X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 02 Apr 2010 14:06:28 -0400 Message-ID: X-Original-Return-Path: Received: from snt0-omc3-s35.snt0.hotmail.com ([65.55.90.174] verified) by logan.com (CommuniGate Pro SMTP 5.3.5) with ESMTP id 4193539 for lml@lancaironline.net; Fri, 02 Apr 2010 13:01:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.55.90.174; envelope-from=gary21sn@hotmail.com Received: from SNT112-DS18 ([65.55.90.135]) by snt0-omc3-s35.snt0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Fri, 2 Apr 2010 10:00:45 -0700 X-Originating-IP: [24.216.229.86] X-Originating-Email: [gary21sn@hotmail.com] X-Original-Message-ID: X-Original-Return-Path: gary21sn@hotmail.com From: "Gary Edwards" X-Original-To: "Lancair Mailing List" References: In-Reply-To: Subject: Re: GPS reception issue X-Original-Date: Fri, 2 Apr 2010 10:00:38 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_3D2A_01CAD24B.5A8EF960" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MIMEOLE: Produced By MSN MimeOLE V10.00.0070.1500 Seal-Send-Time: Fri, 2 Apr 2010 10:00:38 -0700 X-OriginalArrivalTime: 02 Apr 2010 17:00:45.0805 (UTC) FILETIME=[095D71D0:01CAD286] This is a multi-part message in MIME format. ------=_NextPart_000_3D2A_01CAD24B.5A8EF960 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Does the canopy frame have multiple layers of carbon fiber at the front = area for hinge re-enforcement? Is the canopy painted with metallic = paint? Gary Edwards LNC2 The signal reception on my Garmin 420 is really dodgy. We've tested = the unit on a bench and it worked great. We've swapped the antenna, no = change. We swapped the antenna cable, it actually got quite a bit worse = (the old one had intermittent issues, the new one is dodgy, nearly full = time.) If I route the cable 'just so', I can make it work fairly well on the = ground with the canopy open, but it tends to go to hell when I close the = canopy. =20 If I unscrew and lift the glare shield about 1/2" - 1", the reception = is great. The GPS antenna is attached to the top of the glare shield on = the co-pilot side. I'm going to get some help from a shop in debugging this...but it = seems to me that part of the canopy is either causing interference = within the antenna cable, or the antenna itself. Has anyone experienced anything like this before? This is in a 360. Keith ------=_NextPart_000_3D2A_01CAD24B.5A8EF960 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Does the canopy frame have multiple layers of carbon fiber at the = front=20 area for hinge re-enforcement?  Is the canopy painted with metallic = paint?
 
Gary Edwards
LNC2
The signal reception on my Garmin 420 = is really=20 dodgy.  We've tested the unit on a bench and it worked = great.  We've=20 swapped the antenna, no change. We swapped the antenna cable, it = actually got=20 quite a bit worse (the old one had intermittent issues, the new one is = dodgy,=20 nearly full time.)

If I route the cable 'just so', I can make = it work=20 fairly well on the ground with the canopy open, but it tends to go to = hell=20 when I close the canopy. 

If I unscrew and lift the glare = shield=20 about 1/2" - 1", the reception is great.  The GPS antenna is = attached to=20 the top of the glare shield on the co-pilot side.

I'm going to = get some=20 help from a shop in debugging this...but it seems to me that part of = the=20 canopy is either causing interference within the antenna cable, or the = antenna=20 itself.

Has anyone experienced anything like this before? This = is in a=20 360.

Keith
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