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Anritsu Selects IFEN GNSS RF Simulator for A-GPS Testing

Anritsu Selects IFEN GNSS RF Simulator for A-GPS Testing

Anritsu Corporation, a Japanese manufacturer of test and measurement equipment, has selected IFEN’s NavX-NCS Standard GNSS simulator as its assisted-GPS (A-GPS) test system for use in developing mobile terminals.

The NavX-NCS is a GNSS RF navigation constellation simulator capable of simulataneously simulating signals from up to nine L-band frequencies in the GPS, Galileo, GLONASS (including its new G1 frequency), and QZSS systems.

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By Inside GNSS
746th Sets JAMFEST ‘09
September 9, 2009

746th Sets JAMFEST ‘09

The 746th Test Squadron (746 TS) will offer authorized GPS users another testing and training opportunity in its series of JAMFEST events on November 2–6 at White Sands Missile Range, New Mexico.
Introduced in May 2004, JAMFEST provides a realistic GPS jamming environment for testing GPS-based navigation systems.

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By Inside GNSS
Spirent Launches New Signal Generator
August 11, 2009

Spirent Launches New Signal Generator

Spirent Communications plc has launched the GSS6300 Multi-GNSS Signal Generator, intended for high-volume production test applications for devices that use commercial GPS/SBAS, GLONASS, and/or Galileo receivers.

The GSSS6300 provides a comprehensive remote control interface, designed to facilitate integration into automated test equipment (ATE) environments.

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By Inside GNSS
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GPS Signal Anomalies: Is SVN49 Just the Tip of the Iceberg?
July 18, 2009

GPS Signal Anomalies: Is SVN49 Just the Tip of the Iceberg?

Block IIR Satellite L-Band Transmitter Array of 12 Helical Antennas. Lockheed Martin photo.

After GPS Wing engineers and contractors figure out how to solve the elevation-dependent signal anomalies on the latest GPS satellite — Space Vehicle Number 49 (SVN49), they may want to take a look at another nine Block IIR and IIR-M spacecraft that European scientists say exhibit similar, but less severe, behavior.

In an article that will appear in the July/August issue of Inside GNSS, Tim Springer and Florian Dilssner, GNSS engineers in the Navigation Support Office of the European Space Operations Center (ESOC), described the effects of the anomaly as well as the U.S. Air Force’s initial attempts to solve the problem by altering the broadcast satellite orbital positions and time. A version of the article was posted June 25 on the magazine’s website.

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By Inside GNSS
Chronos Launches GPS Interference Monitor
July 10, 2009

Chronos Launches GPS Interference Monitor

Chronos Technology, of Lydbrook, Gloucstershire, United Kingdom, has introduced its CTL3500 Interference Monitor, a low-cost, handheld, battery-operated device designed to detect the presence of too much GPS power or non-GPS signals and interference broadcasting on the L1 channel.

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By Inside GNSS
GPS III Passes Preliminary Design Review
May 21, 2009

GPS III Passes Preliminary Design Review

GPS IIIA. Lockheed Martin graphic

The Lockheed Martin team developing the next-generation GPS III satellites has successfully completed a major program milestone, the preliminary design review (PDR) conducted by the U.S. Air Force’s GPS Wing.

Underlining the importance placed on meeting a 2014 first-launch schedule, nearly 150 representatives from the GPS Wing and user communities, including representatives from the Department of Defense, the Joint Chiefs of Staff, Air Force Space Command, the Department of Transportation, and the Federal Aviation Agency participated in the four-day Space Vehicle PDR at Lockheed Martin Space Systems facilities in Newtown, Pennsylvania.

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By Inside GNSS
Obama Lifts Up GPS in Speech to U.S. Scientists
April 28, 2009

Obama Lifts Up GPS in Speech to U.S. Scientists

In his April 27 speech to the National Academy of Sciences (NAS) annual meeting, President Barack Obama twice singled out the Global Positioning System as an example of the need for renewing the U.S. commitment to basic scientific research and education.

