A: System Categories

July 29, 2009

U.S. Congress Working on 2010 Appropriations for Loran-C and eLoran as GPS Backup

Enhanced Loran (eLoran) has survived through multiple generations of official ambivalence about the proposed backup for the U.S. Global Positioning System. Currently, the program is in (almost) on-again status.

The latest chapter began with President Obama’s Fiscal Year 2010 (FY10) budget proposal, which called for termination of Loran in the coming year. At a May 7 press conference, the president described Loran as a system that’s been eclipsed by the rise of GPS.

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By Inside GNSS
July 23, 2009

U.S. House of Representatives Trims $97 Million from OCX Budget, Cites Contract Delays

(Updated 11 a.m. (PDT), includes additional details from the GPS Wing)

A $97.4-million reduction in the GPS program made by the U.S. House of Representatives would affect the modernization program for the operational control segment (OCX), not the GPS III satellite budget as reported earlier.

In adopting the action of its appropriations committee, the full House approved H.R. 3326, the Department of Defense (DoD) Fiscal Year 2010 (FY10) budget, on July 30. The bill was referred to the Senate Appropriations Committee on August 3. In its report on the bill, the House committee said it made the cuts because of contract delays in the OCX program.

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By Inside GNSS
July 21, 2009

ISRO Extends Raytheon Contract for GAGAN GPS Augmentation System

The Indian Space Research Organization (ISRO) has awarded a new $82 million contract to Raytheon Company to modernize the Indian air navigation system.

Raytheon will build the ground stations for the GPS-Aided Geosynchronous Augmented Navigation System (GAGAN), and the Indian Space Research Organization will provide the space segment and additional ground equipment. GAGAN will provide satellite-based navigation for civil aviation over Indian airspace and adjoining areas in south and east Asia.

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By Inside GNSS
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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
July 17, 2009

U.S. Access to Europe’s Galileo Program Markets Subject of Trade Rep Report

Comments submitted to the Office of the U.S. Trade Representative (USTR) suggest that the Galileo program is finally nearing a decision on commercial use of specifications for its Open Service (OS), but U.S. officials remain concerned that this nation’s equipment manufacturers not be placed at a competitive disadvantage. Meanwhile, Galileo simulators appear to finally be reaching receiver manufacturers, despite the absence of official approval.

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By Inside GNSS
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July 14, 2009

GPS Networking, Inc., moves to New Facility

GPS Networking, Inc., a provider of GPS/GNSS signal distribution equipment and accessories since 1999, is moving effective July 15.

The company is remaining in Pueblo, Colorado, and moving into a larger facility at 3915A Outlook Blvd, Pueblo CO 81008.

GPS Networking’s phone number (1-800-463-3063/1-719-595-9880), fax number (719-595-9890) and website address <www.gpsnetworking.com> will also remain the same.

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By Inside GNSS
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 Networking Offers Variable Gain Amplifier with Push Button Control

GPS Networking, of Pueblo, Colorado, has launched the VGLCDLA30RPDC, a variable gain GPS in-line amplifier with LCD display and push button control.

Featuring a range of 0–30 dB, the VGLCDLA30RPDC’s push button control can increase or decrease gain in increments of 1 dB, enabling operators to make precise adjustments quickly and view the output power at any given time for more efficient testing.

The unit operates on 110VAC or 220 VAC transformer (wall mount) and 240 VAC (United Kingdom). Connector options include types N, SMA, TNC, and BNC.

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By Inside GNSS
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