[RFI] Low RFI 60w CFL bulb

Roger (K8RI) k8ri at rogerhalstead.com
Sat Mar 7 00:56:04 EST 2015

Again as with other topics, my experience is only one mans experience, 
making it anecdotal but I have, or rather had CFLs in all the house 
lights.  I did no checking other than my normal 160 through 440 
operation. I heard no interference, or detected any increase in noise 
floors.  Going to the screw in LED replacements was the same.  I made no 
special search for specific  manufacturers, or brands.

The only interference I've found was from a computer to my HT setting 
"on" the computer breaking the squelch with an S2 signal (hash). A foot 
away and it could not be heard even with the squelch open.


Roger (K8RI)

On 2/22/2015 7:39 PM, Chris L. Parker wrote:
> Hello Group,
> A quick post regarding my RFI experience with CFL bulbs.
> I recently bought 3 brands of CFL bulbs at the local big-box DIY store for a nightstand lamp.
> I placed my SW portable on the nightstand (about 1.5 feet from bulb) and listened on 454 KHz, 4, 7, 14, and 21 MHz for RFI.
> I heard significant RFI from the Philips EnergySaver Silicone Coating 14w =60w featuring TuffGuard protection, soft white, shatter resistant, 790 lumens, 2 pack.
> I heard significant RFI from the Cree 4Flow, 60w, 2700K, soft white, dimmable, 815 lumens, single pack.
> I heard nil RFI from the GE energy smart, Bright from the Start, 60w uses 15w, 800 lumens, soft white, 2 pack.
> Thus, I recommend the GE energy smart, Bright from the Start CFL bulb for RFI sensitive applications. As always, YMMV.
> Hope this helps.
> Chris
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