[Public-List] LEDs and interference
Marcelo D. Gentinetta
vanguard64 at cox.net
Sat Aug 25 04:49:32 PDT 2018
Stephen,
Do you have an LED conversion at the masthead or an LED fixture at the masthead ? My Aqua signal LED tricolor also sits next to the antenna but I have not noticed any interference. How does the interference manifest itself?
Marcelo
> On Aug 24, 2018, at 11:58 PM, Stephen Gwyn via Public-List <public-list at lists.alberg30.org> wrote:
>
> Just noticed that the masthead LED not only infereres with the VHF (not
> surprising, the antenna is right next to it) but also the AM/FM radio (more
> surprising, the antenna is 40 feet away).
>
> I'm now wondering if the interference is through the wires. I hope so.
> Otherwise the interference would be there if your neighbor had a bad LED.
> Conversely, my bad LED night be affecting my neighbor.
>
> SG
>
> SG
>
> On Fri, Aug 24, 2018, 1:24 AM <public-list-request at lists.alberg30.org>
> wrote:
>
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>> Today's Topics:
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>> 1. LED RFI (& TLA soup) (George Dinwiddie)
>> 2. Re: Public-List Digest, Vol 3707, Issue 1 (Marcelo D. Gentinetta)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Thu, 23 Aug 2018 15:29:21 -0400
>> From: George Dinwiddie <gdinwiddie at alberg30.org>
>> To: public-list at lists.alberg30.org
>> Subject: [Public-List] LED RFI (& TLA soup)
>> Message-ID: <456f4210-f3e5-a9ef-1da5-569bcc2aa63f at alberg30.org>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>>
>> On 8/23/18 3:09 PM, charles pleisse via Public-List wrote:
>>> So are we talking about a little interference or damaging equipment? If
>>> the former, just turn the darn light off for a minute.
>>
>> Low power, but who knows what you're affecting. You can hear it on the
>> VHF, but what's it doing to your GPS?
>>
>> FCC part 15 testing has probably changed since I was last involved in
>> the 80s, but often a quick fix to get through was to make cables an
>> optional accessory so they didn't need to be connected while testing.
>>
>> - George
>>
>> --
>> ----------------------------------------------------------------------
>> When I remember bygone days George Dinwiddie
>> I think how evening follows morn; gdinwiddie at alberg30.org
>> So many I loved were not yet dead, http://www.Alberg30.org
>> So many I love were not yet born. also see:
>> 'The Middle' by Ogden Nash http://idiacomputing.com
>> ----------------------------------------------------------------------
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Thu, 23 Aug 2018 14:30:31 -0500
>> From: "Marcelo D. Gentinetta" <vanguard64 at cox.net>
>> To: Alberg 30 Public List -- open to all
>> <public-list at lists.alberg30.org>
>> Subject: Re: [Public-List] Public-List Digest, Vol 3707, Issue 1
>> Message-ID: <322C7AAD-1CD4-4B4E-9ECC-7E6D8A7A2E94 at cox.net>
>> Content-Type: text/plain; charset=us-ascii
>>
>> I just came back from the boat and turned on my VHF together with all the
>> LED cabin lights and the masthead LED tricolor/anchor lights. I did the
>> squelch test as described in the CG article. I did not notice any
>> difference in the set point of the squelch. I listened to transmissions
>> over channel 16 and the weather channel and did not notice any change. I
>> also monitored the AIS and did not notice any issues.
>> My LED cabin lights are from Dr. LED and the masthead light is from
>> Aqua-signal 34 series. I will keep monitoring the situation to see if
>> anything changes.
>> Marcelo
>> #441
>>
>>
>>> On Aug 23, 2018, at 2:09 PM, charles pleisse via Public-List <
>> public-list at lists.alberg30.org> wrote:
>>>
>>> So are we talking about a little interference or damaging equipment? If
>>> the former, just turn the darn light off for a minute.
>>>
>>>
>>> Charles Pleisse
>>> College Park Bicycles
>>> ( <http://www.bike123.com>301)864-2211
>>>
>>> On Wed, Aug 22, 2018 at 4:04 PM, <public-list-request at lists.alberg30.org
>>>
>>> wrote:
>>>
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>>>> Today's Topics:
>>>>
>>>> 1. Radio interference problems from marine LED lighting (Paul Wilson)
>>>> 2. Re: Radio interference problems from marine LED lighting
>>>> (Michael Grosh)
>>>> 3. Re: Radio interference problems from marine LED lighting
>>>> (Marcelo D. Gentinetta)
>>>> 4. Re: Radio interference problems from marine LED lighting
>>>> (Michael Connolly)
>>>>
>>>>
>>>> ----------------------------------------------------------------------
>>>>
>>>> Message: 1
>>>> Date: Tue, 21 Aug 2018 18:06:06 -0400
>>>> From: Paul Wilson <dcmcrider at gmail.com>
>>>> To: Alberg 30 Public List -- open to all
>>>> <public-list at lists.alberg30.org>
>>>> Subject: [Public-List] Radio interference problems from marine LED
>>>> lighting
>>>> Message-ID:
>>>> <CAFfy=y1pzm1K21rUxJL-oAEbE_aCqoeqqb9yCJ_10HSiAPf2xw at mail.
