Saturday, February 11, 2012

Aha Moment: Quick and Dirty Temporary Antenna Mast

I've been racking my brain on how to put together a temporary, non-penetrating antenna mast. I need to test WiFi coverage using a sector antenna on a flat rooftop using inexpensive materials. Tonight, I was inspired.

This idea uses EMT conduit. Two pieces are bent 90 degrees. A long piece also has one end bent to 90 degrees. They are to be held down with 120 degree separation using EMT straps screwed into a sheet of plywood. They will be connected together using cut allthread that penetrates all three pipes in two locations. The entire thing will be weighted with concrete blocks.

This design benefits in being made with readily available and inexpensive parts. In addition, the design allows me to use the top allthread as a pivot to make the mast a tilt-down design.

The biggest challenge will be drilling through the pipes. I'll need to find somebody with a drill press.

I am thinking about using at least 3/4 inch conduit. I'll need a pipe bender too.

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