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August 29, 2018

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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January 1, 2018

RNSS and the ITU Radio Regulations

All applications of satellite navigation show a strong growth. They can now rely on four global systems (GPS, GLONASS, Galileo and BeiDou) and additional regional systems, sometimes aiming for future global extension (QZSS, NavIC). All these systems and their applications rely on very limited satellite orbit spectrum. This article is providing background and insights on the growing pressure on this limited resource, giving rise to proposals for “sharing” spectrum. How satellite navigation will survive and find the necessary spectrum resources to grow is reviewed in details in the following paragraphs.

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By Ingo Baumann
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September 19, 2017

IMO and the GNSS

The maritime sector drives the global economy, with ships transporting more than 80% of world trade. Ships and ports have come to rely on global navigation satellite systems (GNSS) for a huge array of applications relating to position, velocity and precise universal and local time.

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By Ingo Baumann
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April 17, 2017

Europe’s GNSS Receiver Standard Nears Approval

European Union (EU) member countries are close to adopting a standard for satellite navigation receivers.

The proposed standard covers Satellite Earth Stations and Systems (SESS) as well as GNSS receivers operating in the bands 1164 MHz to 1300 MHz and 1559 MHz to 1610 MHz. Receivers must be able to withstand interference from adjacent bands at the listed levels.

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By Dee Ann Divis
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April 1, 2017

Would you prefer to have more signals or more satellites?

Q: Would you prefer to have more signals or more satellites?

A: This is somewhat of a classic GNSS question, but before getting to the answer, let’s seek some clarity about what is being asked. First, by definition, “more” signals or “more” systems must be referenced against some baseline configuration. This is commonly assumed to be a GPS L1 C/A solution, and this assumption is also used herein.

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By Inside GNSS
Chicago-Area Magazine Editor Joins Inside GNSS
January 5, 2017

Chicago-Area Magazine Editor Joins Inside GNSS

Managing editor Stan Goff

Stan Goff, a seasoned writer and editor for a variety of professional magazines, has joined Inside GNSS as managing editor. He will be responsible for day-to-day operations and production of the print publication and insidegnss.com.

He will work with founding editor Glen Gibbons.

Goff lives and works in the Chicago area, where he spent 17 years as a senior editor and executive editor for Advanstar Communications business to business magazines. Earlier, he was a sports editor for Sun Publications.

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By Inside GNSS
GNSS Hotspots | September 2016
September 9, 2016

GNSS Hotspots | September 2016

One of 12 magnetograms recorded at Greenwich Observatory during the Great Geomagnetic Storm of 1859
1996 soccer game in the Midwest, (Rick Dikeman image)
Nouméa ground station after the flood
A pencil and a coffee cup show the size of NASA’s teeny tiny PhoneSat
Bonus Hotspot: Naro Tartaruga AUV
Pacific lamprey spawning (photo by Jeremy Monroe, Fresh Waters Illustrated)
“Return of the Bucentaurn to the Molo on Ascension Day”, by (Giovanni Antonio Canal) Canaletto
The U.S. Naval Observatory Alternate Master Clock at 2nd Space Operations Squadron, Schriever AFB in Colorado. This photo was taken in January, 2006 during the addition of a leap second. The USNO master clocks control GPS timing. They are accurate to within one second every 20 million years (Satellites are so picky! Humans, on the other hand, just want to know if we’re too late for lunch) USAF photo by A1C Jason Ridder.
Detail of Compass/ BeiDou2 system diagram
Hotspot 6: Beluga A300 600ST

1. BREXIT
Harwell Didcot, United Kingdom

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By Inside GNSS
Kevin Dennehy Joins Inside GNSS Editorial Staff
August 16, 2016

Kevin Dennehy Joins Inside GNSS Editorial Staff

Kevin Dennehy with Gen. Peter Pace, former head of the Joint Chiefs of Staff, at an Association for Public-Safety Communications Officials (APCO) conference.

Kevin Dennehy, a seasoned GNSS industry conference developer, columnist and writer and a retired Army National Guard officer, has joined Inside GNSS. As managing editor, he will be responsible for reporting online about the GNSS industry and working with Editor and Publisher Glen Gibbons on the print edition.

Contact him with company news and new product announcements at <kevin@insidegnss.com>.

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