timing Archives - Inside GNSS

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Nulls
March 24, 2020

CRPAs Protect Critical Infrastructure: How to Test

Since 2015, controlled reception pattern antennas (CRPAs) have come onto the market for civil applications where the need to counter increasing  GNSS signal jamming and spoofing has grown exponentially. Highly classified and previously available only to authorized military users, these powerful — and unfamiliar — components expand protection for critical infrastructure. All systems incorporating them should be tested for revamped vulnerabilities. This is how.

A free webinar on Wednesday, March 25 from 1:00 PM – 2:30 PM Eastern Daylight Savings Time addresses the topic “GNSS Vulnerability Testing and the Controlled Reception Pattern Antenna (CRPA).”

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By Inside GNSS
image
February 5, 2020

Details Emerge On Ligado Decision Delay

The chairman of the Federal Communications Commission (FCC) told two U.S. Senators in January that his agency could not complete a decision on Ligado Network’s license modification by the end of 2019 because of a late-in-the-year response from a key federal agency.

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By Dee Ann Divis
Interior-of-Atomichron-NC2001-showing-vertical-cesium-beam-tube-courtesy-of-Tom-Van
January 22, 2020

Time Is Relative, Position Absolute

I strode into the plenary session of the ION International Technical Meeting, primed and ready for a barrage of modernity, of out-in-front advances in precision positioning, navigation and timing. The first thing I saw was a 7-foot tall cesium beam tube, an early atomic clock from the 1950s.

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By Alan Cameron
IGM 20191021 Assured PNT MoGIS
October 22, 2019

Tech Search Emphasizes Smaller, Better IMUs, Timing Technology

IGM 20191021 Assured PNT MoGIS
C5ISR Center computer scientist Zach Kjellberg conducts testing on a position, navigation and testing system at Aberdeen Proving Ground, Md., on June 13, 2019.  Photo by Dan Lafontaine, C5ISR Center Public Affairs

The U.S. Army is reaching out to industry for the advanced inertial measurement unit (IMU) and timing technology it needs to support warfighters when GPS is unavailable or compromised.

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By Dee Ann Divis
microsemi
August 1, 2019

Microchip’s Carrier-Grade Time, Synchronization Portfolio Expansion Improves Network Deployment, Reliability and Scalability

One of the biggest 5G network deployment challenges is synchronizing higher volumes of more densely packed base stations. Another is keeping services operating through GNSS lapses due to vulnerabilities such as jamming, spoofing or loss of signal. Microchip Technology Inc., via its Microsemi subsidiary, is solving these and other challenges for networks with additions to its Precision Time Protocol (PTP) PackeTime® portfolio including the TimeProvider 4100 Release 2.0. The TimeProvider release adds 10 Gigabit Ethernet (GE) support, a Boundary Clock operation mode that lowers operational costs, and other enhancements to improve how timing flows are distributed from multiple sources to a network’s base stations and other endpoints.

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By Inside GNSS
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