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Re: Red lights that don't change



morris@grian.cps.altadena.ca.us (Mike Morris) writes:
>
>On my older Honda 400cc twin I could just place the front wheel over the
>wire.  But there are a few places...

The aluminium Honda Comstar wheels don't work though, as they contain
terrible magnetic properties... Maybe I should get some steel belted
tires? ;)

>the low sensitivity of the loop. One phone call to city public 
>works / traffic engineering had it added to the list for the signal 
>crew.  The cop, after hanging up the pay phone, told me it would be 
>fixed within a couple of weeks - it was fixed in a week.

Good service.  Maybe my problem is, I tell the traffic tech over
beers on a Friday night.

>That spot probably has two loops - one close, one back one car length,
>and the front loop is probably not working... One intersection here in

Or just much less sensitive.

>Maybe somebody could come up with a oscillator & coil unit that could
>me mounted under the engine of a motorcycle - press a button after you
>pull over the loop and get a good solid pulse into the loops.  All it
>would take is reading the frequency of the loop (i.e. transformer
>effect), then echo back a burst a little off frequency.

And if that doesn't work, then it would send out a larger burst of
power and smoke the signal control box...  Then you could really
claim it was defective. ;)




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