Network corrected real-time is a technological approach to high precision GPS/ GNSS positioning that has been theorized about, studied, experimented with, and implemented in various academic, scientific, and commercial forms for nearly a decade. Many of the various approaches share the fruits of past research, algorithms, and technological tools; some which are in common.
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Jerry Penry is employed by Lancaster County Engineering in Lincoln, Nebraska. He has been a licensed surveyor since 1994 specializing in section corner monumentation and GPS surveying. He has presented surveying seminars with a historical aspect combined with modern day application. His special interests in this field include extensively researching historically relevant information, making the original surveyors' work come alive. His meticulous research and thorough writing sheds light on the original surveyors' tools, conditions and limitations. He is also very knowledgeable in various other historical matters including railroad history. He has written numerous surveying articles for newsletters, magazines and journals, and has authored or co-authored several books including The Chicago and North Western Cowboy Line: A History of the Longest Rail-to-Trail Project in America, and The Sunrise Serenade: A World War II Bomber Crew Story.
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