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Human Engineering • July/August 2008

Ron Beard: The Measure of Time

Beard's Coordinates
Approximate Position (ITRF)
X coordinate (m): 1117249.15762
Y coordinate (m): -4848758.67469
Z coordinate (m): 3976821.16656
Latitude (N is +): +38.491471
Longitude (E is ): -077.012785
Elevation (m,ellips.): -26.010

July 1, 2008

GPS IIF Satellite Advances Through Environmental Tests

The Boeing Company has announced completion of the latest in a series of environmental tests of the first of 12 GPS IIF satellites, which confirm the mechanical integrity of the spacecraft.

Having apparently overcome technical problems that have delayed the program for several years, the program is now on track to deliver the first satellite to the U.S. Air Force this year, according to the company, with launch currently scheduled for the first half of 2009.

New Builds • June 23, 2008

SiGe Launches GPS Radio with Dual-Antenna Capability

SiGe Semiconductor, Inc. has released the SE4150L GPS radio receiver featuring dual-antenna input capability for developing GPS products.

Housed in a low profile 4x4millimeter package, the SE4150L RF integrated circuit (RFIC) features a multi-bit output, which improves sensitivity and interference resistance, according to the company. The receiver has a reported system noise figure of 1.0 dB and input third-order intercept performance (IIP3) of better than 0 dBm.

New Builds • June 23, 2008

Micro-Modular Technolgies Joins SiRF Club

A convergence of a relatively new Singapore-based company, Rockwell semiconductor engineering background, and SiRF Technology’s SiRFstarIII will produce a new family of OEM GPS receivers from Micro Modular Technologies (MMT).

By incorporating the SiRF module, the MN5010HS GPS receiver module represents a departure from MMT’s use of GPS technology from u-Nav Microelectronics (now Atheros Communications GPS business unit). Established in 2005, MMT has also joined the roster of SiRF Technology value added manufacturers (VAMs).

June 20, 2008

Air Force Tanker Controversy May Influence Galileo Competition

A U.S. Government Accountability Office (GAO) assessment that the U.S. Air Force made “significant errors” in awarding a $35 billion contract for refueling tankers to a consortium including the European Aeronautic Defense and Space Company (EADS) may affect the prospects of foreign participation in development of the Galileo system.

Ventures • June 19, 2008

Frequency Electronics Gains GPS IIIA Clock Contract

Frequency Electronics, Inc. (FEI) has received an authorization to proceed (ATP) on a new contract to provide master clocks and microwave sources for payloads on the next-generation GPS IIIA satellites. Lockheed Martin Space Systems Company leads a team that will build the IIIA spacecraft under a recently announced Air Force contract.

According to FEI, the value of the contract, when finalized, could exceed $10 million with more than half of the work to be completed over the next 18 months.

Inside GNSS • July/August 2008

JAMFEST

Last November, the 746th Test Squadron (746 TS) planned and executed the latest installment in an innovative GPS jamming exercise at White Sands Missile Range (WSMR), New Mexico. Known as JAMFEST, this program is aimed at providing low cost, realistic, GPS jamming scenarios for testing GPS-based navigation systems, as well as training personnel in unique GPS denied environments.

New Builds • June 18, 2008

New u-blox GPS Module

u-blox AG has announced the launch of a miniature GPS module designed for high volume, mass-market applications that require fast, accurate positioning at a low cost.

The NEO-5Q is a stand-alone GPS module in a 12 x 16 x 2.4–millimeter package. Its ROM-based architecture does not require an external Flash EPROM.

New Builds • June 17, 2008

New Company, New Time Code Generator

ORCA Technologies LLC, a recent start-up company — but one whose principals come with a long background in GPS timing instrumentation — has introduced the Model GS-101 GPS/IRIG-B Synchronized Time Code Generator (STCG).

Inside GNSS • May/June 2006

GNSS Album: Images and Spectral Signatures of the New GNSS Signals

Until now, civilian global satellite navigation systems (GNSS) receivers have had essentially only one signal, the GPS L1 C/A-code, reliably available for navigation. However, in the coming years, many more operational GNSS signals, systems, and frequencies will become available to civilian users.

China Satellite Navigation Conference
Signals
Trimble
Trimble
Jammer Dectector
Sensonor
Spectracom
CAST
NovAtel
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