GPS Modernization

GPS SVN49 Resumes Transmissions Using PRN24

August 13, 2012By

The GPS Block IIR-M satellite, SVN49, resumed transmissions as PRN24 at about 18:35 UTC on August 9, 2012. The signals are marked unhealthy and the satellite is not included in broadcast almanacs. SVN49 was launched on March 24, 2009 but remains out of service until an L1/L2 satellite multipath issue is resolved. read more

This article is tagged with and posted in GNSS, GNSS News, GPS Modernization

The System: British Patent Filings Threaten GPS III and Galileo Progress

July 1, 2012By

Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS and Galileo signal designs that severely disrupt modernization plans for both systems and suddenly, unexpectedly place receiver manufacturers in a highly uncertain and unfavorable situation. Some of the patents have been granted in the U.K. and in Europe, and applications are pending... read more

This article is tagged with , , , , and posted in Galileo, GNSS, GPS Modernization, The System

Lockheed Martin Completes Navigation Payload Milestone for GPS III Prototype

May 29, 2012By

The Lockheed Martin team developing the next generation Global Positioning System III satellites has completed a major integration and test event on the program’s satellite pathfinder, known as the GPS III Non-Flight Satellite Testbed (GNST). The milestone is a key indication that the GPS III team is on track to deliver the first satellite for launch availability in 2014. In... read more

The System: GPS III Endures Bad Press, IIAs an OCX Concern

May 1, 2012By

GPS III Endures Bad Press, IIAs an OCX Concern Reports in daily news media such as the Washington Post and Denver Post that “Lockheed Martin will lose its entire fee of about $70 million to defray an 18 percent cost overrun” on GPS III satellites misconstrue the facts. Don Jewell, contributing editor for GPS World, said after informal talks with... read more

NTIA Thumbs Down LightSquared; FCC Concurs

February 15, 2012By

“We conclude that LightSquared’s proposed mobile broadband network will impact GPS services and that there is no practical way to mitigate the potential interference at this time.” These words from Lawrence Strickling (right), U.S. assistant secretary for communications and information and head of the National Telecommunications and Information Administration (NTIA), appear to signal the end of LightSquared’s run. Strickling’s letter... read more

This article is tagged with , , and posted in Featured Stories, GNSS, GPS Modernization

FCC Asks If You and GPS Should Be Protected from Interference

January 30, 2012By

“We invite comment on LightSquared’s petition, and establish a pleading cycle.” Thus spake the Federal Communications Commission (FCC), groping for a way forward in the ongoing LightSquared/GPS conflict. The FCC has opened an Internet docket for public comment on the LightSquared position that GPS users and receivers “do not merit legal protection from interference” created by LightSquared. The FCC asks... read more

This article is tagged with , and posted in Featured Stories, GNSS, GPS Modernization, Latest News

The System: EGNOS Toolkits Enhance GPS Accuracy

December 1, 2011By

EGNOS Toolkits Enhance GPS Accuracy Free downloadable software Toolkits at www.egnos-portal.eu can help cell-phone and handheld receiver developers enhance location and timing applications with GPS corrrection data from the European Geostationary Navigation Overlay Service (EGNOS) satellite-based augmentation system. The Toolkits include software packages, demo applications, and supporting materials, enabling application developers, researchers, university students, and others to create, use, and... read more

This article is tagged with and posted in BeiDou/Compass, Galileo, GLONASS, GNSS, GPS Modernization, The System

Expert Advice: MSS Misinformation, and Ten Truths

December 1, 2011By

LightSquared is currently conducting a public campaign intended to persuade federal regulators to approve a nationwide broadband service that would be detrimental to users and applications that depend on GPS. The campaign relies on misinformation, revisionist history, half-truths, and clear misstatements of fact. To understand the effort to convince regulators and legislators that the experts are wrong, one must consider 10 basic truths. read more