A: System Categories Archives - Page 49 of 199 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

A: System Categories

Second_GPSIII_satellite
August 29, 2018

GPS IIIF Could be Delayed If Full DOD Funding Not Approved

Though the Senate approved next year’s funding for the Department of Defense (DOD) just before its Labor Day break there are still hurdles to overcome before the fiscal year runs out on September 30. For the most part further delay should not greatly impact GPS efforts — as long as stopgap funding is secured to keep DOD’s doors open — but extending the deadline will likely put the GPS IIIF program on hold.

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By Dee Ann Divis
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Ligado Fight Comes Down to Choice of Interference Standard

There was a flurry of filings July 9 just as the window closed for public comment on Ligado Networks’ proposal to repurpose satellite frequencies for a terrestrial network — a plan with the potential to interfere with GPS receivers.

The comments emerged as speculation swirled around a July 3 bid by EchoStar for Ligado spectrum supplier INMARSAT. The bid was rejected and, as of press time, EchoStar will have to wait six months before trying again.

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By Dee Ann Divis
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linda-sondergaard-384979-unsplash
August 20, 2018

The Death of Old Time? – NIST Cutting WWV

The deck of a tall ship rolled heavily beneath me as a freshening wind whistled through the rigging. A sextant in one hand and a stop watch in the other, I carefully listened. “Tock, Tock, Tock, Tock… the time is now fourteen hours, fifty-eight minutes, Coordinated Universal Time… Dong.” I clicked the stop watch in preparation for checking and winding the ship’s chronometers and measuring the height of the sun at local apparent noon.

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By Inside GNSS
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constellation
August 13, 2018

Public Interface Control Working Group and Forum for NAVSTAR GPS Set for Sept. 12

The Global Positioning Systems (GPS) Directorate will host the 2018 Public Interface Control Working Group and Open Public Forum on September 12, 2018 for the following NAVSTAR GPS public documents: IS-GPS-200 (Navigation User Interfaces), IS-GPS-705 (User Segment L5 Interfaces), IS-GPS-800 (User Segment L1C Interface), ICD-GPS-240 (NAVSTAR GPS Control Segment to User Support Community Interfaces), and ICD-GPS-870 (NAVSTAR GPS Control Segment to User Support Community Interfaces).

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By Inside GNSS
sailors_in_liferaft_with_epirb_beacon_01-04-2018_sar_02
August 10, 2018

Benefits Delivered by Galileo Already Being Felt by EU Citizens, Businesses

The Galileo constellation took another big step towards full operational capability with the successful launch last month of four satellites on-board an Ariane 5 launcher. Representatives of leading industry that have adopted Galileo then held a special press briefing for journalists from across the continent to address updates on how European citizens and businesses are already taking advantage of benefits delivered by Galileo.

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By Stan Goff
Galileo_satellites_viewed_in_smartphone_app

ESA Trainees Develop Smartphone Apps to View Galileo Satellites

The European Space Agency (ESA) recently ran an internal competition for its trainees to develop an app capable of making positioning fixes using only Galileo satellites. ESA challenged these young graduate and national trainees to develop smartphone apps to perform satellite navigation fixes solely with the use of Galileo satellites. Three teams developed apps in their spare time, presenting their results to a jury of experts from ESA, the European Global Navigation Satellite Systems Agency (GSA) and Google.

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By Inside GNSS
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