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Thought Leadership Series
August 13, 2015

Most Railroads Will Miss Deadline for Implementing GPS-Aided Positive Train Control

Only a small percentage of railroads are expected to obtain system certification and complete implementation of GPS-aided positive train control (PTC) systems by the current deadline at the end of this year, according to a recent report to Congress by the Federal Railroad Administration (FRA).

August 12, 2015

GPS Directorate Considers Revisions to GPS Interface Specs

The U.S. Air Force Global Positioning Systems Directorate is seeking public comment on proposed revisions to selected sections of the GPS Interface Specifications.

The GPS Directorate requests public comments on the following Proposed Interface Revision Notices (PIRNs) in preparation for a public meeting of the GPS Interface Control Working Group (ICWG) planned in December.
    • PIRN-IS-705D-001 (L5 Phase Noise Plot)
    • PIRN-IS-800D-001 (L1C Phase Noise Plot)

July 31, 2015

Experts: Exclusion Zones Around GPS-Interference Problematic; LightSquared/GPS Lawsuit Settlement Talks a No-Go

In the same week conflicting court filings underscored the intractability of the fight between LightSquared and GPS receiver manufacturers.

Meanwhile, a key technical group found that aviation likely would be hampered — yet not fully protected — by exclusion zones around wireless broadband transmission towers using, as LightSquared has proposed, frequencies adjacent to GPS bands.

July 31, 2015

LightSquared Submits GPS Market Study to FCC

A “GPS market review” submitted to the Federal Communications Commission (FCC) this week diverges in methodology and results from a preliminary study of U.S. benefits of the Global Positioning System provided earlier this year to the National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board.

July 31, 2015

Key Lawmakers Move to Make DoD Responsible for eLoran, GPS Backup

A quintet of well-placed lawmakers, tired of federal dawdling, are prepared to make the Pentagon responsible for building and maintaining eLoran as a backup system for GPS. The move could come by the end of the year, possibly through language attached to a must-pass bill.

Leading the bi-partisan charge are Duncan Hunter, R-California, chairman of the House Transportation and Infrastructure Committee, and the subcommittee’s ranking member John Garamendi, D-California.

July 26, 2015

China Launches Pair of New-Generation BeiDou GNSS Satellites

China has launched two new satellites yesterday (July 25, 2015) for the nation’s Beidou Navigation Satellite System (BDS).

The satellites were launched from the Xichang Satellite Launch Center, in southern China. They're the 18th and 19th to join the satellite navigation system. The two satellites reached their target orbits three and a half hours after the launch, according to the Xinhua news agency.

July 20, 2015

Federal Cuts Expected in Civil GPS-Related Programs

In sharp contrast to the strong support given to the military’s satellite navigation programs in the next fiscal year, Congress is considering cutting every GPS-related programs supported by the Department of Transportation (DoT).

July 20, 2015

GPS Military Programs Well Supported, But FY16 Defense Bills Face Veto

With just weeks to go before Congress disperses for a month-long break lawmakers have yet to finalize either a defense funding bill or legislation authorizing military spending for fiscal year 2016. The way forward looks particularly rocky as enacting both bills will require resolving a yearslong fight over spending caps.

July 15, 2015

10th GPS IIF Satellite on Its Way to Orbit

The U.S. Air Force and its mission partners successfully launched the 10th Boeing-built GPS IIF satellite aboard a United Launch Alliance Atlas V from Cape Canaveral Air Force Stations today (July 15, 2015).

The spacecraft is destined for plane C/slot 3 of the GPS constellation

The launch almost coincided with Friday's 20th anniversary of the declaration of full operational capability (FOC) for the GPS constellation, which occurred on July 17, 1995.

Just two GPS IIF satellites remain to be launched — Atlas V rockets will be used to launch both.

July 10, 2015

GPS Directorate Gains New Leader

Colonel Steve Whitney was sworn in Wednesday (July 8, 2015) as the director of the Global Positioning Systems (GPS) Directorate, Space and Missile Systems Center, Air Force Space Command, Los Angeles Air Force Base, California.

ENAC 2015
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