GPS World Staff

A look at how things have changed since GPS World began, with participation by CAST Navigation, Hemisphere GPS, ITT, Rakon, and Spirent Federal.

Few outside the position, navigation, and timing (PNT) community will also recall that the day before the 9/11 attacks, the U.S. government released a landmark document that described the vulnerabilities of services provided by GPS to disruption, whether by attack or inadvertent interference. The...more >>

Orbit Data and Resources on Active GNSS Satellites

Our readers respond to the cover features in the May and June issues: the two-part special the "Origins of GPS" and Richard Langley's look at "GPS by the Numbers."

After choosing the most appropriate receiver for your application from last month’s survey, you may need an antenna, too. We have collected key specifications for 336 antennas from 34 manufacturers. We have made every effort to present an accurate and comprehensive listing of antenna information;...more >>

ow in its 18th year, the annual GPS World Receiver Survey provides the longest-running, most comprehensive database of GPS equipment available in one place. With information provided by 73 manufacturers on 497 receivers, the survey assembles data on all the most important equipment features....more >>

Senators Sound off on Loran

With final satellite construction bids pending as this magazine goes to press, the Galileo program clarified a recent round of launch postponements and announced that the European Union (EU) will rescind its requirement for a special license to manufacture and sell Galileo receivers. Plus: GPS to...more >>

Photo essay

Four Galileo in-orbit validation (IOV) satellites scheduled to launch next year have already missed their first pad date.The European version of Russia’s Soyuz rocket is now scheduled to carry the four IOV satellites into orbit in two launches in November 2010 and early 2011, as announced by...more >>