[RFI] RFI Digest, Vol 77, Issue 11

George Gorsline VE3YV ve3yv at pathcom.com
Tue May 26 13:11:04 PDT 2009

The same warning is on the packaging of the cheap dollar store variety 
CFLs, but not on most of the other so called higher quality bulbs in 
hardware and big box stores (Noma, Globe are two brands available around 
here).  No issues with RFI here on those.  Only issue, beaten to death 
here a while ago, is life, especially when used in enclosed fixtures 
contrary to packaging instructions - observed failures here on early 100 
w models, so far.  YKMV (metric)
FWIW - There is a great article on how to recover the parts from a dead 
CFL and build an HF transmitter at 


73,  George VE3YV / K8HI

> ----------------------------------------------------------------------
> Message: 1
> Date: Tue, 26 May 2009 13:56:17 -0400
> From: "Andy" <ingraham.ma.ultranet at rcn.com>
> Subject: [RFI] CFL RFI warning sticker
> To: <rfi at contesting.com>
> Message-ID: <009401c9de2b$46c5d4e0$0402a8c0 at Ingraham>
> Content-Type: text/plain;	charset="Windows-1252"
> A warning sticker that came inside the packaging for a CFL, recently
> purchased:
>     This product complies with Part 18 of the FCC rules but may cause
>     interference to radios, televisions, wireless telephones and remote
>     controls.  If interference occurs, move the product away from these
>     devices or plug it into a different outlet.  Do not install this product
>     near maritime safety communications equipment or other critical
>     navigation or communication equipment operating between 0.45-30
>     MHz.  For additional product information, call 1-800-LIGHTBULB
>     (1-800-544-4828).                        X14701
> I don't recall seeing a similar RFI warning, specifying the MF+HF ranges, on
> any of the other CFLs I have purchased.  This one was printed on a small
> separate slip of paper, that was thrown in with the bulb itself; not printed
> on the main packaging itself with all the other text and warnings.

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