GPS GLONASS Modules

Smartphone GPS Just Got A Whole Lot Better with Glonass

2011-09-20T12:17:00.000-07:00

Sputnik is waiting to boost your GPS reception. The American GPS satellites aren't the only location-finding birds in the sky. Silently and invisibly, the 22 satellites of Russia's GLONASS system partner our GPS, and starting next year smartphones based on Qualcomm chipsets will be able to boost their prowess with GLONASS signals.

"It's like dual-core location," said Rob Chandhok, president of Qualcomm Internet Services. "You actually have the system able to look at both satellite constellations at one time and leverage them so … you can get a more accurate fix, or a faster fix." According to Qualcomm, adding GLONASS improves GPS accuracy in "deep urban environments" by 50 percent.

Qualcomm announced its GLONASS support in May, spurred in part by a new Russian government requirement that phones sold there include GLONASS or pay additional import taxes. But this is a good thing for Americans and especially Canadians: because the satellites target Russian latitudes, they perform especially well in northern countries.

GLONASS support won't cost extra, and it won't require expensive recoding of GPS software, Chandhok said. It will, however, require GLONASS radios in devices, so it's not just a software upgrade for existing phones.

"The whole point of what we provide in our solution is that the software above [the chipset level] doesn't have to know where the data is coming from," he said.

GLONASS Takes New York
We got to see GLONASS in action, and it's pretty simple. A Qualcomm rep took a development phone out onto 28th Street in midtown Manhattan, a tough spot for GPS because of the tall buildings all around. With only GPS turned on, the phone saw two satellites, not enough for a location fix.
In testing dozens of phones, this has been my experience: generally, phones have to rely on inaccurate cell-tower triangulation when they're on side streets in New York City. Sensitive GPS chipsets can find a fix at a corner, where there's a bit more sky. Some phones make me walk several blocks down to a park.

We were impressed when the Qualcomm guy hit the vodka-fueled-turbo-boost button, and pow: 9 of 22. 14 of 22. Bang. Location locked in. Between GPS and GLONASS there are now 55 satellites to choose from, which makes it much easier to find a fix in a narrow slice of sky.

Commercial GLONASS phones are already out in Russia, and Garmin's new eTrex series of handheld GPS devices already combine GPS and GLONASS in the U.S. The eTrex units aren't phones, though.
The first combined GPS/GLONASS phones will hit the US market "in the coming year," Qualcomm said. The majority of new Qualcomm S2 and S3 processors support GLONASS, which includes the dual-core chips coming out in smartphones like the HTC EVO 3D and T-Mobile MyTouch 4G Slide. Those existing phones won't be able to use GLONASS, though, because the system requires additional radio hardware.

China and the EU are also working on their own GPS satellite constellations, but they won't be ready for a few years.

For more insights visit us at www.GlonassCentral.com
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NEW LOW COST GPS+GLONASS COMBO MODULES INTRODUCED TO A WAITING MARKET

2011-08-23T20:20:00.000-07:00

(August 23, 2011) GlonassCentral today has introduced it’s low cost GPS+ Glonass modules to the market today. These modules are based on technological breakthroughs that have contributed to driving down the price of the technology for mass applications. With 3 different key sizes, the performance is on par or better with similar Glonass chips in the market at a fraction of the cost!

“These modules at 17x22mm, 25x25mm and 35x35mm deliver variations of the form factors at a fraction of the cost, to an industry that has come to expect large and expensive modules”, commented Drew McDonald of GlonassCentral. “ We have done away with the ‘clunkiness’ for Glonass+GPS combination modules, and have the respective antennas and test boards also price below $30 per unit. The market has responded extremely positively, especially the high volume end of the market, which is very happy to have this kind of high end performance at low level pricing!”

GlonassCentral has started full production of the modules as of the beginning of August. Clients can expect expedient and immediate support and inventory access.

The product portfolio is available at the company’s website at http://www.GlonassCentral.com

GlonassCentral.com is a central portal and ODM for Glonass technology and modules. GlonassCentral.com delivers solutions for various applications, including timing & frequency applications, tracking & navigations applications, as well as synchronization applications that employ use of Glonass, GPS & Galileo technologies.

For any Media Relations inquiries please contact info@glonasscentral.com

New ChipSets and Modules to be released in Fall 2011

2011-07-27T20:36:00.000-07:00

We are pleased to announce that a new GPS/ Glonass/ Galileo chipset and module will be released by GlonassCentral.com this September 2011. Stay tuned for details.

