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Re:Show HN: Compass that points you to a photo's EXIF location by icebraining on Monday May 25, 2015 @05:47PM (#9601873)
Phones often use A-GPS, which includes an active component: http://en.m.wikipedia.org/wiki/Assisted_GPS
Re:Show HN: Compass that points you to a photo's EXIF location by michaelmior on Monday May 25, 2015 @08:22PM (#9602315)
This is true, but it seems like it should not be hard to disable AGPS in airplane mode.