GeekGirl1
The Medium IS the Message
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join:2007-01-28
Morrisville, PA
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| reply to n1zuk
Re: Delta Beams
I used to have a 2-el tri-band HF quad antenna. Fiberglass supports. Carried it up to the top of my 50' Rohn-25 tower over my shoulder (really!).
Then the wind hit it. Wind loading is an understatement.
One thing that you realize after a while is that the wire is stressed at the points it passes through the supports, i.e. the apex where it forms the "squares". Over time, the wire breaks. That will happen. A pain to fix. Hence, the popularity of rigid metal elements (yagi).
If you remember all those CB quad antennas from a long time ago- just about every one had broken wires on it. Not many were kept in good condition. |
