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Re: [RFI] Garage Door RFI

To: "'RFI List'" <rfi@contesting.com>
Subject: Re: [RFI] Garage Door RFI
From: "David Robbins" <k1ttt.dave@gmail.com>
Reply-to: k1ttt@arrl.net
Date: Fri, 12 Jun 2020 14:18:47 -0000
List-post: <mailto:rfi@contesting.com>
Had a neighbor who had a problem like that...  the funny thing is that it seems 
to affect operation even when the bulbs are off!  how does that work???

David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: telnet://k1ttt.net:7373



-----Original Message-----
From: RFI [mailto:rfi-bounces+k1ttt=arrl.net@contesting.com] On Behalf Of Jim 
McCook
Sent: Friday, June 12, 2020 13:37
To: RFI List
Subject: [RFI] Garage Door RFI

For years I've easily opened my garage door with the car's remote system from 
400 ft. away.  A few weeks ago I noticed that was no longer possible.  Even 
from my own driveway it was often hard to open it.  I had installed a couple of 
11w LED bulbs in the main motor unit.  I had no concern, since I have 35 Cree 
LED floods in my house that do not create noise beyond a few inches.  This was 
different.  Those bulbs generated noise in the 300Mhz spectrum that interfered 
with the reception from the remote.  Replacing them with 23w CFL lights solved 
the problem. Beware of LED lights in a garage door opener!!!
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