A: System Categories Archives - Page 154 of 199 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

A: System Categories

Test Results: LightSquared Would Cause Serious Interference to GPS Receivers
May 28, 2011

Test Results: LightSquared Would Cause Serious Interference to GPS Receivers

Las Vegas site for LightSquared/GPS tests

Tests of GPS receiver vulnerability to transmissions from terrestrial base stations in the proposed LightSquared 4G/LTE broadband service were scheduled to wrap up on May 27, but results as we post this message clearly indicate substantial adverse effects on GPS user equipment.

On June 1–2, the Technical Working Group (TWG) set up by the LightSquared-led working group mandated by the Federal Communications Commission (FCC) will have its first face-to-face meeting since the trials began to sort out the results.

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By Inside GNSS
Congress Moves to Protect GPS Users from LightSquared Interference
May 27, 2011

Congress Moves to Protect GPS Users from LightSquared Interference

The Federal Communications Commission (FCC) report on the level of interference between LightSquared’s proposed mobile broadband network and GPS receivers is due in a couple of weeks. Meanwhile, the fight over final approval of the system has rolled into the halls of Congress.

On Thursday (May 26) the House approved an amended 2012 Defense Authorization bill requiring the Federal Communications Commission to withhold full approval of the LightSquared 4G-LTE system and disallow operations until interference issues with military receivers are resolved.

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By Dee Ann Divis
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GPS Modernization on Agenda for June Space-Based PNT Advisory Board Meeting

GPS Modernization on Agenda for June Space-Based PNT Advisory Board Meeting

The National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board will meet in Arlington, Virginia, on Thursday, June 9 and Friday June 10. The sessions are open to the public.

Among the agenda items are GPS modernization, interoperability with other GNSS systems, and future challenges to PNT service providers and users, such as protecting the emerging role of PNT in cyber networks, including the need for backups.

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By Inside GNSS
Spirent GPS/GNSS Simulation Training Conference
May 25, 2011

Spirent GPS/GNSS Simulation Training Conference

Near Hotel Oranje (hotel photo)

Spirent engineers will lead a two day training conference on the company’s simulation equipment at Hotel Oranje in Noordwijk, Netherlands on June 21 and 22 2011.

The conference will consist of 11 training sessions followed by 4 hands-on workshops.

Topics include:

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By Inside GNSS
Septentrio Announces AsteRx-m ‘Ultra-Compact’ GPS/GLONASS RTK Receiver
May 24, 2011

Septentrio Announces AsteRx-m ‘Ultra-Compact’ GPS/GLONASS RTK Receiver

Septentrio has announced plans to release the AsteRx-m, a low-power GPS/GLONASS dual-frequency RTK receiver that is smaller than a credit card.

The new board, which will begin shipping in the third quarter of 2011, is aimed specifically at integration in handheld devices, mobile computing platforms, and other solutions requiring high accuracy combined with low power in applications where space is at a premium. The new receiver covers the functionality range from GPS-L1 only to full GPS-GLONASS L1-L2

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By Inside GNSS
Hemisphere Reports Revenue Jump, Profit for Q1 2011

Hemisphere Reports Revenue Jump, Profit for Q1 2011

Steve Koles, president & CEO, Hemisphere GPS

Hemisphere GPS, Inc., has reported revenue growth of 41 percent and a return to profitability in the first quarter of 2011 for the three months ending March 31.

For the quarter, the Calgary, Alberta, Canada–based company generated $21.2 million in total revenues, compared to US$15.1 million in the first quarter of 2010. Revenues from all market segments increased in the first quarter of this year.

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By Inside GNSS
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China Plans Another Eight Compass/BeiDou Lanches by End of 2012
May 20, 2011

China Plans Another Eight Compass/BeiDou Lanches by End of 2012

Ran Chengqi

According to a May 19 People’s Daily report, China will launch another eight Beidou navigation satellites before the end of next year.

Speaking at the second Chinese Satellite Navigation Academic Annual Meeting in Shanghai on May 18, Ran Chengqi, the director of the Chinese Satellite Navigation Administrative Office, said the overall testing of the Compass/BeiDou satellite navigation system will be finished on Oct. 10, 2011.

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By Inside GNSS
Homeland Security Steps Up to Protect GPS (But Not from LightSquared)
May 19, 2011

Homeland Security Steps Up to Protect GPS (But Not from LightSquared)

After a long series of fits and starts, the Department of Homeland Security is tackling the issue of interference to the GPS signal. The agency has launched a study to assess the risks to GPS service from a variety of sources — a study that, at least on paper, will lead to a plan to mitigate interference.

Unfortunately, the effort will not directly address the one potential problem consuming the thoughts of the GPS community — widespread receiver overload from the high-powered mobile broadband service proposed by the Virginia firm LightSquared.

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By Dee Ann Divis
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