Protecting antennas

Article By : John Dunn

The method used to protect antenna installations from humans is similar to protecting bird houses from squirrels.

I’ve noticed two antenna installations within a few miles of here that look to me like towers topped with whatever antennas serve for communications and enshrouded in what looks like large diameter fiberglass tubing. One installation is in Baldwin, NY, and it looks like the following image taken from Google Maps:

antenna installationFigure 1 This real antenna installation appears to include protection from vandalism.

The shroud serves to protect the antenna(s) within from vandalism. Nobody can climb up and get to the antennas to do them any harm. Additionally, if nobody can see the antennas, it diminishes the temptation.

I just couldn’t help noticing the parallel to an arrangement being used at Clark Botanical Garden in Albertson, NY that protects a bird house from climbing squirrels.

antenna protectionFigure 2 The protection schemes for antennas and bird houses are similar.

The two structures have a lot in common, don’t you think?

Protection from squirrels and protection from humans is pretty much the same problem and calls for pretty much the same solution. Of course, noticing this might make someone feel a little squirrely.

John Dunn is an electronics consultant, and a graduate of The Polytechnic Institute of Brooklyn (BSEE) and of New York University (MSEE).

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