Questions & Answers

I have indeed read another part of the website about FCC regulations and the fact they impose wattage limits due to the nature of 2.4 ghz RF, the stuff used by microwave ovens to cook food. I wonder about the distance that must be maintained from the cantenna?

These antennas generally transmit using very low power levels, dispersion of microwave energy outside of the relatively narrow beam is minimal or insignificant, well below recommended safety limits. Basically, don't stand in front of a directional microwave antenna. See this FCC RF Safety page (How safe are microwave and satellite antennas?) for more information on RF exposure and health effects. See cell phone safety which claims that exposure to the low level RF from cell phones does not produce the heating effects that causes adverse health effects.

FDA Radiation Safety
Independent Expert Group on Mobile Phones
National Council on Radiation Protection & Measurements (NCRP) - Radiation Protection Guidelines

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