X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop: No license found, only first 5 messages were scanned Return-Path: Received: from [66.37.197.101] (HELO o1.xlccorp.com) by logan.com (CommuniGate Pro SMTP 5.1c.1) with SMTP id 1204643 for flyrotary@lancaironline.net; Sat, 24 Jun 2006 07:47:40 -0400 Received-SPF: none receiver=logan.com; client-ip=66.37.197.101; envelope-from=bbradburry@allvantage.com Received: (qmail 5453 invoked from network); 24 Jun 2006 11:46:54 -0000 Received: from dialup-4.235.39.235.dial1.orlando1.level3.net (HELO h2m6k0) (4.235.39.235) by o1.xlccorp.com with SMTP; 24 Jun 2006 11:46:54 -0000 Message-ID: <004001c69783$ecd17de0$eb27eb04@h2m6k0> Reply-To: "Bill Bradburry" From: "Bill Bradburry" To: "Rotary motors in aircraft" References: Subject: Radio Noise Date: Sat, 24 Jun 2006 07:47:03 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Tracy's instructions say to ground all unused sensor pins. This may be your problem if some are not connected... Bill Bradburry Ed, that is a worthwhile suggestion. I am going to pick up some resistors tomorrow. I note that the sensors are 10 to 180 ohms for temp and pressure, was there a reason for the suggestion of 20K? Thanks. Bill Schertz KIS Cruiser # 4045 ----- Original Message ----- From: "Ed Anderson" To: "Rotary motors in aircraft" Sent: Friday, June 23, 2006 9:07 PM Subject: [FlyRotary] Re: Radio noise > Just a WAG, Bill. Could it be the oscillator of the microchip in the EM2 > generating the nose because some of the pins (tied to the sensors) are not > a complete circuit. Might try just hooking up some 20K ohm resistors > between your sensor leads and ground just to see. Either that or perhaps > getting feed back from the chip on your power lines suggesting a low value > .01uf capacitor. > > Ed > ----- Original Message ----- > From: "Bill Schertz" > To: "Rotary motors in aircraft" > Sent: Friday, June 23, 2006 6:42 PM > Subject: [FlyRotary] Radio noise > > >>I am in the process of wiring up and testing each piece of electronic >>equipment before putting the top on my plane which will make it much >>harder to get access. >> >> I have an SL-30 NAV/COM and SL-40 COM. The COM works, but when I turn on >> the EM-2 I get a bunch of hash (white noise). Any suggestions on >> diagonstics? The EM-2 is not connected to 'all' sensors yet. >> >> Bill Schertz >> KIS Cruiser # 4045