The final part of the cantenna is the radome. This protects the antenna element and the reflector assembly from the elements. Most of the radomes in industry are made from UV resistant plastics or UV painted fiberglass. I chose to use fiberglass, as it is very easy to get and is easy to form. I created a plug form from a 3" tube.
Rubber gasket material was used to form the ridge. Hot-glue was used to affix it
A cardboard end cap
Wrapped with industrial plastic wrap. Afterward a liberal application of petroleum jelly or mold release
Small gap for sealant
Automotive silicone sealant affixes the finished radome to the antenna
Finished product
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