[Elecraft] Filtering RFI from LED & flouresence Dimmer Switches

[John Pitz]

For what it's worth, when LEDs first became affordable I thought the
perfect place to try one out was in the garage door opener.  With all
the vibration and the constant cycling on and off every time the beam
was broken an LED bulb seemed like a perfect fit.  We ran into an issue
immediately.  When we opened the door in the morning to go to work, the
controller would turn on the light bulb.  The light bulb somehow
clobbered the receiver so we were unable to close the garage door with
the remote.  We would have to get out of the car and go into the garage
to use the push button then try to scamper out without breaking the
beam.  When we got home from work we would be able to open the door with
the remote.  The only time the remote didn’t work was when the the light
was on.  The wife was convinced the opener was going bad.  I got to be
the hero and fixed the opener, by replacing the light bulb.  That was
one of the easiest repairs I have done to that thing hi hi! 

John Pitz
KD8CIV


On Mon, 2016-01-25 at 17:57 -0800, David Ahrendts wrote:

> Thanks to all who have posted on this thread. Very informative. I have an entire house full of Lutron dimmers — all servicing halogens — circa 2001 design (pre-LED). And being a green guy with solar panels on the roof and plug-in hybrid, I was considering LEDs for the whole house. Will step very carefully now because of this discussion. Curious, does anyone have an example of LED noise recorded?
> 
> David Ahrendts, KK6DA (formerly KC0XT), LA
> 
> 
> > On Jan 25, 2016, at 5:22 PM, Kevin Stover <kevin.stover at mediacombb.net> wrote:
> > 
> > My simple (=cheaper) solution is to get rid of the dimmers all together.
> > How much is a good old fashioned light switch at the big three, $1.50, two buck if you want a matching switch plate.
> > When we bought our house I replaced six dimmers. Didn't hear a peep from "she who must be obeyed".
> > I have about that many CFL's to swap out for LED's. The garage fluorescents will be a different story. They get to stay as long as they stay radio quiet.
> > 
> > On 1/25/2016 6:52 PM, Charlie T, K3ICH wrote:
> >> My simple (= cheep) solution is to simply turn off
> >> all dimmer controlled lights when I'm on the
> >> air.....
> >> For me, this is easy since there's only two in the
> >> whole house!
> >> 
> >> Charlie k3ICH
> >> 
> >> 
> > 
> > 
> > -- 
> > R. Kevin Stover
> > AC0H
> > ARRL
> > FISTS #11993
> > SKCC #215
> > NAQCC #3441
> > 
> > 
> 
> 
> 
> 
> David Ahrendts   davidahrendts at me.com   
> 
> 
> 
> 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to crustacean at brig-elec.com