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Re: [RFI] CO2 detectors and RFI

To: rfi@contesting.com
Subject: Re: [RFI] CO2 detectors and RFI
From: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 23 Oct 2013 23:51:06 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On 10/23/2013 5:10 PM, dalej wrote:
Just a heads up.

I purchased a Kidde NightHawk CO2 detector model KN-COP-DP-LS, it is designed 
to plug into a wall outlet plus it has a 9 v. battery backup and LED readout.  
While transmitting on 80 meters after a while it starts audible warning, very 
loud.  I called the company tech support line and they did not have any 
solution.  As an experiment I plugged the detector into a two wire extension 
cord and wrapped the extension around a #31 mix snap-on, then tested and it did 
not go off.  The tech support said not to use an extension cable with the 
detector.

CO2 or CO? Not many homes worry about CO2. Only detectors I'm familiar with are for vessel entry.

73

Roger (K8RI)

So if you are looking for a CO2 detector be aware of this problem with 80 meter 
RFI tripping the detector.  I went to strictly battery powered CO2 detector and 
that works fine.

Dale, k9vuj
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