We are very excited about this new launch, and realized that so will our customers!

Launch Delay

2010-06-04T20:02:00.000-07:00

Block IIF Launch Delayed until ThursdayMay 25, 2010
After four delays, GPS spacecraft IIF-1 is set to be launched this Thursday, May 27, from Cape Canaveral Air Force Station in Florida.

The countdown to launch of GPS IIF-1 was halted Monday night at about T-6 seconds. Computers detected a possible problem with the steering system on one of the twin solid rocket boosters.
"The launch attempt of Delta IV GPS IIF SV-1 was scrubbed Monday night, May 24," reads an Air Force announcement.

"During the final seconds of the launch countdown, an anomalous data signature with the thrust vector control system on one of the two solid rocket motors (SRMs) mounted to the Delta IV booster was detected. The thrust vector control system is used to steer the SRMs during flight. The data signature triggered an automatic abort in the launch countdown scrubbing Monday's launch attempt. Mission managers are studying the situation to determine a corrective action plan.

"The Delta IV rocket and GPS IIF SV-1 satellite are safe and secure at this time. The next launch attempt has been tentatively set for Thursday. The launch window for Thursday is 11-11:19 p.m. EDT."

The new IIFs will broadcast the operational civil L5 signal, intended for safety-of-life applications. It will be compatible with Galileo, GLONASS, and QZSS, with the goal to be interoperable as well. L5 will transmit at a higher power than current civil GPS signals, with wider bandwidth and lower frequency that may enhance indoor reception.

The first launch attempt May 20 was scrubbed when mission managers determined a piece of ground support equipment used to control one of the swing arms on the Fixed Umbilical Tower was not operating correctly and needed replacing, and launch was delayed 24 hours. Then a telemetry signal issue caused a second scrub during the countdown, and launch was to be Sunday, then was extended to Monday before this fourth delay.

GPS GLONASS Antennas

2010-04-28T21:09:00.000-07:00

A new line-up of glonass antennas is being developed for release next month. With GPS/ Glonass tracking units increasing in popularity, the need for new solution antennas is rising. Within the line-up we will introduct wifi/glonass antennas, gps/glonass/GSM antennas, and many more - that enable cutting edge solutions.

For more detail visit www.glonasscentral.com on May 15, 2010.

New Glonass / GPS module receive launching!

2010-04-17T20:54:00.001-07:00

We are excited about the prospect of launching the newest GPS/Glonass module to our product line-up. It is our newest and lowest cost dual module, the NDV-2010.

Some exciting new features, make it a perfect fit for the line-up. For full details please contact us directly to our support team.

The NDV-2010 receiver can operate either in an autonomous or in a differential navigation mode. In the latter case, the receiver can get corrections either from a base station or corrections broadcasted by SBAS satellites.

Navigation Mode:
In the autonomous mode, the receiver uses only the information from available GPS and GLONASS satellites.

In the differential mode, the receiver can receive and use corrections from a base station according to RTCM SC 104, v. 2.2, protocol. Corrections are input via dedicated serial port. The receiver processes messages 1, 2, 3, 6, 9, 31, 32, 34, 36. If differential corrections are unavailable during one minute, the receiver automatically switches to autonomous mode until the next correction is available.

When the SBAS corrections mode is set, the receiver assigns a channel for receiving SBAS satellite signal. The receiver searches for the satellites, which PRN is between 120 and 138. After getting corrections, the receiver uses them for more accurate positioning.

Visit www.glonasscentral.com for full descriptions and contacts.

Glonass Launch

2010-03-03T06:48:00.000-08:00

Another sattelite launched yesterday into space, adding to the Glonass Network. Glonass Receivers, Chipsets, Modules, and all the great tools they support are now that much better for it. See the video below for full details:

Glonass System grows by 3 more

2010-02-05T07:33:00.000-08:00

The three new GLONASS-M satellites launched on December 14 have been set operational: GLONASS 730 in orbital slot 1, was set healthy on January 30, joining 734 and 733, which were set healthy earlier in the month. This brings to 18 the number of satellites currently in service, although GLONASS 722 continues to provide a healthy signal only on its L1 frequency. At present, the constellation only suffices to provide a 24-hour regional signal over Russian territory, although satellites can and frequently are pulled in by global high-precision users to complete an RTK solution, along with GPS satellites.

