NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Warning from the architect of GPS
From: Geoffrey Kolbe
Date: 2014 Feb 14, 12:31 +0000
From: Geoffrey Kolbe
Date: 2014 Feb 14, 12:31 +0000
On 14/02/2014 02:06, Brad Morris wrote: > Widespread jamming requires a series of powerful transmitters (or just > one). No big secret there. Actually, it is not quite as simple as that. Large and expensive systems that depend on GPS for navigation can use highly directional antennae to track the satellites using the ephemerides that are constantly downloaded to the receiver. This makes GPS reasonably jamming-proof. As I reported earlier, trials were done on one of the larger UK warships and the most determined effort to jam the GPS moved the ship a virtual 8 feet... Geoffrey Kolbe -- Dr Geoffrey Kolbe, Riccarton Farm, Newcastleton, TD9 0SN Tel: 013873 76715 Mob: 07811 154621
