[RFI] CO2 detectors and RFI

[Roger (K8RI)]

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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