X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Thu, 23 Nov 2006 09:29:24 -0500 Message-ID: X-Original-Return-Path: Received: from vms046pub.verizon.net ([206.46.252.46] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTP id 1596060 for lml@lancaironline.net; Thu, 23 Nov 2006 02:31:34 -0500 Received: from HOMEFAMILY1 ([71.105.197.234]) by vms046.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0J96002H2A8FV3HC@vms046.mailsrvcs.net> for lml@lancaironline.net; Thu, 23 Nov 2006 01:31:30 -0600 (CST) X-Original-Date: Wed, 22 Nov 2006 23:31:29 -0800 From: "Steve Rosenzweig" Subject: Nav antennas X-Original-To: "Lancair Mailing List" X-Original-Message-id: <000d01c70ed1$64728910$6401a8c0@HOMEFAMILY1> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 X-Mailer: Microsoft Outlook Express 6.00.2900.2869 Content-type: multipart/alternative; boundary="----=_NextPart_000_000A_01C70E8E.55F960E0" X-Priority: 3 X-MSMail-priority: Normal References: This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C70E8E.55F960E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I'm looking for some feedback from the group regarding Nav antenna = performance for different configurations of antennas. I currently have dual Nav/Comms that share one antenna for the Nav side. = This includes VOR/LOC/GS functions. The antenna coax goes to the input = of a diplexer and the two outputs each go to one of the Nav receivers. = The nav/comms are Apollo SL30 which have built in recievers for = VOR/LOC/GS. The problem I've seen since I acquired the airplane has = been poor performance with the LOC & G/S from either nav indicator. VOR = from both is good however. Has anyone noticed degraded performance using a single antenna for = VOR/LOC/GS functions? Are there any special diplexers that could be = used to improve degraded performance? or possibly a need to install a = seperate antenna for each receiver? I'm not sure what kind of Nav = antenna the builder used, but it is installed in the horizontal stab. thanks Steve Rosenzweig Lancaster, CA LNC360 ------=_NextPart_000_000A_01C70E8E.55F960E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I'm looking for some feedback from the = group=20 regarding Nav antenna performance for different configurations of=20 antennas.

I currently have dual Nav/Comms that = share one=20 antenna for the Nav side. This includes VOR/LOC/GS = functions. The=20 antenna coax goes to the input of a diplexer and the two outputs each go = to one=20 of the Nav receivers. The nav/comms are Apollo SL30 which have = built in=20 recievers for VOR/LOC/GS. The problem I've seen since I acquired = the=20 airplane has been poor performance with the LOC & G/S from either = nav=20 indicator. VOR from both is good however.

Has anyone noticed degraded performance = using a=20 single antenna for VOR/LOC/GS functions? Are there any special = diplexers=20 that could be used to improve degraded performance? or possibly a need = to=20 install a seperate antenna for each receiver? I'm not sure what = kind of=20 Nav antenna the builder used, but it is installed in the horizontal=20 stab.

thanks

Steve Rosenzweig

Lancaster, CA

LNC360

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