The Mobile Frontier in Field Data Collection The mobile phone business is going nuts. Makers are introducing powerful phones in groves. The sleek and stylish Motorola Razor is almost an antique now. Apple introduced their new iPhone G3 last week and Sprint is introducing the Instinct later this mont...
Read More →Is Dual-Frequency GPS — As We Know It — Becoming Obsolete? On Friday, May 16, 2008, the Office of Space Commercialization issued a Notice for Public Comment. In it, the U.S. Department of Defense (DoD) proposes to discontinue supporting P(Y) codeless/semi-codeless on both GPS L1 and L2 frequenc...
Read More →So, You’ve Been Hearing About L5 It seems in the world of high-precision GPS, there is always something new to consider. A new satellite launched … a new signal being broadcast … a new whiz-bang product introduced. In fact, engineers are designing GNSS receivers to be “compatibleR...
Read More →What’s up with Galileo Given some recent events, it’s about time to check in with you regarding Galileo, Europe’s attempt at creating a satellite navigation system similar to GPS. There’s also been some activity on the GLONASS front that is worth writing about too. In my Directions 2007 arti...
Read More →MSAS: SBAS in the Land of the Rising Sun Quietly, the Japanese Civil Aviation Bureau (JCAB) has been developing that country’s MTSAT Satellite-Based Augmentation System (MSAS) over the years. MSAS is Japan’s satellite-based augmentation system (SBAS) that is designed to enhance GPS for a...
Read More →RTK Crops Up in Precision Agriculture Take a look at the major manufacturers of multi-frequency GNSS equipment and the markets they serve. Obviously, surveying is an important market; construction is a major one too. Maybe you’ve noticed that agriculture is also making its way up the food chai...
Read More →From A to B with PND I covered this subject a while back, but I think it’s time to revisit it. Personal navigation devices (PNDs) are still selling like crazy. If you don’t have one, someone you know does. Tens of millions of these things are being sold per year. If you don’t have ...
Read More →Catching Up There has been a lot of activity on both the civilian and military sides of GPS/GNSS these past few weeks. Instead of a central theme to this newsletter, I’m going to comment on three points of interest: a DoD directive regarding position, navigation, and timing; PRN32; and some ne...
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