>>>> gmail.com>
>>>> Content-Type: text/plain; charset="UTF-8"
>>>>
>>>> An interesting piece from the American Radio Relay League, quoting the
>>>> Coast Guard. I'd be a little concerned about the masthead LEDs adjacent
>> to
>>>> the VHF antenna.
>>>>
>>>> LED lighting (as with any electronic device) is supposed to be
>> certified as
>>>> "Part 15" compliant for spurious emissions, per FCC regulations.
>>>> ----------
>>>> http://www.arrl.org/news/us-coast-guard-warns-of-led-
>>>> lighting-interference-to-marine-radios-ais-reception
>>>>
>>>> Paul (KI4PW) Slainte #129
>>>>
>>>>
>>>> ------------------------------
>>>>
>>>> Message: 2
>>>> Date: Wed, 22 Aug 2018 08:06:35 -0400
>>>> From: Michael Grosh <dickdurk at gmail.com>
>>>> To: Alberg 30 Public List -- open to all
>>>> <public-list at lists.alberg30.org>
>>>> Subject: Re: [Public-List] Radio interference problems from marine LED
>>>> lighting
>>>> Message-ID:
>>>> <CAO99GuFMmZhz1rtm2gEeYJzj-gVkyk2Wv7F5f_B+qvRGyF6kcw@
>>>> mail.gmail.com>
>>>> Content-Type: text/plain; charset="UTF-8"
>>>>
>>>> So the electromagnetic expert engineer recommends try before you buy.
>> Try
>>>> what? How?
>>>> Looks like to make that happen you have to carry a vhf rig into the
>> store,
>>>> wire up the bulb you are interested in, and play with the squelch
>>>> (mentioned further in the article).
>>>> I'm not seeing that as a viable approach.
>>>> Michael Grosh
>>>> #220
>>>>
>>>> On Aug 21, 2018 9:44 PM, "Paul Wilson via Public-List" <
>>>> public-list at lists.alberg30.org> wrote:
>>>>
>>>> An interesting piece from the American Radio Relay League, quoting the
>>>> Coast Guard. I'd be a little concerned about the masthead LEDs adjacent
>> to
>>>> the VHF antenna.
>>>>
>>>> LED lighting (as with any electronic device) is supposed to be
>> certified as
>>>> "Part 15" compliant for spurious emissions, per FCC regulations.
>>>> ----------
>>>> http://www.arrl.org/news/us-coast-guard-warns-of-led-
>>>> lighting-interference-to-marine-radios-ais-reception
>>>>
>>>> Paul (KI4PW) Slainte #129
>>>> _______________________________________________
>>>> These businesses support your Association:
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>>>>
>>>> ------------------------------
>>>>
>>>> Message: 3
>>>> Date: Wed, 22 Aug 2018 07:14:08 -0500
>>>> From: "Marcelo D. Gentinetta" <vanguard64 at cox.net>
>>>> To: Alberg 30 Public List -- open to all
>>>> <public-list at lists.alberg30.org>
>>>> Subject: Re: [Public-List] Radio interference problems from marine LED
>>>> lighting
>>>> Message-ID: <0D1803FC-6B9F-4AD5-97F7-DFFBFB8949A3 at cox.net>
>>>> Content-Type: text/plain; charset=utf-8
>>>>
>>>> Well,
>>>> I just finished rewiring the boat and adding all new interior LED lights
>>>> including an LED tricolor/anchor light next to the VHF antenna at the
>>>> masthead. I also installed a new VHF/AIS radio. Yikes! I will have to do
>>>> the squelch test they describe in the article and see what happens.
>>>> Marcelo
>>>> #441 Alegr?a
>>>>
>>>>> On Aug 22, 2018, at 7:06 AM, Michael Grosh via Public-List <
>>>> public-list at lists.alberg30.org> wrote:
>>>>>
>>>>> So the electromagnetic expert engineer recommends try before you buy.
>>>> Try
>>>>> what? How?
>>>>> Looks like to make that happen you have to carry a vhf rig into the
>>>> store,
>>>>> wire up the bulb you are interested in, and play with the squelch
>>>>> (mentioned further in the article).
>>>>> I'm not seeing that as a viable approach.
