Obviously, the RF signal strengths will vary if a plane is mobile aloft or on the ground. ----- Original Message ----- From: "Charles LaPierre" <charles@xxxxxxxxxxxxxxxx> To: <gps-talkusers@xxxxxxxxxxxxx> Sent: Wednesday, August 08, 2007 6:45 PM Subject: [gps-talkusers] Re: GPS when flying? Hi Andy Either way, inside or outside airplanes are shielded, the MythBusters were inside the aircraft when they did their experiments, granted the plane wasn't flying but that shouldn't matter. Charles At 10:36 AM 8/8/2007, you wrote: >Hello Charles, > >I was referring to RF generated from within the aircraft. > >Andy Charles M. La Pierre CTO Sendero Group, LLC Lat. 37 15' 25" N Lon: 121 53' 04" W