Mailing List lml@lancaironline.net Message #53851
From: Jim MacKnight <jmack102ea@gmail.com>
Sender: <marv@lancaironline.net>
Subject: Re: RE: [LML] GPS Outage
Date: Thu, 17 Dec 2009 09:37:01 -0500
To: <lml@lancaironline.net>
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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