I bet that the new dimmers have gone to a PWM controller, they are not using
the RC network and a SCR to control the turn on turn off times. If it is a
Pulse Width Modulation controller then that explains the rfi on 40 meters. If
it is a PWM controller then maybe a common-mode choke will work on the 120 line
suppling power to the lights and controller. I saw the other day some real
small PWM controllers that would fit into
a dimmer box. Again I would check with the neighbor and let them hear the RFI
with a receiver and check the maker of the dimmer. I would do some explaining
of the problem. This is a part 15 device and even if it is not a part 15
device, the RFI is not exceptable or allowed by law. just like a bad door bell
transformer, it cannot cause RFI.
richard
wb4byq
________________________________________
From: dalej [dj2001x@comcast.net]
Sent: Wednesday, February 02, 2011 5:18 AM
To: Battles,Richard
Cc: rfi@contesting.com
Subject: Re: [RFI] Gone then back
It blankets the bands, worse is 40 meters, but I can hear it up on six too when
my high gain M2 yagi is pointed at the house.
Lutron is a good brand, I'll keep it in mind. I visited a local Home Depot the
other day and noticed a whole shelf full of dimmer devices. They looked like a
new technology dimmers. I'll have to check them out a little closer next time.
Tnx
Dale,k9vuj
On 01, Feb 2011, at 20:19, Battles,Richard wrote:
> I have light dimmer switches in my home with no rfi at all. they are the
> Lutron type with the three way switch and dimmer. i am wondering what
> frequency do you hear this rfi, is it very broad in nature. if it is the
> dimmer
> then i would check the brand.
>
> richard
> wb4byq
>
> ________________________________________
> From: rfi-bounces@contesting.com [rfi-bounces@contesting.com] On Behalf Of
> dalej [dj2001x@comcast.net]
> Sent: Tuesday, February 01, 2011 2:15 PM
> To: RFI List
> Subject: Re: [RFI] Gone then back
>
> Hello Richard,
>
> All good suggestions and thankyou, but I rather have mfg recall defective
> product and that would come about with the FCC getting better at monitoring
> potential emitters like they monitor new ham rigs before allowing mfg to sell
> them. The local home improvement stores are loaded with them. Not all are
> bad, but the bad ones need to be dealt with. A do-it-yourselfer will most
> always go with the least expensive solution and that will be the cheap junk.
> As a legal license holder the burden of proof or enforcement should not be my
> responsibility. My other neighbor is at this very moment getting some
> remodeling done to his house. I dread the thought of more dimmer lights on
> the other side of me.
>
> This comes close to neighborhood speeders for example, who happen to live
> across the street, the police rarely patrol so the burden is on the homeowner
> to snitch on the neighbor which in turn causes friction, that would apply to
> your method too. I don't want to live in a war zone. Let the mfg buck-up
> and clean up, but it takes a strong enforcement from the FCC which so far has
> not appeared at as far as I can tell.
>
> I have entertained the idea of getting the biggest KW and running it at full
> legal power then see what happens next.
>
> Dale, k9vuj
>
>
>
> On 31, Jan 2011, at 17:43, Battles,Richard wrote:
>
>> do what i have done. write a complaint about the problem, address it to the
>> ARRL, Mike Gruber, he will send them a letter, he will also copy the letter
>> to the FCC, give them about 60 days to fix the problem, contact you if the
>> problem has been fixed, if not then the complaint will be forward to the FCC
>> and they will send the a letter.
>> I have found that if i was causing them RFI they will complain to someone.
>> I just tell my neighbors that that device is causes RFI to a license
>> service, do some explaining, give them a sample letter that can be found on
>> the internet, and you understand that they cannot know or understand the
>> problem, but the RFI needs to stop.
>>
>> I have done this to two neighbors and we still speak to each other. They
>> need to be informed consumers, just as we are.
>>
>> Just another day in the neighborhood. they will most likely get over it.
>>
>> richard
>> wb4byq
>>
>> ________________________________________
>> From: rfi-bounces@contesting.com [rfi-bounces@contesting.com] On Behalf Of
>> dalej [dj2001x@comcast.net]
>> Sent: Monday, January 31, 2011 5:31 PM
>> To: Rick Scott
>> Cc: rfi@contesting.com
>> Subject: Re: [RFI] Gone then back
>>
>> Probably a neighbors dimmer light. I got one here too. I can put my
>> portable SW up to the power meter or any wires and it comes in stronger. I
>> know for a fact it's their dimmer because I went over with my SW rx one day
>> and had them shut it off and the noise went away. Sadly, our FCC does
>> nothing about the sale of this junk and leaves it up to the licensed
>> operator to somehow get the neighbor to fix it which is not an easy task.
>> Short of a class-action lawsuit against all mfg that make and import this
>> crap, there is not much we can do about it except try to get the neighbor to
>> co-operate and fix it, not likely.
>>
>> Good luck
>>
>> Dale, k9vuj
>>
>>
>>
>>
>> On 31, Jan 2011, at 17:13, Rick Scott wrote:
>>
>>> My noise went away for the weekend now its back with a vengeance. I need to
>>> wait for the ARRL RFI guy.
>>>
>>> I have a Grundig Receiver I took in the garage and had it on the worst
>>> frequency
>>> and then shut down the house.
>>>
>>> Never went away, so its definitely external.
>>>
>>> Thing is, I can hear it on every light fixture and near the wall power when
>>> I
>>> take the mini antenna and walk around
>>> the house, so its definitely coming in on the house wire.
>>>
>>>
>>> Scotty W7PSK
>>>
>>>
>>>
>>> _______________________________________________
>>> RFI mailing list
>>> RFI@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rfi
>>
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