GNSS

Tallysman Offers Low Current Multi-Constellation Compact GPS Antennas

April 25, 2014By
Tallysman TW4327 and TW4329 antennas.

Tallysman Wireless, Inc., is offering a family of very low power, compact, high-performance GNSS antennas for precision, commercial, and military applications. Based in Ottawa, Canada, Tallysman Wireless,  is a designer and manufacturer of high-performance GNSS, Iridium, and Globalstar antennas and associated components. The TW4327 and TW4329 are low-power GPS L1 + GLONASS G1 antennas that feature current consumption of 1.75 mA... read more

This article is tagged with , and posted in Defense News, Product Showcase, Simulators & Tools

Faulty Software Determined Cause of GLONASS Failures

April 25, 2014By

The two April failures in Russia’s GLONASS were caused by mathematical mistakes in software, according to Oleg Ostapenko, head of the Russian space agency Roscosmos. Russian newspaper Ria Novosti reported on a press conference where Ostapenko said that programmers who had designed the satellites’ new software had made several mathematical mistakes, but the problem was not major and has practically... read more

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Galileo Maritime Tests Followed Route of Viking Ships

April 24, 2014By
Frigate_in_rough_waters-O

Results are being processed from the first Galileo maritime trials outside of mainland Europe. The long-range, high-latitude testing spanned the North Sea, following the same historical sailing route that Viking dragon-ships used 1200 years ago. Ancient manuscripts record Viking navigators relied on “sunstones” to find their way — archaeologists believe these may have been polarizing crystals to pinpoint the Sun... read more

Activation of Pre-Operational CNAV Message Set for April 28

April 24, 2014By

U.S. Air Force Space Command will be implementing CNAV messages on the GPS L2C and L5 signals beginning April 28 at 14:30 UTC, to facilitate user familiarization and development of compatible user equipment. No GPS satellite outages or degradations are planned. The L2C and L5 CNAV messages should be transparent to users. A 30-day public comment period on the pre-operational CNAV... read more

This article is tagged with , , and posted in GNSS News, GPS modernization, Latest News

Braxton LADO System Supports 10th GPS Satellite Initialization

April 21, 2014By

GPS IIF-5 was launched on February 20 and turned over to the 2nd Space Operations Squadron (2 SOPS) for operations on March 5. This was the 10th successful launch and initialization using Braxton Technologies‘ Launch, Anomaly Resolution, and Disposal Operations (LADO) system. LADO has performed all the mission planning, commanding and telemetry processing necessary to prepare all GPS satellites for... read more

Spectracom Extends Local Service to the Asia-Pacific Region

April 17, 2014By

Spectracom, a business of the Orolia Group, has extended its global service capability through a partnership with EZU Technologies. Joining Spectracom  service centers in North America and Europe, EZU Technologies will support Spectracom users throughout the Asia-Pacific region from its facility in Hong Kong. Initially, services will include equipment calibration and repair services. Over time, more capability will be added... read more

This article is tagged with , , and posted in LBS/Wireless News, Simulators & Tools, Timing

Delay in Setting Recently Launched Block IIF Satellite Healthy

April 17, 2014By
A United Launch Alliance Delta IV lifts off from Space Launch Complex-37 with the Air Force's Global Positioning System (GPS) IIF-5 satellite. This launch marked the 25th Delta IV flight since the first flight in 2002.

The latest GPS Block IIF satellite, IIF-5 or SVN64 (operating as PRN30), was launched on February 21, 2014. Typically, GPS satellites are checked out and made operational within about a month following launch. SVN64 has yet to be set healthy. The delay is due to an extended navigation test being performed by the GPS master control station. A navigation upload... read more

Spirent Enables Multi-GNSS Integration in Consumer Devices with New System

April 16, 2014By
GSS6300M

Spirent Communications today introduced the GSS6300M range of multi-channel GPS and multi-GNSS simulators for receiver integrators, application developers, aftercare and production testing environments. This entry-level test system readily enables laboratory evaluation of GPS performance across different locations and routes, Spirent said. In addition to being easy-to-use even for non-GPS experts, the GSS6300M range features competitive pricing for engineering teams looking... read more

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