Talk:Radar speed sign

Effectiveness
Where are the references for the effectiveness studies?

Irradiating
Regarding the following:

The use of radar to detect automobile speeds is also irradiating pedestrians and people in the neighborhood. None of the companies who sell these signs address the impact on people walking by or playing near one of their signs.

Where is this concept of irradiating coming from? Is there any data to back up this claim? There's probably more "radiation" in my neighbors motion detection controlled lights...

In fact, here's information from the [|"Commonwealth of Virginia RF Radiation Exposure Compliance Plan"]

Speed measuring radar equipment most generally operates in the 10, 24, and 35 GHz bands at power levels of 100 milliwatts or less. The NRCP recommends that no part of the body should be closer than 30 cm from the radiating end of the device, or said another way, from the front of the device. In practice, it is a good idea to be totally in back of the device, as the radiated beam can diffuse somewhat to the sides. Short exposures in front of the device, for example to calibrate the device, should not be harmful. In addition, because the eyes may be particularly susceptible to radio frequency energy at these frequencies, one should never look into the front of the device at close range while it is operating.

I'm removing the block on the main page about irradiation...