X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 18 Dec 2013 20:43:49 -0500 Message-ID: X-Original-Return-Path: Received: from mail-qc0-f177.google.com ([209.85.216.177] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6644644 for lml@lancaironline.net; Wed, 18 Dec 2013 18:10:08 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.177; envelope-from=dballin@gmail.com Received: by mail-qc0-f177.google.com with SMTP id m20so307874qcx.8 for ; Wed, 18 Dec 2013 15:09:34 -0800 (PST) X-Received: by 10.49.84.105 with SMTP id x9mr58227665qey.65.1387408174285; Wed, 18 Dec 2013 15:09:34 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.89.233 with HTTP; Wed, 18 Dec 2013 15:09:04 -0800 (PST) Reply-To: dballin@gmail.com In-Reply-To: References: From: Dan Ballin X-Original-Date: Wed, 18 Dec 2013 15:09:04 -0800 X-Original-Message-ID: Subject: Re: [LML] Shielded Wiring Best Practices X-Original-To: Lancair Mailing List Content-Type: text/plain; charset=ISO-8859-1 Valin - I am by no means an expert and I would consider talking to Bob Nuckols, but I did a few common sense things and so far haven't had any issues with electromagnetic noise. First follow what the avionics install manuals suggest. All pretty much designate whether the shield should be grounded or left "free" and what type of wire to use. When the shield has to be broken to jump a switch or connector, make the pig tail short as possible, < than 6". I also ran most of my sensor wires down the left side of the plane and the big power and grounds down the right. It seems like the biggest issue are the strobes. I have the aeroleds and although some had issues, I used shielded cable and grounds everywhere and not a peep is heard over the com. You also might want to give Jon Hadlich a call from AI systems. He has a lot of experience in these issues and is an overall great guy. my 2 cents. BTW if you need any wiring diagrams, I would be happy to share what I did Dan Ballin N386DM