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LED Lights Interfering with VHF Signals

 
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Phil Barnes



Joined: 20 Jul 2010
Posts: 109
City/Region: Colorado /San Juan Islands
State or Province: CO
C-Dory Year: 1991
C-Dory Model: 22 Cruiser
Vessel Name: Swan-C
PostPosted: Tue Mar 12, 2019 3:15 pm    Post subject: LED Lights Interfering with VHF Signals Reply with quote

Interesting Marine Safety Alert issued August 2018 by USCG on LED lights interfering with VHF and AIS communications.

https://tinyurl.com/y9jnlv4x
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hardee



Joined: 30 Oct 2006
Posts: 9823
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
PostPosted: Tue Mar 12, 2019 7:29 pm    Post subject: Reply with quote

Thanks Phill. This bulletin has been around for a while but I had not downloaded or did the simple check. Good to know AND do. Wink

Harvey
SleepyC Moon

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Marco Flamingo



Joined: 09 Jul 2015
Posts: 799
City/Region: Seattle
State or Province: WA
C-Dory Year: 2004
C-Dory Model: 16 Cruiser
Vessel Name: Limpet
Photos: Limpet
PostPosted: Wed Mar 13, 2019 12:59 pm    Post subject: Reply with quote

Interesting article. I don't have very many electronics on board. But it probably would be simple to run the test in the article for every item. Check for possible interference with the power inverter, microwave, induction burner, generator, etc. It might come in handy to know what to shut off when it is really important to broadcast or receive and maybe it's more than just LED lights.

Mark
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hardee



Joined: 30 Oct 2006
Posts: 9823
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
PostPosted: Sat Mar 16, 2019 11:08 pm    Post subject: Reply with quote

Mark, I would be really interested in what your results are with the microwave. Seems like that could be a possible RFI or EMF source that a radio might pick up.

Harvey
SleepyC Moon

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Marco Flamingo



Joined: 09 Jul 2015
Posts: 799
City/Region: Seattle
State or Province: WA
C-Dory Year: 2004
C-Dory Model: 16 Cruiser
Vessel Name: Limpet
Photos: Limpet
PostPosted: Sun Mar 17, 2019 5:45 pm    Post subject: Reply with quote

Harvey,

I don't have a microwave on board. But I do have an induction burner. I couldn't begin to tell you how either of them actually work, but I wouldn't be surprised if both are candidates for messing up radio signals.

Mark
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hardee



Joined: 30 Oct 2006
Posts: 9823
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
PostPosted: Mon Mar 18, 2019 12:16 pm    Post subject: Reply with quote

Oh sorry for the assumption Mark. I thought you listed all the stuff you had on board. I didn't look at your albums but I see it is a 16. That would have been a highly loaded 16. I'm still interested in the VHF radio response with the Induction cooker. Please, keep us posted. And Thank you.

Harvey
SleepyC Moon

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