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Spirent Simulator Granted Security Approval by GPS Directorate

September 15, 2014By
GSS9000a-Spirent-O

Spirent Federal Systems, a U.S. provider of positioning, navigation and timing test solutions to the government and its contractors, announces that its GSS9000 RF constellation simulator has been reviewed and granted security approval by the GPS Directorate. Higher dynamic simulations with more accuracy and fidelity are enabled by 1000-Hz (1 ms) System Iteration Rate — a four-fold increase over Spirent’s current GSS8000 product — zero inter-channel bias... read more

Rockwell Tracks Galileo Signal with Secure Software Receiver

September 15, 2014By

Rockwell Collins has successfully received and tracked a Galileo satellite signal using a prototype GNSS receiver designed for secure military use. In 2013, Rockwell Collins received a $2 million contract from the Air Force Research Laboratory (AFRL) and the GPS Directorate to develop and demonstrate a Secure Software Defined Radio (S-SDR) GNSS receiver capability. By using multiple available satellite signals, improved and more... read more

Assured PNT for Our Future: PTA

September 1, 2014By
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Actions Necessary to Reduce Vulnerability and Ensure Availability By Brad Parkinson (From the 25th Anniversary GNSS History Special Supplement) Introduction About 40 years ago, we had a vision for positioning, navigation, and timing (PNT). That vision was more than successful, and became known as GPS. In some respects we have been almost too successful: PNT is frequently taken for granted.... read more

KVH Launches TACNAV 3D Inertial Nav System with Embedded GPS/GNSS

June 16, 2014By
The TACNAV 3D, by KVH Industries.

KVH Industries, Inc., has introduced TACNAV 3D, a highly accurate inertial navigation system designed for battlefield vehicles, at Eurosatory 2014, an international defense and security industry trade show in Paris, France. The TACNAV 3D system is the latest product in KVH’s TACNAV line of tactical navigation systems, and will be on display in the KVH booth (Stand J531, Hall 6)... read more

Ethertronics Unveils GPS Helix Antenna for Mission-Critical Applications

June 5, 2014By
EtherHelix GPS antenna.

Ethertronics has unveiled EtherHelix GPS, a small, stand-alone, Right Hand Circularly Polarized (RHCP) external GPS antenna. Measuring 35 mm in length, the EtherHelix GPS is 27 percent shorter than other antennas on the market with no performance trade-offs, the company said. It is designed for high-performance, mission-critical devices such as walkie-talkies, tough books, tough tablets, first responders, public safety, military applications... read more

VectorNav Launches Dual-Antenna GPS-Aided Inertial Nav System

May 13, 2014By
The VectorNav VN-300

VectorNav Technologies has introduced its VN-300 dual-antenna GPS-aided inertial navigation system (GPS/INS). A follow-on product to the VN-100 IMU/AHRS and VN-200 GPS/INS, the miniature, high-performance VN-300 enables a wider range of applications through the incorporation of GPS compassing techniques. The VN-300 can be used in a wide variety of industrial and military applications, and is well suited for size, weight,... read more

GNSS Vulnerable: What to Do?

February 18, 2014By

Too Much Sensitivity, Not Enough Robustness, Says Parkinson Brad Parkinson, the founding architect of GPS, told a UK conference that the system needs to be made more robust to ensure worldwide availability of services to users. His concerns over GPS availability relate to threats such as the loss of authorized frequency spectrum (implicitly creating licensed jammers), space weather due to... read more

Next-Generation Clock Increases Stability to 300 Picoseconds

February 11, 2014By
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The U.S. Naval Observatory’s Alternate Master Clock on Schriever Air Force Base received its second rubidium fountain clock February 4 to ensure it has the most precise time in the world. Both the USNO’s Washington D.C.-based primary and its local Alternate Master Clock facility serve as the Department of Defense’s common time reference. Additionally, the USNO monitors the GPS constellation... read more