Nationwide Differential GPS (NDGPS) heads toward the budget chop block. Its 2007 allocation has been scaled back to zero. As in aught, nought, zot. NDGPS, also referred to as the Coast Guard differe...
Read More →I have something to say about our mainstay — GPS — and its troubles of late. So many people in the survey/mapping community have asked me when this problem is going to be resolved. The problem is ...
Read More →Flex Power See “Potential Problems for Users of Modernized GPS Signals in Mixed-Mode Operations” by Eric Gakstatter in The System news section, page 15, June issue. Dear Mr. Gakstatter, T...
Read More →PRN 17, the first IIR-M satellite launched in September 2005, began broadcasting the second GPS civil signal, L2C, in December 2005. PRN 17 is the first in the new generation of GPS satellites with a ...
Read More →When the new flex power feature aboard PRN 17, the first IIR-M GPS satellite, was enabled for testing (for a very short period of time), a problem was observed by certain GPS users. PRN 17, the first ...
Read More →Innovation: GNSS Radio: A System Analysis and Algorithm Development Research Tool for PCs (PDF) By J.K. Ray, S.M. Deshpande, R.A. Nayak, and M.E. Cannon Published: May 2006 GPS World In this month’s...
Read More →Welcome to the second edition of GPS World’s Survey & Construction e-newsletter. My name is Eric Gakstatter (egakstatter@questex.com). I’ve spent the past 16 years in the GPS survey/mapping in...
Read More →The FAA’s announcement (reported in March GPS World) that WAAS in the northeastern United States and eastern Canada may be significantly inhibited by relocation of WAAS-broadcasting satel...
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