Two other satellites, GLONASS 712 and 726, are currently in maintenance mode and set unhealthy. GLONASS 726 is the satellite that has a faulty signal generator and which prompted the postponement of the launch of the Block 40 satellites. Those satellites will now be launched in March. Meanwhile, GLONASS 701, launched in 2003, and 713, launched in 2005, are in the process of being decommissioned.

TV Roscosmos has released an entertaining video on Roscosmos's new program Ekstpennogo Reagirovaniya pri Avariyah, or Emergency Response in case of Accidents (ERA).
The next GLONASS launch, of the GLONASS Block 40 satellites originally to be launched last September but returned to the Reshetnev factory because of problems with the signal generator, is now scheduled for March 2. Two of the three satellites have been transported to the Baikonur launch pad.

See video here:

http://www.glonasscentral.com

GLONASS Goes Global

2010-01-22T11:39:00.000-08:00

The next decade promises drastic improvements to global navigation satellite systems. The USA is modernizing GPS, Russia is refreshing GLONASS, Europe is moving ahead with its own Galileo system, and The People’s Republic of China is expanding its Beidou-1 system from a regional navigation system to a full constellation global navigation satellite system known as Compass/BeiDou-2, which consists of thirty five satellites including geostationary satellites, MEO satellites, and geosynchronous satellites in the coming year. Extra satellites will improve performance for all applications, and especially wheresatellite signals can be obscured, such as in urban canyons, under tree canopies, or in open-cut mines.

The benefits of the expected extra satellites and their signals are increased availability, accuracy,
continuity, and reliability. The advent of hybrid GNSS constellation has made the study of compatibility and interoperability increasingly important. A number of performance analyses have been conducted on a global scale with respect to availability, reliability, accuracy, and integrity in different simulated scenarios (such as open sky and urban canyons) for each system individually as well as for all possible combinations. Since the Compass/BeiDou-2 has received increasing attention from GNSS communities, the main objective of this study is to investigate the performance of Compass/BeiDou-2 in comparison with GPS, GLONASS, and Galileo in the greater Asia region; and also to explore whether combining Compass/BeiDou-2 with another GNSS would yield performance improvements in the region.

GLOBAL POSITIONING GROWING- GLONASS GOING GLOBAL

Technology Update: GLONASS goes global

GLONASS Complimentary, NOT competitive to GPS

2010-01-17T19:48:00.000-08:00

An excellent discussion outlining the complimentary opportunities for the future of glonass.

As Glonass is improving quickly, it's availability is a key factor to success. Particularly the Northern latitudes, Glonass compliments the GPS system with greater accuracy and dependability. It's RTCM for regular road navigation is a key differentiator as well. For the full interview and details for glonass receivers and their applications visit http://www.glonasscentral.com/

Full interview with Rene Pischel, the head of the Moscow office of the European Space Agency, visit RT.com

Glonass Receiver

2010-01-07T20:17:00.000-08:00

This month's profile for our Top Pick for Glonass Receiver: NDV-735.

With GPS Glonass combinations growing in popularity in terms of embedded solutions, prices of gps receivers have been dropping.

The NDV-735 earns top marks in terms of price, quality, and consistency. As a glonass receiver it is a relatively new entrant. Features can be reviewed at http://www.glonasscentral.com/product_2.html

As a low cost glonass receiver module, it has successfully been deployed for navigation, tracking applications. It has been deployed successfully in container cargo tracking, rail car tracking, fleet management, dashboard type navigation devices, as well as in low end timing solutions.

Glonass Chip Pricing Drops

2010-01-03T10:36:00.000-08:00

For the new year, a number of technological innovations are allowing the price of Glonass/GPS chips to drop in price. Before this, the lack of competitive receiving chips was a global problem for navigation devices, supporting GLONASS to enter the market. This also was a major problem for installing GLONASS receivers into smartphones, communicators and car navigation devices.

www.glonasscentral.com has reflected the innovations and dropped it's pricing as well.

How to check status of Glonass or GPS satellites?

2009-10-28T10:52:00.000-07:00

The status of the Glonass network, as well as the GPS network is readily available via the internet. It is well maintaned and updated with great frequency and accuracy. Details are available as follows:

For Glonass network status see: http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:20:3877193860477535240::NO

For GPS network status see: http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:30:3877193860477535240::NO

That status and almanac are both listed on each page.

