The System

The System: Second Report by LightSquared/GPS Technical Working Group Maps Terrain, Does Not Yet Explore

May 1, 2011By

Plus: GLONASS CDMA Tracked, Third Beidou-2 Launched The second report from non‐governmental members of the LightSquared/GPS Technical Working Group (TWG) was filed with the Federal Communications Commission (FCC) on April 15. For those anxious to see actual results of interference/desensitization of GPS receivers by the proposed LightSquared terrestrial signal — or, conversely, absence of said results — the report does not contain... read more

This article is tagged with , and posted in GNSS, The System

The System: First GPS Intereference Report Sent to FCC

April 1, 2011By

First Overload Interference/Desensitization to GPS Receivers, Systems, and Networks Report to FCC; Plus Save Our GPS Coalition Forms; WAAS Official Again; EGNOS SOL Operational; Russian SBAS Satellite Passes Transponder Tests read more

This article is tagged with , , , and posted in Augmentation & Assistance, The System

The System: Test Data Predicts Disastrous GPS Jamming by FCC-Authorized Broadcaster

March 1, 2011By

Representatives of the GPS industry presented to members of the Federal Communications Commission (FCC) laboratory evidence of interference with the GPS signal by a proposed new broadcaster on January 19 of this year. The meeting and subsequent filing did not dissuade FCC International Bureau Chief Mindel De La Torre from authorizing Lightquared to proceed with ancillary terrestrial component operations, installing... read more

This article is tagged with , and posted in Galileo, GNSS, GPS Modernization, The System

GLONASS K-1 Launch Delayed Twice, Rescheduled for Tomorrow

February 25, 2011By

  GLONASS-K is moved to the launchpad. News courtesy of CANSPACE listserv. According to a Roscosmos report, the state commission governing rocket launches will launch GLONASS-K1 on February 26 at 03:06 UTC. The launch of GLONASS-K1 has been pushed back for “technical reasons.” The original schedule called for a February 24 launch. Quoting the commander of the Russian Space Forces,... read more

This article is tagged with and posted in GLONASS, GNSS, The System

The System: FCC Asked to Authorize Potential Interferer

February 1, 2011By

In November, December, and January, a regulatory drama with high potential impact on the GPS signal and domestic U.S. GPS users began unfolding before the Federal Communications Commission (FCC). As this magazine goes to press on January 24, the issue remains far from resolved, although hearings and far-reaching decisions may have transpired by mid-February. A company called LightSquared applied to... read more

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The System: GLONASS Blows Itself off Course

January 1, 2011By

Surplus fuel loaded in error onboard the launch rocket caused loss of three new GLONASS satellites on December 5. The mishap burdened the DM-3 booster rocket with an excess of 1.5 to 2 tons of fuel, causing it to deviate from its course after blast-off and dive into the Pacific Ocean instead of reaching orbit altitude — dashing hopes for an imminent,... read more

This article is tagged with and posted in Aviation & Space, Galileo, GLONASS, GNSS, Government, The System

The System: QZSS Puts L1C on the Air

December 1, 2010By

QZSS Puts L1C on the Air JAVAD Receivers Track the First Truly Interoperable Signal JAVAD GNSS engineers in Moscow have released plots of the C/A, L2C, L5, SAIF, and the new L1C signals broadcast by Japan’s QZSS Michibiki, the first satellite to transmit L1C. The company stated that all of its current GNSS receivers can track QZSS signals with a... read more

This article is tagged with , , and posted in BeiDou/Compass, Galileo, GLONASS, GNSS, The System

The System: Galileo PRS Delivery in Question

November 1, 2010By

Once envisioned to orbit 30 satellites, Galileo’s constellation has over time been reduced to a planned, though still not space-borne, four initial satellites plus 14 operational satellites for a total of 18. The European Space Agency (ESA), under direction of the European Commission (EC), confirmed at the October 19–21 European Navigation Conference (ENC) in Germany that it plans to declare... read more

This article is tagged with and posted in BeiDou/Compass, Galileo, GNSS, The System