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Total 5 documents matching your query.

1. [RFI] Nighthawk CO2 Detector (score: 1): Author: cgooden@insightbb.com (Chuck Gooden - N9QBT); Date: Sun, 18 Aug 2002 19:29:12 -0500; I am having RFI problems with a Nighthawk CO2 detector when I operate on 40 Meters. Does anyone have any Ideas on how to get rid of this problem. I am planning to try a Ferrite core on the AC Line (h; /archives//html/RFI/2002-08/msg00036.html (6,845 bytes)
2. [RFI] Nighthawk CO2 Detector (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 19 Aug 2002 09:34:08 -0500; If the signal is coupled to the line in differential mode, then this might work although in in-line coil would work better; but usually it's induced common mode onto the line. If it's common mode, t; /archives//html/RFI/2002-08/msg00040.html (8,057 bytes)
3. [RFI] Nighthawk CO2 Detector (score: 1): Author: ke2n@cs.com (ke2n@cs.com); Date: Mon, 19 Aug 2002 11:32:03 -0400; They have a web site where you can ask a question, although its unlikely to be fielded by an engineer ... http://www.kiddesafety.com/kiddesafetycorp/contact.html The company would probably be happy t; /archives//html/RFI/2002-08/msg00041.html (8,974 bytes)
4. [RFI] Nighthawk CO2 Detector (score: 1): Author: michael.findley@ni.com (michael.findley@ni.com); Date: Mon, 19 Aug 2002 11:00:53 -0500; A 500pF cap (around 40 ohms @7.5MHz) rated for 230Vac would also work in an X configuration for differential noise. The cap will be usefull also in a Y configuration if common mode noise is the probl; /archives//html/RFI/2002-08/msg00042.html (11,227 bytes)
5. [RFI] Nighthawk CO2 Detector (score: 1): Author: Doug Renwick <ve5ra@sasktel.net>; Date: Thu, 15 Nov 2007 12:53:13 -0600; My Nighthawk carbon dioxide alarm KN-COPP-3 would alarm when I operated on the low bands. I removed it from the wall plug and plugged it into an old TCE Laboratories KW-1 Pure AC output filter and th; /archives//html/RFI/2007-11/msg00068.html (8,196 bytes)

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