Glonass/GPS is better than just GPS

2009-09-18T08:19:00.000-07:00

Glonass/GPS vs GPS

The advantages of GPS/GLONASS vs GPS alone are: better accuracy due to better geometry, GLONASS unaffected by selective availability, and complementary coverage at all latitudes; better availability due to more satellites in view; and better integrity with all-in-view implementation. (AIAA)

The status of the GLONASS constellation is reported, and the (unpublished) P code navigation data message is compared to the (published) C/A code message. The architecture and functionality of the 3S navigation receivers are discussed, and performance results are presented. The R-100, a C/A code integrated GPS /GLONASS receiver, has a 12-channel capability with each GLONASS satellite requiring one channel and each GPS satellite requiring two channels.

As costs continue to lower for GPS/GLONASS receivers and modules, their propensity for adoption continues to increase.

Multi GNSS to soon overtake simple GPS

2009-09-17T11:45:00.000-07:00

Why are we talking about Multi GNSS?

Navigation and positioning technology is no longer just about GPS L1 C/A code. GPS is being modernized, the GLONASS constellation is nearly complete, new systems including QZSS, Galileo and Compass are on the way.

The Global Navigation Satellite System (GNSS) landscape has never looked so active with GNSS applications becoming more mainstream and available in a growing number of devices. A technology originally dictated by military requirements is now widely viewed as strategic to support economic growth driven by the commercial market. The result is a choice of current and planned constellations from around the world; Europe, China, Russia and USA all now recognise that GNSS is strategic and are each investing to support this growing industry.

What effect will this have on GNSS developers and integrators?

Multi-GNSS offers significant opportunities and challenges to GNSS technology, system and application developers. As navigation and positioning applications become more widespread, end user demands are increasing. Multi-GNSS offers opportunities to improve performance to meet increasing user demands. In particular, availability is potentially improved by using more than one constellation. Benefits can also include improved integrity, continuity and accuracy, depending on the situation and priorities of the application.

“In future, most receivers will be Multi-GNSS, many will also be using augmentation as a key aspect of the navigation or positioning solution. Multi-frequency GNSS will increasingly be used to support applications requiring sub-metre accuracy.”

A significant amount of research and development is currently underway by the technology and applications development community to respond to the opportunities that this expansion in operational capabilities affords.

For an updated view of current VAR solutions for Glonass and GPS combo units visit www.glonasscentral.com

Other GNSS solutions coming soon as well...stay tuned.

Glonass Network Expansion

2009-09-10T06:23:00.000-07:00

Russia Building Out GLONASS Monitoring Network, Augmentation System

With a nearly restored and modernizing GLONASS system beginning to make inroads into mass market products and services, Russia has revealed plans to build out a space-based augmentation system (SBAS) and establish its first ground monitoring stations outside the Russian territory.

In a July 30 presentation at an International Committee on GNSS (ICG) working group on interoperability, Dmitry Marareskul, head of the onboard satellite navigation sector of Information Satellite System Reshetnev Corporation in Zheleznogorsk, revealed Russia’s plans to expand its network of GLONASS monitoring and measuring stations to include sites in Australia, Cuba, and South America.

Embedded systems, applications and solutions utilizing GPS and GLONASS systems are projected to maintain their growth curve exponentially into 2011.

Glonass Module (High Sensitivity)

2009-01-12T12:23:00.000-08:00

The GPS/GLONASS Navigation RECEIVER GL-NDV68E is a high end 24-channel GPS/GLONASS receiver provides continuous all-in-view navigation satellite tracking.

There are three modes of satellite tracking:

The Mode I is system-primary and automatically selected: receiver channels track all GLONASS satellites in view, the rest channels track GPS satellites.
Other modes are available upon pilot selection:

Mode II: tracking of all GLONASS satellites in view;

Mode III: tracking of all GPS satellites in view.

The digital receiver computes position, updates ten times a second, measures position to 15 meters RMS, and measures velocity to 0.1 m/s RMS.

Main processing functions, handled by the GL-NDV68E, include:
GPS position and velocity sensing
the Receiver Autonomous Integrity Monitoring (RAIM), required for Non Precision Approach, Terminal and En Route stages of flight; the Fault Detection and Exclusion Algorithms (FDE) detect and remove erroneous measurements, providing digital interfacing. GL-NDV68E can use real-time RTCM differential correction for GLONASS and GPS. Advanced signal-processing techniques, such as Differential GNSS and Kinematics Carrier-Phase Tracking will allow GNSS systems to be certified for Category (CAT) I, II Precision Approaches in the future.

Features24-channel continuous tracking receiver. Three modes of tracking:
The Mode I is system-primary and automatically selected: tracking off all GLONASS satellites in view, free channels track GPS satellites.Other modes are available upon pilot selection:

The Mode II: tracking off all GLONASS satellites in view;

The Mode III: tracking off all GPS satellites in view. LI frequency, C/A Code GLONASS and GPS, digital processing (WAAS/EGNOS in future)Four-dimensional navigationExpanded digital interfacing capabilities.

www.glonasscentral.com

Glonass Antenna (Combo GPS-Glonass)

2009-01-09T07:04:00.000-08:00

New Product introduction

The combination Glonass/GPS antenna is a small mag mount antenna that can be used for a variety of professional and commercial applications. Hardmount version is available as well:

Dielectric Antenna
Frequency: 1575MHZ/1602MHz
Center Frequency: 1590MHz
V.S.W.R: 1.5:1
Band Width : 50 MHz Min. at -10dB
Impendence: 50 ohm
Peak Gain: 5dBic Min/1575MHz. 4dBic Min/1602~1616MHz
Gain Coverage: =- 4dBic at -90°~90°(over75% volume)
Power Handling: 1 watt
Polarization: RHCP

LNA
LNA Gain(Without cable): 32dB Typical
Noise Figure: 1.5dB

Mounting: Magnetic base
Housing: Black

Environmental
Working Temp: -40℃~+85℃
Storage Temp: -45℃~+100℃
Vibration:Sine sweep 1g(0-p)10~50~10Hz each axis
Humidity: Humidity95%~100%RH
Weatherproof: 100%Waterproof

3 More New Glonass Satellites Launched

2009-01-09T07:03:00.001-08:00

The Russian Federal Space Agency (Roscosmos) successfully launched a Proton-M rocket and three GLONASS-M satellites at 10:53 a.m. (GMT) on December 25 from the Baikonur spaceport in Kazakhstan.

The spacecraft were placed into orbital plane 1 on the GLONASS constellation, where they will occupy slots 2, 3, and 8, according to the Roscosmos Information-Analytical Center. Built by Reshetnev Informational Satellite Systems, the modernized GLONASS space vehicles will join 17 operational satellites now in orbit. Newly launched GLONASS satellites are usually brought online within a month or so.

Changes in the GLONASS program this year mean that the full constellation in the future will have 30 satellites rather than 24, with each of three orbital planes will hosting eight nominal and two backup satellites.

The current GLONASS constellation provides 95 percent coverage of Russia territory and 83 percent global coverage, according to Roscosmos and Reshtenev, with each launch improving these values.

In 2007, Reshetnev doubled its production of GLONASS satellites, accomplished in part through introduction of computer-aided acquisition and logistics support technologies and 3-D computer design systems, representatives of the public company said.

By 2010, Russia will launch the first of its GLONASS-K series satellites, with four of these being checked out on orbit over the following two years. A new unpressurized design ensuring operation of the spacecraft systems in an outer space environment is expected to improve satellite survivability while reducing the size and weight of the SVs.

The smaller, lighter design will enable Roscosmos to launch two GLONASS-K satellites at a time on Soyuz-2 rockets rather than Protons, reducing the launch costs by half, according to Roscosmos.

Glonass Central Portal

2008-12-20T21:17:00.000-08:00

Profile: GLONASS Central

We are exclusively dedicated OEM GLONASS and GPS combination hardware. We carry an select array of modules and antennas, intended for industrial use. Our hardware units are one of the smallest, most dependable and least expensive on the market today. GNSS modules that deliver the greatest coverage around the world on both systems 24/7 Client support Compact Small Size Easy to Install and Integrate Accessories available The Mode I is system-primary and automatically selected: tracking off all GLONASS satellites in view, free channels track GPS satellites. Other modes are available upon pilot selection: The Mode II: tracking off all GLONASS satellites in view; The Mode III: tracking off all GPS satellites in view. LI frequency, C/A Code GLONASS and GPS, digitalprocessing (WAAS/EGNOS in future) Four-dimensional navigation Expanded digital interfacing capabilities. GL-NDV68E is a high end 24-channel GPS/GLONASS receiver provides continuous all-in-view navigation satellite tracking..

