X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from pproxy.gmail.com ([64.233.166.181] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 984127 for flyrotary@lancaironline.net; Mon, 13 Feb 2006 23:48:52 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.233.166.181; envelope-from=hansconser@gmail.com Received: by pproxy.gmail.com with SMTP id n25so1351444pyg for ; Mon, 13 Feb 2006 20:48:10 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:mime-version:in-reply-to:references:content-type:message-id:content-transfer-encoding:from:subject:date:to:x-mailer; b=Cq5q2AnCeQXnZbYoV11sb5cjggkBghaypUfevYqIH76rs+5wibrAAvQC3ihyltE+w07g1BdIX1HG7TOTwNVpC0us9HodMDbr7nwcini7qcRIhZTcgty/F0TUSh/EBezvTZFDUhNAFMnLnVijzcPlSa2dtZXWJyFtIgWBs3GZwWQ= Received: by 10.35.101.9 with SMTP id d9mr1031433pym; Mon, 13 Feb 2006 20:48:09 -0800 (PST) Return-Path: Received: from ?69.144.193.207? ( [69.144.193.207]) by mx.gmail.com with ESMTP id n40sm387075pyg.2006.02.13.20.48.09; Mon, 13 Feb 2006 20:48:09 -0800 (PST) Mime-Version: 1.0 (Apple Message framework v623) In-Reply-To: References: Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <1d204f0bae0d2a85fd312b8452544cf4@gmail.com> Content-Transfer-Encoding: 7bit From: Hans Conser Subject: Re: [FlyRotary] Radio noise Date: Mon, 13 Feb 2006 21:48:05 -0700 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.623) Is your coax tight? I have seen situations where the center conductor has lost the shielding, ie there is sliding of the outer portions of the coax exposing the center wire, usually cause by lot enough slack. Hans On Feb 13, 2006, at 6:59 PM, Bulent Aliev wrote: > Here is a problem for you large brained engineers: > My radio is picking up noise from all the electrical motors including > the alternator. I took the alternator to the shop and checked "as > new". When I disconnect the coax from the radio, the noises stop, > which leads me to believe the antenna coax is picking up the > interference somehow. Guy at the airport suggested a clamp-on ferrite > filter on the coax. I bought one tonight, but did not have time to > test it. > The offenders are: fuel pumps, nose gear motor and alternator. > Any Ideas? > > > Buly > CZ MK-IV > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >