Return-Path: Sender: (Marvin Kaye) To: lml Date: Fri, 27 Sep 2002 15:23:10 -0400 Message-ID: X-Original-Return-Path: Received: from sccrmhc02.attbi.com ([204.127.202.62] verified) by logan.com (CommuniGate Pro SMTP 4.0b8) with ESMTP id 1792660 for lml@lancaironline.net; Fri, 27 Sep 2002 15:12:41 -0400 Received: from attbi.com ([66.30.42.21]) by sccrmhc02.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20020927191237.ICCI1934.sccrmhc02.attbi.com@attbi.com> for ; Fri, 27 Sep 2002 19:12:37 +0000 X-Original-Message-ID: <3D94AB82.4A75DD2F@attbi.com> X-Original-Date: Fri, 27 Sep 2002 15:03:30 -0400 From: "Angier M. Ames" Reply-To: N2811A@attbi.com Organization: Alpha Delta Research X-Mailer: Mozilla 4.77 (Macintosh; U; PPC) X-Accept-Language: en,pdf MIME-Version: 1.0 X-Original-To: " (Lancair Mailing List)" Subject: Re: TCAD antennae References: Content-Type: text/plain; charset=us-ascii; x-mac-type="54455854"; x-mac-creator="4D4F5353" Content-Transfer-Encoding: 7bit Turns out I got prematurely excited on this issue without having all the data. Unlike the Ryan 9900A, the B is highly directional with 4 receivers vs 2 in the A model and the antennae are quite different also. Oh well, thought I could save a few bucks and I should have known better. In any event, it turns out that the 9900A is incompatible with the MX20 display so my plane is being shoved into yet another higher cost bracket! And yes, their antennae need to be mounted top and bottom with ground planes. According to Ryan, the ground plane issue is neatly solved by spraying conductive paint on the skin surface with the antenna in physical contact with the paint. Angier Ames