For further details visit the site at www.glonasscentral.com

Glonass News- Vesti

2008-12-13T21:11:00.001-08:00

GLONASS GNSS-literally Российской Федерации. Русский акроним стоит для GLObal' naya NAvigatsionnaya Sputnikovaya Sistema, или глобальная система спутниковой навигации.

Для модулей GPS/Glonass для применений для вокруг мира, посещение www.glonasscentral.com

What is GPS? (A refresher)

2008-11-28T08:11:00.000-08:00

Definition- The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or setup charges to use GPS.

How it works

GPS satellites circle the earth twice a day in a very precise orbit and transmit signal information to earth. GPS receivers take this information and use triangulation to calculate the user's exact location. Essentially, the GPS receiver compares the time a signal was transmitted by a satellite with the time it was received. The time difference tells the GPS receiver how far away the satellite is. Now, with distance measurements from a few more satellites, the receiver can determine the user's position and display it on the unit's electronic map.

What is Glonass? (A refresher)

2008-11-28T08:10:00.000-08:00

Definition - GLONASS (for Globalnaya Navigatsionnay Sputnikovaya Sistema), the Russian Federation's Global Navigation Satellite System (GNSS), is the Russian version of a global positioning system. Similar to the United States' Global Positioning System (GPS), GLONASS is owned and operated by the military. GLONASS provides two separate levels of precision: deliberately degraded (for security purposes) signals for civilian users offer accuracy to within 100 meters, while its signals for military users offer accuracy of 10-20 meters.

GLONASS was designed to operate a system of 24 satellites (21 operational, and three spares for failover redundancy) orbiting at a height of 19,140 kilometers in three circular planes, at an inclination of 64.8 degrees relevant to the equatorial plane.

Glonass News

2008-11-27T06:17:00.000-08:00

The latest trio of modernized GLONASS satellites (GLONASS-M) have begun transmitting healthy navigation messages, bringing the total of operational satellites to 17 — a milestone for the Russian GNSS constellation.
The third GLONASS-M space vehicle (SV) — SVN 726 launched September 25 began transmitting a healthy navigation message on November 13, giving the rebuilt GLONASS constellation the highest number in more than a decade. GLONASS SVN 110 (724) began transmitting on October 26, and SVN 111 (725), on November 5, according to the Russian Space Agency (Roscosmos) GLONASS Information-Analytical Center.
Although GLONASS had a full constellation of 21 operational satellites in 1996, by the beginning of 1998 only 16 SVs were still transmitting as the system went without launches for three years after December 1995. The short lifespan of the first-generation satellites coupled with the economic decline that followed the collapse of the Soviet Union made the long-term prospects of the world’s second GNSS appear very doubtful.
Triple-SV launches in 1998 and 2000 could not stem the dwindling constellation and by the end of 2001 only seven spacecraft operating on orbit. A decision earlier that year by then-President Vladimir Putin began a program to rebuild and modernize GLONASS.
Another triple GLONASS launch is scheduled for December 25 this year.
From December 18, GLONASS will help pilots to land aircraft at Koltsovo airport, Ekaterinburg. According to an ITAR-TASS news agency report on the Roscosmos website, the airport will initiate a new procedure for landing aircraft equipped with GLONASS/GPS receivers — the third airport in Russia (after Domodedovo and Kurumoch) ordered by the Russian Civil Aviation Agency to fulfil this requirement

2008-11-16T19:59:00.001-08:00

November 14, 2008

GLONASS Constellation Grows to 17 as Latest Satellites Come On-line
The latest trio of modernized GLONASS satellites (GLONASS-M) have begun transmitting healthy navigation messages, bringing the total of operational satellites to 17 — a milestone for the Russian GNSS constellation.

The third GLONASS-M space vehicle (SV) — SVN 726 launched September 25 began transmitting a healthy navigation message on November 13, giving the rebuilt GLONASS constellation the highest number in more than a decade. GLONASS SVN 110 (724) began transmitting on October 26, and SVN 111 (725), on November 5, according to the Russian Space Agency (Roscosmos) GLONASS Information-Analytical Center.

Dual GPS GLONASS Modules released by www.glonasscentral.com last month support the growth of the industry as a whole, with some of the lowest cost dual glonass receivers on the market.

Двойные модули GPS GLONASS выпустили поддержкой месяца www.glonasscentral.com последней рост индустрии в целом, с некоторыми из самых недорогих двойных приемников glonass на рынке.