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Re: [RFI] Laser Christmas Lights

To: "rfi@contesting.com" <rfi@contesting.com>
Subject: Re: [RFI] Laser Christmas Lights
From: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Tue, 24 Nov 2015 19:59:59 +0000
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
I happened to see this email, so I am going to get one of these from Lowe's and 
make some measurements of it.

ARRL does have the capability of making measurements of noise levels, to see if 
these devices meet the FCC rules, so it is best that we hear directly about 
possible interference sources.   Email rfi@arrl.org with info on noisy devices.

Ed Hare, W1RFI



-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Greg's
Sent: Sunday, November 22, 2015 8:44 PM
To: rfi@contesting.com
Subject: [RFI] Laser Christmas Lights

Beware- like most electronic junk allowed to be sold today, the new "laser 
Christmas lights" that project various patterns on your neighbours decorated 
house, are RFI buzz machines.

Mine (and the ones up and down the street) take care of killing most the HF 
spectrum and includes some nice AM BC Band swaths of frequencies as well.

Mine and units were sold by Lowes , and have a plastic lens globe on the front 
of the fixture, which is pointed towards the desired surface to make a pretty 
pattern.

The  "destructive" RFI range heard on my portable radio was + 40 feet.  Seems 
these lights are the new, popular effect this year and most folks may be 
surrounded by installations.

Unfortunately,  my antennas are also all within a 25 foot separation of the 
neighbours, and the general increase in noise floor from the residential area 
won't make for a Merry Christmas.  

Greg
VE3FAX




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