X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <marv@lancaironline.net> Sender: <marv@lancaironline.net> To: lml@lancaironline.net Date: Fri, 24 Sep 2010 13:31:28 -0400 Message-ID: <redirect-4479747@logan.com> X-Original-Return-Path: <dballin@gmail.com> Received: from mail-qy0-f173.google.com ([209.85.216.173] verified) by logan.com (CommuniGate Pro SMTP 5.3.9) with ESMTP id 4478575 for lml@lancaironline.net; Thu, 23 Sep 2010 17:36:53 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.173; envelope-from=dballin@gmail.com Received: by qyk9 with SMTP id 9so290998qyk.4 for <lml@lancaironline.net>; Thu, 23 Sep 2010 14:36:18 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:content-type; b=mTDH5T0VBp8WNlT5EEKJZB3ImKZbXYMOEEt9Ql/O29TH6dTlGbNVSCmEaNJ/fc5SOX /38kFn/YsVGhEVBIGDBRCVpnRmsFIRxOXhRTLICHgRsneMOcx/3p5/9HuPuQvzKc/Hxx ggHbyBaD7FVMx9V5qry8GLPiSpK5aTsn9NNmc= MIME-Version: 1.0 Received: by 10.229.37.71 with SMTP id w7mr1823046qcd.192.1285277778734; Thu, 23 Sep 2010 14:36:18 -0700 (PDT) Received: by 10.229.239.21 with HTTP; Thu, 23 Sep 2010 14:36:18 -0700 (PDT) Reply-To: dballin@gmail.com In-Reply-To: <list-4478537@logan.com> References: <list-4478537@logan.com> X-Original-Date: Thu, 23 Sep 2010 14:36:18 -0700 X-Original-Message-ID: <AANLkTimUAMZmbv6toEBSNxxVD0vOPfBzo4hmCxc=LgaG@mail.gmail.com> Subject: Re: [LML] Transponder ground plane From: Dan Ballin <dballin@gmail.com> X-Original-To: Lancair Mailing List <lml@lancaironline.net> Content-Type: text/plain; charset=ISO-8859-1 I'm no expert, but no the carbon isn't good enough. You need about a 4" ground plane. I've had good luck with the copper paint. Dan Ballin On Thu, Sep 23, 2010 at 2:24 PM, Carl Scheid <cscheid@charter.net> wrote: > We want to mount a transponder antenna in the belly of our LIV. Does the > carbon fiber provide an adaquate ground plane? > >