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GPS Directorate Considers Revisions to GPS Interface Specs
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)

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

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

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

U.S. Representative John Garamendi. U.S. Publishing Office photo

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.

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By Inside GNSS
Officials Delay First GNSS Authorization Request; Light-Squared Tries to Leverage Issue

Officials Delay First GNSS Authorization Request; Light-Squared Tries to Leverage Issue

The U.S. stance on satellite navigation has long supported international cooperation and a degree of interoperability. In 2010 the Obama administration even adopted a space policy that said foreign satnav services could be used “to augment and strengthen the resiliency of GPS.”

That was easier in the abstract, however, when the only fully functional GNSS was GPS. Now, with other GNSS services coming online, American officials want to think things through again.

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By Dee Ann Divis
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10th GPS IIF Satellite on Its Way to Orbit
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.

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By Inside GNSS
New PRS-Capable GNSS Receiver Platform from QinetiQ
July 14, 2015

New PRS-Capable GNSS Receiver Platform from QinetiQ

New QinetiQ PRS-capable receiver

British manufacturer QinetiQ has today (July 14, 2015) announced its progress in developing a GNSS navigation receiver that can process encrypted Galileo Public Regulated Service (PRS) signals.
 
The multi‑constellation, multi‑frequency receiver is a significant step in the company’s GNSS technology development, says QinetiQ, which expects to bring to market by 2020 end-user products for navigation, tracking, and timing based on the new receiver design. That timeline parallel’s the Galileo program’s current schedule for completing its satellite constellation.

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By Inside GNSS
GPS Directorate Gains New Leader
July 10, 2015

GPS Directorate Gains New Leader

Col. Steve Whitney now heads GPS Directorate

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.

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By Inside GNSS
2015 ASPG International Symposium: Geodesic Datum and Regional and Terrestrial Reference Frame Realizations
July 8, 2015

2015 ASPG International Symposium: Geodesic Datum and Regional and Terrestrial Reference Frame Realizations

The 2015 symposium of the Asia-Pacific Space Geodynamics (ASPG) project will focus on Geodesic Datum and Regional and Terrestrial Reference Frame Realizations. It will take place at the Russian Academy of Sciences in Moscow, Russia from August 24 through August 28.

The conference language will be English. Scientific representatives from China and Russia comprise the organizing and program committees.

Themes of particular interest to Inside GNSS readers include presentations on:

Theme 1 Space geodesy

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By Inside GNSS
55th CGSIC Meeting: Civil GPS Service Interface Committee

55th CGSIC Meeting: Civil GPS Service Interface Committee

Gregory D. Winfree

Registration is now open for the 55th meeting of the Civil GPS Service Interface Committee (CGSIC). It will take place on Monday and Tuesday, September 14 and 15 just before the opening of the ION GNSS conference at the Tampa Convention Center in Tampa, Florida.

This year, the keynote speaker will be Assistant Secretary for Research
and Technology Gregory Winfree of the U.S. Transportation Department. 

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By Inside GNSS
Canadian Army to Test NovAtel’s GAJT-AE GPS Anti-Jam Antenna Electronics

Canadian Army to Test NovAtel’s GAJT-AE GPS Anti-Jam Antenna Electronics

GAJT-AE

NovAtel, Inc., has announced that Public Works and Government Services Canada (PWGSC) has selected its GAJT-AE antenna electronics for testing on Canadian Army platforms.
 
The GAJT-AE, developed in Calgary at NovAtel’s global headquarters, is a GPS anti-jam solution designed for small and weight-constrained applications. The testing is being conducted through PWGSC’s Build in Canada Innovation Program (BCIP).
PWGSC will procure a number of GAJT-AE’s on behalf of the Department of National Defence (DND).
 

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By Inside GNSS
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