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Re: [RFI] Another Plea For Help

To: garywin1@dslextreme.com
Subject: Re: [RFI] Another Plea For Help
From: "Rick Karlquist" <richard@karlquist.com>
Reply-to: richard@karlquist.com
Date: Mon, 8 Mar 2010 14:43:53 -0800
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
I had a streetlight that made terrible noise only
when off.  Quiet as a church mouse when on.  I
talked the county into wiring it on all the time.

Rick N6RK


M. Macliammoir wrote:
> Does the rise in noise level start to increase as the lights go off?
> Around here they turn off slowly, perhaps done by  a local pole-mounted
> UV or other light-sensitive switch.  If so, perhaps there is a faulty
> switch not to far from you which is radiating, not shielded,  or shield
> not grounded properly?
>
> "Mercury vapor street lights are off when the noise level
> starts to climb in the late morning."
>
> Mac.
>
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