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Forum: RIBs & ribbing

22 May 2009, 15:34

Replies: 23

GPS Failures due soon?

Views: 3,492

Posted By SeaSkills

Civilian use is still limited to the Coarse...

Civilian use is still limited to the Coarse Aquisition signal, even though Selective Availability was switched off a long time ago (Differential GPS made it redundant, anyway). The military do still...

Forum: RIBs & ribbing

22 May 2009, 10:58

Replies: 23

GPS Failures due soon?

Views: 3,492

Posted By SeaSkills

I don't know, so I spoke to a pal who's a pilot,...

I don't know, so I spoke to a pal who's a pilot, and his answer was that they don't rely too much on altitude readings unless it becomes a sensitive issue - ie they're getting near the ground! On...

Forum: RIBs & ribbing

21 May 2009, 20:37

Replies: 23

GPS Failures due soon?

Views: 3,492

Posted By SeaSkills

The problem with altitude is that it works to an...

The problem with altitude is that it works to an average around the world. The GPS model makes assumptions about the shape of the earth and WGS84 has defined that shape to be an ellipsoid, with a...

Forum: RIBs & ribbing

21 May 2009, 18:04

Replies: 23

GPS Failures due soon?

Views: 3,492

Posted By SeaSkills

Will GPS stop working next year?

Probably not, but if you listen to some stories it's all about to come to an end. If you fancy a longish and not particularly interesting read, this is the study that has the detail ...

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