Expert Advice — Civil P(Y) Code Jul 1, 2008 By: Eric Gakstatter

The U.S. Department of Defense (DoD) proposes to discontinue supporting P(Y) codeless/semi-codeless on both GPS L1 and L2 frequencies. Every dual-frequency receiver designed in the 1980s, 1990s, and many in the early 2000s would become virtually obsolete. In the interest of disclosure, that includes my own legacy real-time kinematic (RTK) system.

Leadership Talks — Costs of New Tech Jul 1, 2008 By: Alan Cameron

Jason Kim, senior analyst at the Department of Commerce, discusses withdrawal of support, forecast for 2020, for civil use of the P(Y) signal.

Expert Advice — Old, New, Borrowed, Blue Jun 1, 2008

With weddings on many minds in the month of June, I'll follow this train of thought to describe The Institute of Navigation's Satellite Division's 21st International Technical Meeting, ION GNSS-2008, September 16-19, in Savannah, Georgia, in terms of the ceremonial tradition, "something old, something new, something borrowed, something blue."

Well, you know. We all want to change the world. The new signals in orbit augur a new age. Galileo's satellite now transmitting the interoperable MBOC, and GPS L5 broadcast capability rising soon, together will usher in applications like unto which we have not yet seen.

Leadership Talks — BlackJack Deals Winning Hand Jun 1, 2008 By: Tracy Cozzens

This month, Managing Editor Tracy Cozzens interviewed Angie Dorsey, senior member of the Engineering Staff at Jet Propulsion Laboratory in Pasadena, California. Dorsey's team plans to demonstrate decimeter-level real-time position accuracy of an aircraft using a BlackJack GPS receiver modified by JPL to receive signals from a TDRSS communications satellite, transmitting JPL's Global Differential GPS corrections.

Expert Advice — Do We Have Data? May 1, 2008 By: Rob Lorimer

It seems that every week a new and usually glowing market report appears on GPS. As a marketing professional, I naturally take a keen interest in the data that can be gleaned therein. Such reports are an essential source of information for both industry participants and investors.

Out in Front — Re-Up for Leaders May 1, 2008 By: Alan Cameron

me of little faith. I had thought, after concluding this month's 50+ Leaders to Watch article, to quietly wrap it up and put it away on the shelf. Not to be continued next year. We've had a three-year run, and it's been a good one. But how many leaders can there be, worthy of watching? You get to 150+, you feel a bit long in the tooth. But the GNSS community carries much more breadth, depth, enthusiasm, and creativity than I had grokked, even after eight years of covering nearly every aspect of it.

Expert Advice — Prepare for GIOVE-B Liftoff Apr 1, 2008 By: Jörg Hahn, Valter Alpe

A at the end of this month, on the 27th of April, Europe will add a new cornerstone to the Galileo programme and to global satellite navigation as a whole. GIOVE-B, the second Galileo In-Orbit Validation Element (GIOVE) satellite, will rise into a medium-Earth orbit aboard a Soyuz launcher from the Baikonur cosmodrome in Kazakhstan.

Leadership Talks — Anomaly Response GPS World Interview: Don Jewell with Col. Mark Crews and Staff Apr 1, 2008 By: Don Jewell

Don Jewell, contributing editor for GPS World's military and government section, interviewed Col. Mark Crews (pictured above), chief engineer at the GPS Wing, U.S. Space Missile Command, regarding GPS anomalies that occurred in October 2007 that resulted in a great deal of concern in the international user and monitoring community.