>Standard microwave guns have problems too. Switching LED arrays held
>close to the
>antenna cause a false  high-speed reading on one of the most popular
>units here in
>the colonies. Its that tiny RF burst that is released when LED's are
>switched on/off
>that cause the problem. F-15 cockpit displays had to have a shield
>within the display glass to stop this, too.

My understanding was that almost any radio transmitter could upset most of
the microwave units. A ham colleague used to take great delight in keying
his 2m unit and watching cop with 10GHz radar go looking around for whoever
was making smart comments about radar cops. The 24GHz units may have better
waveguide filtering to stop this sort of interference.

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