X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from www.whiteaspen.com ([66.180.170.33] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 987280 for flyrotary@lancaironline.net; Thu, 16 Feb 2006 09:15:11 -0500 Received-SPF: none receiver=logan.com; client-ip=66.180.170.33; envelope-from=crj@lucubration.com Received: from [10.1.1.98] (unknown [10.101.1.102]) by www.whiteaspen.com (Postfix) with ESMTP id 19A94B8016 for ; Thu, 16 Feb 2006 09:14:20 -0500 (EST) Message-ID: <43F488BB.6080609@lucubration.com> Date: Thu, 16 Feb 2006 09:14:19 -0500 From: Chad Robinson User-Agent: Mozilla Thunderbird 1.0.6 (X11/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Radio noise saga References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Bobby J. Hughes wrote: > I would bet you found the problem. DC power leads should always be run > as a pair. A nice uniform twist is also good but I do not remember how > many twist per foot is recommend. Twisted pair only reduces noise in signals transmitted THROUGH the wire, and it only works if the receiver uses a differential signal. It doesn't help with power wires. The curious can drop by: http://www.duxcw.com/digest/Howto/network/cable/cable4.htm It's a fairly good, brief description of what goes on. You'll usually only find twisted pair in LAN cabling. Regards, Chad