[TowerTalk] HF Yagi side mount gate design

[Chuck R. Korzendorfer]

John,
  W9RE had a great article in the Sept/Oct 1987 issue of NCJ on side mounts.  I followed is design on my tower & can recommend Mike’s article..
Chuck KM5G

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From: TowerTalk <towertalk-bounces at contesting.com> on behalf of john simmons <jasimmons at pinewooddata.com>
Sent: Wednesday, February 18, 2026 1:28:06 PM
To: TowerTalk at contesting.com <TowerTalk at contesting.com>
Subject: [TowerTalk] HF Yagi side mount gate design

[External Email]

Doing some early noodling for side mounting HF Yagis on 55G. Please, thoughts and ideas on rotating gate's sizing. I'm perfectly comfortable with designing brackets, masts, rotors and etc but get lost on how long (far from tower) the gate should be. The amount of rotation can be <up to> 300 deg or so, but the distance of the inner elements from the mast may reduce the available rotation. Of course if the inner elements are really close to the mast then the antenna cannot rotate at all. And if the gate is too long the load on the tower and side mount gets really high, and the gate must be really strong.

Anyone have any rules of thumb, animations, videos, drawings and so on? TIA

73
-de "Curly" John NI0K
QRZ.com<https://www.qrz.com/db/ni0k>
Hamshack Hotline<https://hamshackhotline.com/> call me: 6100271
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