X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 17 Dec 2009 09:37:01 -0500 Message-ID: X-Original-Return-Path: Received: from mail-yw0-f178.google.com ([209.85.211.178] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4025161 for lml@lancaironline.net; Thu, 17 Dec 2009 01:16:42 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.211.178; envelope-from=jmack102ea@gmail.com Received: by ywh8 with SMTP id 8so1842313ywh.3 for ; Wed, 16 Dec 2009 22:16:07 -0800 (PST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=gg47Re2JVxb8sJvOjnulKABqtN88COpehCfKw5a1RtyOKE8/uEgEd/5uB2YIn1DeSE iDygP1suL9/c07nk6qHPCDSuC8wu9Emcx5v2oOa6xe04JZl0HZJtPsobplC5rAagh79r lR3hIlsSOle6IFwKyuLbqEM3OxxbnQUzRkOog= Received: by 10.150.237.4 with SMTP id k4mr3344164ybh.93.1261030567471; Wed, 16 Dec 2009 22:16:07 -0800 (PST) X-Original-Return-Path: Received: from ?192.168.1.108? (71-80-232-248.dhcp.mghl.ca.charter.com [71.80.232.248]) by mx.google.com with ESMTPS id 8sm758930yxg.42.2009.12.16.22.16.04 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 16 Dec 2009 22:16:06 -0800 (PST) X-Original-Message-ID: <4B29CCAB.3040505@gmail.com> X-Original-Date: Wed, 16 Dec 2009 22:16:11 -0800 From: Jim MacKnight User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 X-Original-To: Robert Mitchell X-Original-CC: Lancair Mailing List Subject: Re: RE: [LML] GPS Outage References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit How do you spell spoofers and L1 jammers :)
AF1's P channel devices can handle it and work "a bit differently"
Jim MacKnight
LNC2
N1222K
8 years GPS receiver designer

Robert Mitchell wrote:
Another GPS anecdote:
 
Last spring in Phoenix, when Obama was in town I was driving near PHX (Skyharbour) with my Garmin 496 on the dash. Coincidentally I had my car radio on and happened to be getting live coverage of Obama's departure when I noticed loss of GPS signal that lasted more than the usual couple of seconds.  I turned to the signal page on the 496 and had one bar indicating full, no other bars were showing.  I monitored this and exactly 20 minetes after Obama lifted off in Airforce One, the bars (about 8) all came on suddenly like someone flipped a switch. 
 
I called FAA, (not Tracon) and was told to "call DOD".  I also checked the TFR's and found that it's end time was about 10 more minetes after the GPS signal came back.
 
Bob Mitchell
N56SH
 


From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Sky2high@aol.com
Sent: Wednesday, December 02, 2009 8:37 AM
To: lml
Subject: [LML] GPS Outage

Even this didn't show a problem
 
 
Grayhawk
 
In a message dated 12/1/2009 7:52:08 P.M. Central Standard Time, grabiel@freeway.net writes:
I live in Northern Lower Mi. Based at a Joint civil military base. Today I flew across to the west side of the state. Lost both 430 and 396 signals. All the way over and most of the way back! Could not even use the VOR in the 430! Froze with a big yellow caution sign! Called Garmin, first question they ask- Are you near any military installations? Hmm! Anybody else have similar experiences? I really don't think it is my system.  Don Grabiel
Sent from my BlackBerry Smartphone provided by Alltel

-----Original Message-----
From: Sky2high@aol.com
Date: Tue, 01 Dec 2009 06:31:04
To: lml<Invalid address>
Subject: [LML] Lancairs afoot!
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