It is quite possible that the products--while claimed to meet Part 15--actually do not, either on some lots or all of them. The real question is whether anyone checks after the original determination.
Garry, NI6T On 4/5/2012 6:07 PM, Jim F. wrote: > Hi George, > > I first noticed the problem as a hiss on my favorite FM radio station. > > > Tod, K0TO had a very good thought, that it may be the dimmable feature. > > To answer your question George, : Yes... Marked Clearly on the box. > > >> I am wondering the if the LED >> bulbs bought from Home Depot meet FCC Part 15 specs. Were >> they marked so? >> George, AA7JV > > jim / W1FMR > > > --- On Thu, 4/5/12, GeorgeWallner<aa...@atlanticbb.net> wrote: > > > From: GeorgeWallner<aa...@atlanticbb.net> > Subject: Re: Topband: Home Depot LED bulb interference. > To: "TOPBAND"<TOPBAND@CONTESTING.COM> > Date: Thursday, April 5, 2012, 7:10 PM > > > On Thu, 5 Apr 2012 16:01:12 -0400 > "Mike Greenway"<k...@bellsouth.net> wrote: >> I wondered how long it would take before they started >> selling some RFI >> generating lighting. Soon we can have a complete >> neighborhood of RFI > I have tested compact fluorescent bulbs a couple of years > ago and found that they were noisy. I have not tried to > quantify the level of noise emitted, but it was about S5 > on my K3 at a distance of about 4 feet using a one foot > wire for antenna. I have stayed with incandescent, but my > neighbor has installed over 50 of them on his house. The > noise coming from that direction (NW) is significantly > stronger than what I get from any other direction. Since > he has installed the CF (and many LED) bulbs, I have not > made one JA QSO! Fortunately, my DHDL, which looks towards > EU (NE) completely blocks the noise and I am still able to > work Europe. > > On the other hand, I have LED lights installed on my dock, > which is only about 20 feet to the East of the RX antenna, > but these LED lights are driven by well filtered drivers > in metal boxes. No noise from these lights can be > detected. > > It seems to me that we have a very serious threat from > noisy "switched" light sources (and other digital noise > generators, like Variable Frequency Drives) that have not > been properly filtered. I am wondering the if the LED > bulbs bought from Home Depot meet FCC Part 15 specs. Were > they marked so? > > George, AA7JV > > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK