It may be a traffic preemption receiver for public safety vehicles 
(police and fire) to be able to pass through an upcoming intersection 
on a green light as opposed to approaching a red and having to 
negotiate cross traffic.

Dan
KA8YPY


On Apr 1, 2006, at 4:38 AM, Mike Morris wrote:

> Some interesting boxes have been appearing on street lights in my area.
>
> Anybody know what they are?
>
> <http://www.repeater-builder.com/wa6ilq/whatsthis.html>
> (two photos totalling about 175KB)
>
> Mike WA6ILQ
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>





 
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