X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 03 Nov 2007 19:04:24 -0400 Message-ID: X-Original-Return-Path: Received: from wind.imbris.com ([216.18.130.7] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTPS id 2453687 for lml@lancaironline.net; Sat, 03 Nov 2007 10:27:38 -0400 Received-SPF: none receiver=logan.com; client-ip=216.18.130.7; envelope-from=brent@regandesigns.com Received: from [192.168.1.100] (cbl-238-80.conceptcable.com [207.170.238.80] (may be forged)) (authenticated bits=0) by wind.imbris.com (8.12.11/8.12.11.S) with ESMTP id lA3EQxGi006660 for ; Sat, 3 Nov 2007 07:26:59 -0700 (PDT) (envelope-from brent@regandesigns.com) X-Original-Message-ID: <472C852F.2010903@regandesigns.com> X-Original-Date: Sat, 03 Nov 2007 07:26:55 -0700 From: Brent Regan User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: GPS Error Content-Type: multipart/alternative; boundary="------------020602010902080004080903" This is a multi-part message in MIME format. --------------020602010902080004080903 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Bill, I do not recall the 89B being connected to any of the aircraft systems that measure altitude. The "altitude fail" flag is likely a signal integrity issue. If the GPS does not have enough good satellites locked to get an altitude fix within the prescribed limits then the warning flag is set. Check your antenna, the coax and, in particular the connectors. A little corrosion is almost invisible but very detrimental to signal strength. Let us know what you find. Regards Brent Regan --------------020602010902080004080903 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Bill,

I do not recall the 89B being connected to any of the aircraft systems that measure altitude. The "altitude fail" flag is likely a signal integrity issue. If the GPS does not have enough good satellites locked to get an altitude fix within the prescribed limits then the warning flag is set. Check your antenna, the coax and, in particular the connectors. A little corrosion is almost invisible but very detrimental to signal strength.

Let us know what you find.

Regards
Brent Regan
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