At 2011-01-21 08:15, SteveC wrote:
GPS might not work;
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Looks like this one extends as far north as SC, too.
See other scheduled tests (in CA, FL, LA) here:
http://www.navcen.uscg.gov/pdf/gps/gpsnotices/GPS_Interference.pdf
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Hello,
Or it could be that they are testing their new satellites. The US has been
working on deploying new generations of GPS satellites. Previously, you
could get interesting ephemerides data from the satellite that was within 2
hours. Sometimes you could see 4 hours and now we have observed 6
On 21 January 2011 19:18, John Smith deltafoxtrot...@gmail.com wrote:
On 22 January 2011 04:13, si...@mungewell.org wrote:
Also if you know where the source of the jamming is coming from would
it be possible to use that information to over come some of the
degradation?
Nope, not if the
On 21 January 2011 19:18, John Smith deltafoxtrot...@gmail.com wrote:
On 22 January 2011 04:13, si...@mungewell.org wrote:
Also if you know where the source of the jamming is coming from would
it be possible to use that information to over come some of the
degradation?
Nope, not if the
GPS might not work;
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Steve
stevecoast.com
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GPS might not work;
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Similar NOTAMS issued for the west cost too
Also
https://www.notams.jcs.mil/dinsQueryWeb/displayGPSWAASNotamAction.do
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01/019 (A0009/11) - GPS NAV GLOBAL POSITION SYSTEM PSEUDO RANDOM NOISE 25
U/S. 24
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Subject :Re: [OSM-talk] Watch out if mapping in Florida, Georgia...
From :mailto:si...@mungewell.org
Date :Fri Jan 21 11:01:06 America/Chicago 2011
GPS might not work;
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Similar NOTAMS issued for the west cost too
Also
https
2011/1/21 j...@jfeldredge.com:
At a guess, they are probably testing how well the system would work for the
military if the signals were encrypted, as they probably would be in the
event a terrorist group or foreign military were thought to be about to
launch an attack using GPS-guided
On 22 January 2011 03:49, M∡rtin Koppenhoefer dieterdre...@gmail.com wrote:
2011/1/21 j...@jfeldredge.com:
At a guess, they are probably testing how well the system would work for the
military if the signals were encrypted, as they probably would be in the
event a terrorist group or foreign
Doesn't some of the surveyor gear try to lock onto the frequency to
improve accuracy, even if they can't decrypt the signal?
Yes although P-Code is encrypted, it is usable in some form to improve
positional accuracy with some civilian receivers.
http://en.wikipedia.org/wiki/GPS_signals
On 22 January 2011 04:13, si...@mungewell.org wrote:
Also if you know where the source of the jamming is coming from would
it be possible to use that information to over come some of the
degradation?
Nope, not if the jamming is any good.
Maybe they aim to find out.
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Subject :Re: [OSM-talk] Watch out if mapping in Florida, Georgia...
From :mailto:si...@mungewell.org
Date :Fri Jan 21 11:01:06 America/Chicago 2011
GPS might not work;
http://www.theregister.co.uk/2011/01/20/unavailabe_gps_warning/
Similar NOTAMS issued for the west cost too
Also
https
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