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Memorial Service for Prof. David Last

Memorial Service for Prof. David Last

A public memorial service for Professor David Last will take place at the Pritchard Jones Hall, College Rd, Bangor LL57 2AP at 13:00 on 23rd January 2020. Full details will be posted later here https://www.johnhughesandson.co.uk/en/obituary In Lieu of flowers the...

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Understanding GPS Data Spoofing – No Jitter

Understanding GPS Data Spoofing – No Jitter

Blog Editor's Note: This article is a good overview of spoofing and its potential impacts. The interviewer asks a very good question about incentives for spoofing GPS. While the article provides a general answer, it would be interesting to sit down someday with a...

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Time Distribution Papers Sought – URSI in Rome August 2020

Time Distribution Papers Sought – URSI in Rome August 2020

Time and navigation are inextricably intertwined. In fact, precise time is essential to most modern navigation and positioning systems. A number of our readers and members focus almost exclusively on the "T" in "PNT". So we thought we would pass along the below note...

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How to fight jamming – GPS World Editorial Advisory Board

How to fight jamming – GPS World Editorial Advisory Board

Blog Editor's Note: Two important perspectives from well-regarded PNT community figures. It is interesting to note that the question posed was: "What is or would be the best POLICY response from Congress and/or executive branch agencies to the growing threats to GPS...

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Air Force to Try GPS/ PNT Sat at GEO

Air Force to Try GPS/ PNT Sat at GEO

The Air Force seems to be on track to experiment with PNT satellites in geostationary orbit. The idea for Navigation Technology Satellite 3 (NTS-3) has been around for a while and notionally scheduled for launch in 2023. Recently the Air Force announced it would be...

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Defense Dept Opposes Ligado – Multiple Reports

Defense Dept Opposes Ligado – Multiple Reports

Blog Editor's Note: Several reports on this in the media. For those interested in this issue, we recommend all three articles as each provides some information not available in the others. Several interesting things to note overall. A pending financial deal in the UK...

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Ligado – Again.  RNT Foundation Files to FCC Docket

Ligado – Again. RNT Foundation Files to FCC Docket

Blog Editor's Note: Recent press reports about the FCC preparing to act on the Ligado proposal caused us to start thinking about this again. The result was us filing this letter to the docket.   14 November 2019 Re: Ex parte presentation in IB Docket Nos. 11-109...

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