When I was changing the bulbs out I took the opportunity to remove all
dimmers, never really used them, and a touch lamp the wife hated (large
blessing on me).
The wife has been looking at touch faucets for the sink. They've got to
be an RFI nightmare. I said NO. Plumber makes enough the way it is. Now
you have to find one that can wire the faucet too. One step too far.
The wife's quilting machine is next. it's going to get the K9YC treatment.
On 10/24/2017 7:55 AM, Bob McGraw K4TAX wrote:
The only time I've noticed RFI issues from CFL or LED bulbs is when they
are being excited by RF. I've measured 3 or 4 different ones of
different brands and wattage ratings. This was done using a fixture
where by the bulb was mounted on a suitable surface in a socket with the
transmit antenna {dual band VHF/UHF} some 6 ft away from the lamp and
the receive antenna {connected to a spectrum analyzer with a similar
dual band VHF/UHF antenna}, about 6 ft from the lamp. In all cases no
noise above background noise was observed. When the transmitter was
activated, the spikes of noise appeared. With the transmitter off, the
spikes again were not present. Not a real analytical or scientific
method but some degree of indication that some are better than others,
some are worse than others.
73
Bob, K4TAX
K3S s/n 10163
--
R. Kevin Stover AC0H
FISTS #11993
SKCC #215
NAQCC #3441
ARRL
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