>>>>> Michael Grosh
>>>>> #220
>>>>>
>>>>> On Aug 21, 2018 9:44 PM, "Paul Wilson via Public-List" <
>>>>> public-list at lists.alberg30.org> wrote:
>>>>>
>>>>> An interesting piece from the American Radio Relay League, quoting the
>>>>> Coast Guard. I'd be a little concerned about the masthead LEDs adjacent
>>>> to
>>>>> the VHF antenna.
>>>>>
>>>>> LED lighting (as with any electronic device) is supposed to be
>> certified
>>>> as
>>>>> "Part 15" compliant for spurious emissions, per FCC regulations.
>>>>> ----------
>>>>> http://www.arrl.org/news/us-coast-guard-warns-of-led-
>>>> lighting-interference-to-marine-radios-ais-reception
>>>>>
>>>>> Paul (KI4PW) Slainte #129
>>>>> _______________________________________________
>>>>> These businesses support your Association:
>>>>> http://www.alberg30.org/store/A30supporters.html
>>>>> Please support them.
>>>>> _______________________________________________
>>>>> Public-List mailing list
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>>>>> _______________________________________________
>>>>> These businesses support your Association:
>>>>> http://www.alberg30.org/store/A30supporters.html
>>>>> Please support them.
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>>>>
>>>>
>>>>
>>>> ------------------------------
>>>>
>>>> Message: 4
>>>> Date: Wed, 22 Aug 2018 09:03:38 -0400 (EDT)
>>>> From: Michael Connolly <crufone at comcast.net>
>>>> To: Alberg 30 Public List -- open to all
>>>> <public-list at lists.alberg30.org>
>>>> Subject: Re: [Public-List] Radio interference problems from marine LED
>>>> lighting
>>>> Message-ID: <340004311.236682.1534943018582 at connect.xfinity.com>
>>>> Content-Type: text/plain; charset=UTF-8
>>>>
>>>> Let us know your results
>>>>
>>>>> On August 22, 2018 at 8:14 AM "Marcelo D. Gentinetta via Public-List" <
>>>> public-list at lists.alberg30.org> wrote:
>>>>>
>>>>>
>>>>> Well,
>>>>> I just finished rewiring the boat and adding all new interior LED
>> lights
>>>> including an LED tricolor/anchor light next to the VHF antenna at the
>>>> masthead. I also installed a new VHF/AIS radio. Yikes! I will have to do
>>>> the squelch test they describe in the article and see what happens.
>>>>> Marcelo
>>>>> #441 Alegr?a
>>>>>
>>>>>> On Aug 22, 2018, at 7:06 AM, Michael Grosh via Public-List <
>>>> public-list at lists.alberg30.org> wrote:
>>>>>>
>>>>>> So the electromagnetic expert engineer recommends try before you buy.
>>>> Try
>>>>>> what? How?
>>>>>> Looks like to make that happen you have to carry a vhf rig into the
>>>> store,
>>>>>> wire up the bulb you are interested in, and play with the squelch
>>>>>> (mentioned further in the article).
>>>>>> I'm not seeing that as a viable approach.
>>>>>> Michael Grosh
>>>>>> #220
>>>>>>
>>>>>> On Aug 21, 2018 9:44 PM, "Paul Wilson via Public-List" <
>>>>>> public-list at lists.alberg30.org> wrote:
>>>>>>
>>>>>> An interesting piece from the American Radio Relay League, quoting the
>>>>>> Coast Guard. I'd be a little concerned about the masthead LEDs
>>>> adjacent to
>>>>>> the VHF antenna.
>>>>>>
>>>>>> LED lighting (as with any electronic device) is supposed to be
>>>> certified as
>>>>>> "Part 15" compliant for spurious emissions, per FCC regulations.
>>>>>> ----------
>>>>>> http://www.arrl.org/news/us-coast-guard-warns-of-led-
>>>> lighting-interference-to-marine-radios-ais-reception
>>>>>>
>>>>>> Paul (KI4PW) Slainte #129
>>>>>> _______________________________________________
>>>>>> These businesses support your Association:
>>>>>> http://www.alberg30.org/store/A30supporters.html
>>>>>> Please support them.
>>>>>> _______________________________________________
>>>>>> Public-List mailing list
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>>>>>> These businesses support your Association:
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>>>>>> Please support them.
>>>>>> _______________________________________________
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>>>>>
>>>>> _______________________________________________
>>>>> These businesses support your Association:
>>>>> http://www.alberg30.org/store/A30supporters.html
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>>>>
>>>> ------------------------------
>>>>
>>>> Subject: Digest Footer
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>>>> ------------------------------
>>>>
>>>> End of Public-List Digest, Vol 3707, Issue 1
>>>> ********************************************
>>>>
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>> Subject: Digest Footer
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