made4trade wrote:Maybe going off thread slightly, but here is my story.
Departed in Military Restricted Airspace yesterday which was active and was cleared to to so. The Garmin 296 would not pick up any Sats'. After a few unsuccessful attempts to get it going I received a call from Pearce Departures clearing me from restricted airspace. Literally 2 seconds later the 296 was up and running.
I was just wondering is big brother jamming the signal through military airspace or was this purely co-incidental?
Sat Nav's work on inbound signals from 4 or more from geostationary satellites (usually 7) and it is a military system that civvie world have adopted. Jamming them would be counter productive as both military aircraft and ground personnel now use them for any navigation. Can I assume you didn't use that Sat nav to get to your take off point? If that is the case then it can take up to 10 minutes to locate the new satellites and work out relative positions thus triangulating you. The attempts to get it going (i assume turning it off and on again) restarted this process.
Regards
a gadget freak