Artist's impression of the CACI/York Space DemoSat scheduled to launch in January 2023. (Credit: CACI)

CACI to demonstrate time-based navigation to support GPS

May 17, 2022

CACI International, a U.S. defense contractor, plans to demonstrate a supporting navigation technology for military use as part […]

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This article is tagged with alternative PNT, defense contractors, space domain, space-based PNT, two-way time transfer and posted in Defense, Latest News, Space & Earth

Worry about PNT and national security, not just eLoran

March 8, 2022

Letter to the Editor February 2022 In November’s issue of GPS World, Editor-in-Chief Matteo Luccio opined that […]

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This article is tagged with 5G, Dana Goward, eLoran, letters, PNT Advisory Board, PNT security, space-based PNT and posted in From the Magazine, Opinions

Image: niarchos/DigitalVision Vectors/Getty Images

Federal policy aimed at GPS interference, critical infrastructure

March 7, 2021

In its closing days, the Trump administration issued several new policy documents affecting positioning, navigation and timing (PNT) […]

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This article is tagged with alternative PNT, Department of Defense, Department of Homeland Security, Department of Transportation, GPS backup technology demonstration, interference, interference detection, PNT, space-based PNT, space-based policy, Trump administration and posted in Featured Stories, GNSS, Latest News

An artist's concept of a GPS IIR-M satellite in orbit (courtesy of Lockheed Martin).

In defense of PNT: Multi-GNSS to the rescue

May 11, 2016

For more than 41 years, many of us who were there in the beginning have been discussing the attributes, […]

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This article is tagged with Defense PNT, Don Jewell, ground-based augmentation system, Locata, Loran, PNT, space-based PNT and posted in Defense, Opinions