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(Satellites from left) GPS: In July 1995, GPS achieved full operational capability (FOC). GLONASS: In December 1995, the (then) Soviet system achieved FOC. BeiDou: On June 23, 2020, China launched the final satellite of the BeiDou-3 constellation. Galileo: The constellation has 21 usable satellites.(Credit: Satellites from public sources; background image: NASA/Chaykovsky Igor/Shutterstock.com)

Global GNSS constellations: Why 2 + 2 equals more than 4

October 18, 2021

The tremendous benefits of having four complete GNSS constellations In 2020, with the completion of China’s BeiDou-3 (aka […]


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This article is tagged with , , , , and posted in Featured Stories, From the Magazine, GNSS, Survey
The Gripen E jet fighter built by Saab. (Photo: Saab)

Maxar 3D data integrated into Swedish fighter jet for GPS-denied navigation

October 18, 2021

Saab, the Swedish defense and security company, and Maxar recently demonstrated a solution to GNSS-denied navigation by integrating […]


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This article is tagged with , , and posted in Defense, Featured Stories, Latest News
Image: GarryKillian/iStock/Getty Images Plus/Getty Images

Europe awards seven contracts for alternative PNT demos

October 13, 2021

A notice of award was posted Oct. 11 by the European Union for seven contracts to six different […]


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Preview graphic. (Image: NOAA)

NOAA, Los Alamos release new data on ionosphere for PNT

October 12, 2021

A new data source to help scientists better understand the ionosphere and its potential impact on communications and […]


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This article is tagged with , , , , , , , and posted in Featured Stories, Latest News, Space & Earth
Image: imaginima/iStock / Getty Images Plus

NextNav, Satelles collaborate on Bay Area alternative PNT testbed

October 5, 2021

Technology evaluation capabilities inaugurated in demonstration for U.S. Department of Homeland Seurity NextNav and Satelles Inc. have partnered […]


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This article is tagged with , , , , , , , , , and posted in Complementary PNT, Featured Stories, GNSS, Latest News, Timing
Photo: intst/iStock/Getty Images Plus/Getty Images

Geoscience Australia launches open-source GNSS corrections software

September 28, 2021

Geoscience Australia is developing open-source software — named Ginan — that will provide real-time corrections to positioning signals […]


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This article is tagged with , , , and posted in Featured Stories, GNSS, Latest News
Qinertia post-processing software will be used on Septentrio receivers. (Photo: SBG Systems)

Septentrio and SBG Systems partner on Qinertia post-processing

September 27, 2021

Septentrio now offers Qinertia post-processing software from SBG Systems on AsteRx-i3 D Pro+, AsteRx-i3 S Pro+ and AsteRx […]


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This article is tagged with , , , , , , , and posted in Featured Stories, Latest News, Mapping, OEM
Spirent Federal Systems’ GSS6450 RF record and playback GNSS simulator is portable, for testing automotive applications in the field. (Photo: Spirent Federal)

Simulating complexity: Testing GNSS receivers requires increasingly sophisticated simulators

September 23, 2021

Simulator vendors explain their evolution in response to changes in GNSS/PNT, comment on technical challenges they face, and […]


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This article is tagged with , , , , , , , , , , , , , and posted in Featured Stories, From the Magazine, OEM, Simulators
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