[TowerTalk] Fw: stacking yagis - benefits?
Thu, 30 Mar 2000 08:08:11 -0800
From: Al Williams <email@example.com>
To: firstname.lastname@example.org <email@example.com>
Date: Thursday, March 30, 2000 8:04 AM
Subject: stacking yagis - benefits?
>Never having operated stacked yagis, I have no experience to answer the
>following questions concerning operating when multiple yagis are connected
>1. If a yagi at 40' and a yagi at 70' are simultaneously driven, is the
>power being fed to each yagi reduced by one half? Then the radiation at
>major elevation angle is also reduced by one half?
>2. Radiation at the 40' and 70' elevation angles, when simultaneously fed
>will be less at each of those
>angles than if only one yagi is fed? This is because the radiation from
>other elevation angle is not enough to make up for the one half power lost
>at the other radiation angle?
>3. Radiation at angles between the 3 db down angle of the 40' & and the
>3db down angle of the 70' elevation angles will be increased up to a
>of 3db? if both yagis are fed over that of either
>yagi if only one is fed?
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