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Extend your Wi-Fi range with a parabolic reflector

How you can create a simple add-on for your router's antenna that will boost and focus the wireless signal.

By Zack Stern, PCWorld | PC World | Published: 14:53, 27 October 10

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Plot Your Parabola

Using the data that Parabola Calculator generated, plot your parabolic curve on a sheet of graph paper. Trace this curve onto cardboard or balsa wood.

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