Editorial Staff
Mailing address for the editorial staff:
North Coast Media
ATTN: GPS World
1360 East 9th Street
10th Floor
Cleveland, OH 44114
Kevin Stoltman, President and CEO
Tracy Cozzens
Editor-at-Large
tcozzens@northcoastmedia.net
Editor-at-Large Tracy Cozzens joined GPS World magazine in 2006. She also is editor of GPS World’s newsletters and the sister website Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.
Diane Sofranec
Senior Editor
dsofranec@northcoastmedia.net
216-706-3793
Diane Sofranec is an award-winning journalist whose professional writing and editing career spans more than 30 years. She has worked in print publishing and digital media, writing and editing cover stories, feature articles and columns; creating and editing electronic newsletters, blog posts and social media content; and covering industry events.
Jesse Khalil
Associate Editor
jkhalil@northcoastmedia.net
216-363-7930
Jesse started working at North Coast Media full-time in January 2023, after spending the summer and fall of 2022 as NCM’s editorial/digital media intern. Jesse served as the Digital Media Specialist for GPS World before becoming the current Associate Editor. She is a graduate of Kent State University where she earned a bachelor’s in journalism.
Contributing Editors
Sunil Bisnath
Evolution column editor
sbisnath@yorku.ca
Sunil Bisnath, Ph.D., is an associate professor in the Department of Earth and Space Science and Engineering at York University, Toronto, Canada. For over twenty years, he has been actively researching GNSS processing algorithms for a wide variety of positioning and navigation applications.
Tony Murfin
Professional OEM (original equipment manufacturer) + UAV e-newsletter
tmurfin@gpsworld.com
Tony Murfin is managing consultant for GNSS Aerospace LLC, Florida. Murfin provides business development consulting services to companies involved in GNSS products and markets, and writes for GPS World as the original equipment manufacturer (OEM) and unmanned aerial vehicle (UAV) contributing editor. Previously, Murfin worked for NovAtel Inc. in Calgary, Canada, as vice president of Business Development; for CMC Electronics in Montreal, Canada, as business development manager, product manager, software manger and software engineer; for CAE in Montreal as simulation software engineer; and for BAe in Warton, U.K., as senior avionics engineer.
Murfin has a bachelor’s degree from the University of Manchester Institute of Science and Technology in the U.K., and is a U.K. Chartered Engineer (CEng MIET).
David B. Zilkoski
Survey Scene e-newsletter
dzilkoski@gpsworld.com
David B. Zilkoski has worked in the fields of geodesy and surveying for more than 40 years. He was employed by National Geodetic Survey (NGS) from 1974 to 2009. He served as NGS director from October 2005 to January 2009. Now retired from government service, as a consultant he provides technical guidance on GNSS surveys; computes crustal movement rates using GPS and leveling data; and leads training sessions on guidelines for estimating GPS-derived heights, procedures for performing leveling network adjustments, the use of ArcGIS for analyses of adjustment data and results, and the proper procedures to follow when estimating crustal movement rates using geodetic leveling data.
GPS World Editorial Advisory Board
Miguel Amor | Hexagon Positioning Intelligence
Thibault Bonnevie | SBG Systems
Alison Brown | NAVSYS Corporation
Ismael Colomina | GeoNumerics
Bernard Gruber| Nothrop Grumman
Richard B. Langley | University of New Brunswick
Jules McNeff | Overlook Systems Technologies, Inc.
Paul McBurney | oneNav
Bradford W. Parkinson | Stanford Center for Position, Navigation and Time
Washington Yotto Ochieng | Imperial College London
Michael Swiek | GPS Alliance
Julian Thomas | Racelogic Ltd.
Rob Van Brunt | Spirent Federal Systems
Stuart Riley | Trimble
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