X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 04 Mar 2009 08:13:24 -0500 Message-ID: X-Original-Return-Path: Received: from omr6.networksolutionsemail.com ([205.178.146.56] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTP id 3526183 for lml@lancaironline.net; Tue, 03 Mar 2009 21:36:40 -0500 Received-SPF: none receiver=logan.com; client-ip=205.178.146.56; envelope-from=steve@oasissolutions.com Received: from mail.networksolutionsemail.com (ns-omr6.mgt.netsol.com [10.49.6.69]) by omr6.networksolutionsemail.com (8.13.6/8.13.6) with SMTP id n242a4ZN004433 for ; Tue, 3 Mar 2009 21:36:04 -0500 Received: (qmail 27662 invoked by uid 78); 4 Mar 2009 02:36:03 -0000 Received: from unknown (HELO ?127.0.0.1?) (steve@oasissolutions.com@67.164.84.26) by ns-omr6.lb.hosting.dc2.netsol.com with SMTP; 4 Mar 2009 02:36:03 -0000 X-Original-Message-ID: <49ADE908.9080800@oasissolutions.com> X-Original-Date: Tue, 03 Mar 2009 18:35:52 -0800 From: Steve Richard User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] TruTrak autopliot and RF References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I used this and it helped:  http://www.vonero.com/index.php?/showproduct/853439

Steve Richard

Chris Zavatson wrote:
A recent upgrade to more powerful com radios has introduced a bit of an undesirable problem with the Trutrak autopilot.  When the auto pilot is engaged and the #2 radio is keyed, serious pitch oscillations occur.  While the Trutrak installation materials discuss its relative immunity to RF, it does suggest shielding the lines to the control wheel steering switch. if interference is encountered.  The radio upgrade included switching from RG58 to RG142, so the overall shielding is improved, however, the antenna for the #2 radio is much closer to the autopilot wiring and hardware than the #1 antenna.  The interference appears to be be coming directly off the comm antenna and not from any 'leaks' on the way there.
Are there any tried and true fixes for making the Trutrak immune to RF?  I really didn't want to re-invent the wheel on this one. 
 
Chris Zavatson
N91CZ
L360std