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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+RFI\s+suppression\s+in\s+alarm\s+system\s*$/: 2 ]

Total 2 documents matching your query.

1. [RFI] RFI suppression in alarm system (score: 1)
Author: W5OT@aol.com
Date: Thu, 22 Oct 2009 15:25:52 EDT
Monitored Burglar/Fire Alarm System RFI Solved Most monitored systems have two keypads which are hard wired to the central alarm unit. The keypads are active, even when the system is in standby statu
/archives//html/RFI/2009-10/msg00041.html (8,481 bytes)

2. Re: [RFI] RFI suppression in alarm system (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 22 Oct 2009 17:36:26 -0700
John, Are these common mode chokes or differential mode chokes? You can easily wind your own common mode chokes to cover three harmonically related ham bands by winding the right number of turns arou
/archives//html/RFI/2009-10/msg00042.html (8,104 bytes)


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