X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Fri, 11 Aug 2006 20:22:09 -0400 Message-ID: X-Original-Return-Path: Received: from mta10.adelphia.net ([68.168.78.202] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1318995 for lml@lancaironline.net; Fri, 11 Aug 2006 19:12:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=68.168.78.202; envelope-from=dfs155@adelphia.net Received: from dan ([70.36.5.58]) by mta10.adelphia.net (InterMail vM.6.01.05.02 201-2131-123-102-20050715) with SMTP id <20060811231150.FKMW28427.mta10.adelphia.net@dan> for ; Fri, 11 Aug 2006 19:11:50 -0400 X-Original-Message-ID: <00dc01c6bd9b$87d7b880$0301a8c0@dan> From: "Dan Schaefer" X-Original-To: "Lancair list" Subject: Re: [LML] Re: GPS ground plane X-Original-Date: Fri, 11 Aug 2006 16:11:51 -0700 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 Mike, Chat - GPS antennas don't require an external ground plane, whatever they need is internal to the antenna module. Mike, what you're calling a ground plane in the submitted photo is probably nothing more than a mounting shelf. Mine is mounted just behind my head aft of the roll-bar on the center-line on a fiberglass shelf (no metal other than the connector and cable) and does just fine (very high S/N ratio on a bunch of satellites). Dan Schaefer