On 9/22/2012 7:23 PM, Roger D Johnson wrote:
Are the porch lights photocell controlled? My neighbor had a
controlled lamp at the
end of his driveway. He replaced the incandescent bulb with a CFL.
Horrible noise!
I found that some of the older controllers will not work properly with
CFLs.
73, Roger
They could be Roger. I'll find out more when I see my neighbor.
Tony
On 9/22/2012 4:34 AM, Tony wrote:
All:
I ventured out at 4AM this morning and found the noise! It turned out
to be my neighbors CFL porch light. There are two lights on the porch
and the one that's not working is the one making the noise. The
working CFL isn't exactly quiet, but it's nowhere near as loud as the
non-working light.
I used a battery powered HF rig with a make-shift coax antenna; just
the center conductor with the shield stripped away. I made sure I
checked the noise at the house before I left and used the same
frequency on the portable. That made the noise easy to identify once
heard.
I also shut the mains on the house and kept them off just to make
sure it wasn't coming from my home. The noise was still there with
the mains off. The puzzling thing is the light switch issue....
The noise being generated by my neighbors CFL shifts in frequency (by
several kHz) when I turn off the light switch in MY shack! It will be
interesting to see what happens when he replaces his bad CFL.
So are there any quiet CFL's on the market? Lowes have them?
Thank for all.
Tony -K2MO
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