Symmetricom, Inc. today announced two new capabilities for its SSU 2000 Synchronization Supply Unit: a GLONASS timing reference that uses signals from the satellite navigation system operated by the Russian Aerospace Defense Forces, and Synchronous Ethernet (SyncE), an ITU-T synchronization standard that delivers frequency synchronization over the Ethernet physical layer. This enhanced version of the SSU 2000 will be the... read more
Trimble is launching a high-accuracy correction service for the agriculture market. The Trimble RangePoint RTX correction service is expected to be available in March. According to Trimble, the RangePoint RTX service is an introductory, cost-effective correction service available to farmers across the contiguous U.S. as well as most of Canada, South America, Russia, and the Commonwealth of Independent States, Africa, Asia... read more
On January 31, Hemisphere GNSS Inc., a subsidiary of Beijing UniStrong Science & Technology Co. Ltd., purchased the Precision Products business and related GNSS technology and intellectual property from Hemisphere GPS Inc. for $15 million US. In a related press release, Hemisphere GPS Inc. has announced the intention to change its company name to AgJunction. As part of the transaction,... read more
LabSat 2 now has the ability to record and replay satellite signals from the rapidly expanding Chinese navigation system, BeiDou. LabSat 2 users can now record and replay any combination of two channels from the three available constellations, GPS, GLONASS, and Beidou. Existing LabSat 2 users can download the latest firmware (v2.0.0) and PC software (v2.6.14) to add this functionality... read more
A controlled radiated pattern antenna can be an effective way to protect GPS receivers against jamming. A new CRPA, composed of seven elements, works on the E5a, E5b, E6, L2, and L1 bandwidths. This article reports on radiation pattern measurements of the array in a test facility. read more
BeiDou ICD: Signal Specs Are Free At Last; First Demonstration of Galileo-Only Positioning (By Peter Steigenberger, Urs Hugentobler, and Oliver Montenbruck) BeiDou ICD: Signal Specs Are Free At Last The interface control document (ICD) describing the details of the BeiDou B1I open service signal on 1561.098 MHz was released December 27 at a news conference held in Beijing by the... read more
Economically, the System Differs Significantly from Its GNSS Cousins John W. Lavrakas In May 2007, I authored an article in GPS World looking ten years into the future and envisioning how the GNSS field would operate at that then-distant time. Reviewing my assessments, I see that I was both accurate and wide of the mark with my predictions. The prediction... read more
We have reached our tipping point, say the seven U.S. military Joint Chiefs of Staff in a January 14 letter to Senator Carl Levin, chairman of the U.S. Senate Committee on Armed Services. “We are on the brink of creating a hollow force,” they continue. By this they mean that the military of the size that they are required to... read more
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