[PPRAANet] source of interference

[SkinnyFlea 262]

 N0BAA here. Most of the LED bulbs my family has gotten have been terrible
with the RFI. As said it seems a lot of brands from Ace Hardware are
problematic with my experience too.  KD0SFY has got a point with LED RFI
originating from off your property. I have many ceiling can lights from a
remodel that will completely wipe out the entirety of HF, causing S9 noise
on an antenna ~60ft away. I have been able to walk about 40 yards and am
still able to clearly pick up RFI. The noise is almost identical to power
line noise as said, but can be a little harsher. Some will just create
wideband white noise. The issue is I haven't been able to find consistency
with bulbs. Some affect HF. Some just affect VHF, but even bulbs of the
same brand and type can cause different issues. KB9RLW has a video on his
youtube channel showing how he reduced some of the noise by adding a cap to
a fixture. As much as I love using LEDs they are a major issue on the
radio. I hope this was helpful to all trying to figure out some RFI.
73 de N0BAA

On Tue, Oct 4, 2022 at 7:56 PM John Bloodgood <johnbloodgood at hotmail.com>
wrote:

> I have had mixed results with Feit brand LED bulbs. Some seem fine, others
> are noisy, even among the same model. I had one down in the basement and my
> radio room is upstairs on the second floor, the antenna is in the attic and
> offset by about 20 feet. The interference was significant even separated by
> that distance, so even a bad bulb in a neighbor’s house could be an issue.
>
>
>
> John Bloodgood, KD0SFY
>
> From: K3ILC<mailto:je_madsen at comcast.net>
> Sent: Tuesday, October 4, 2022 2:34 PM
> To: PPRAA<mailto:ppraanet at mailman.qth.net>
> Subject: [PPRAANet] source of interference
>
> For the past few months, I've been receiving interference on the 2-meter
> band -- it sounds like power-line interference, and is strong enough to
> interfere with some of the weaker 2-meter FM signals.
> Today, I finally got off my butt and tracked down the source.  It is
> coming from two 8.8 watt LED bulbs I used to replace old ones in the
> kitchen (regular bulbs, not like the fluorescent tubes).  They are Feit
> brand -- think I bought them at Ace Hardware.
>
> So if they want to sell you Feit, put up a fight (or something like that).
>
> BTW tracking the source was simple.  Since it was on the 2-meter band, I
> switched my Yaesu FT60 HT to the AM mode, and walked around until I
> located the source.
>
> 73
> Jim
> K3ILC
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-- 
*Ben Anderson*
*73's   **N0BAA*