On Wed, 2005-05-18 at 15:42 +1000, Tony Smith wrote:
> Yep, you can usually see where the coil is, fairly big loop.
> 
> Tend not to work for motorcycles though, which is a pain if you're riding
> one.
> 
> Parking garages use them too, you usually see them on the 'in' entrance.
> Years ago, a friend of mine determined that there was enough metal in the
> average toolbox to trigger them.  He'd send the apprentice off to trigger
> the gate, then drive out the in entrance, thus saving the parking fee.

My buildings, a LONG time ago, used to have one for the main parking
area gate.

Discovered while riding my bike that if you drove your bike ALONG where
the coil was buried you'd trigger the gate! Worked flawlessly. TTYL


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