“The calculations of today’s GPS satellites are based on the equations that Einstein put to paper more than a century ago,” Obama said, having noted that “no one can predict what new applications will be born of basic research. . . .”

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By Inside GNSS
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Loctronix Gains Patent for Its Spectral Compression Positioning, Tracks CDMA, GNSS
April 26, 2009

Loctronix Gains Patent for Its Spectral Compression Positioning, Tracks CDMA, GNSS

Loctronix SCP technology

[Updated 4/26/09] On March 31, the U.S. Patent Office granted Loctronix Corporation its first patent, which will provide the foundation for its Spectral Compression Positioning (SCP) technology that enables multi-source positioning capability in a single sensor. Subsequently, the company announced that it had successfully achieved meter-level ranging performance using CDMA cellular signals.

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By Inside GNSS
More Problems with GPS IIF; IIR-(20)M Is L5’s Plan B
March 18, 2009

More Problems with GPS IIF; IIR-(20)M Is L5’s Plan B

Just when you thought it was safe to go back in the water . . .

Discovery of a power anomaly in signal generator of the first GPS Block IIF space vehicle (SV) has thrown a new wrinkle into the long-delayed follow-on generation of spacecraft.

Meanwhile, it’s all systems go (and all fingers crossed) for launch of a modernized Block IIR satellite IIR-20(M) with the demonstration L5 navigation payload designed to secure priority GPS access to the frequency.

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By Inside GNSS
Rx Networks Launches SUPL Data Service, Announces Infineon Chipset Role
February 17, 2009

Rx Networks Launches SUPL Data Service, Announces Infineon Chipset Role

Rx Networks, Inc., a Vancouver, B.C., Canada–based provider of assisted-GPS (AGPS) technology has announced the availability of its GPStream Secure User Plane 1.0 Light Edition (SUPL 1.0 LE) data service. The company has also announced that Infineon Technologies AG uses an optimized version of the company’s GPStream Mobile Suite to work with Infineon’s next-generation XPOSYS GPS chipset technology.

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By Glen Gibbons
CSR-SiRF Merger Pairs Struggling Bluetooth and GPS Powerhouses - and Shows Handset Platform Dominance

CSR-SiRF Merger Pairs Struggling Bluetooth and GPS Powerhouses – and Shows Handset Platform Dominance

CSR image

Merger plans recently announced by CSR (Cambridge Silicon Radio) plc and SiRF Technology Inc. connote more than the evolving fortunes and common future of a Cambridge, UK–based Bluetooth and WiFi provider and a San Jose, California GPS manufacturer.

It reaffirms the emergence of mobile phone handsets as a dominant location platform, the convergence of wireless communications and positioning at the chip level, and the trend toward absorption by semiconductor manufacturers of independent GPS technology providers who offer only single-frequency solutions.

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By Glen Gibbons
Trimble Rolls Out New Ag Products
January 25, 2009

Trimble Rolls Out New Ag Products

EZ-Guide 500 VRA

Trimble has introduced a series of new products targeting the agriculture market where the company has been doing particularly well in recent years. These include an integrated display for manual or automated machine operation, a variable rate application (VRA) option for the company’s lightbar guidance system, and two new differential GPS receivers.

Trimble has introduced a series of new products targeting the agriculture market where the company has been doing particularly well in recent years. These include an integrated display for manual or automated machine operation, a variable rate application (VRA) option for the company’s lightbar guidance system, and two new differential GPS receivers.

The AgGPS FmX integrated display can operate as either a stand-alone manual guidance system or as part of an automated guidance, implement control or steering system. The FmX touch screen display is 12.1 inches, approximately 35 percent larger than the industry standard 10.4-inch screen, yet the display requires no more space in the cab than its predecessor, the AgGPS FieldManager, according to the company.

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By Glen Gibbons
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