UHF or VHF Yagi). if you pay attention to
that, it makes no difference which "leg" it's on. So if you have the
boom to mast plate attached to a leg, the antenna needs a stiffarm from
the boom to another leg.
Electrically, if the tower face width is an appreciable percentage of a
wavelength, the yagis should all be on the same side or leg of the
tower. But for HF yagis on R45 tower for example, it won't make much
difference.
-Steve K8LX
On 06/18/20 21:34 PM, Larry K4AB wrote:
Is there any advantage or disadvantage to stacking Yagis
on the same tower leg as opposed to mounting one Yagi on
one leg, and the second Yagi on the opposite leg?
Either electrically or mechanically.
I recall some discussion on this topic before, but am unable
to locate it in the archives. Thanks.
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