LightSquared GPS Interference Controversy: Senate Investigation Won’t End with FCC Decision http://www.insidegnss.com/node/2936 Sen. Chuck Grassley, R-Iowa, has been looking into whether the FCC fast-tracked its review of the Virginia firm’s proposal to build a 4G broadband network with signals that would be, tests now show, powerful enough to interfere dramatically with GPS receivers. ...

NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2012003 NANU TYPE: GENERAL *** GENERAL MESSAGE TO ALL GPS USERS *** On approximately 01 FEB 2012 SVN49 will resume transmitting L-band utilizing PRN24. At L-band activation, SVN49/PRN24 will be unusable until further notice. Additionally, no broadcast almanacs will include SVN49/PRN24. Future NANUs will inform users of any changes to the above-stated...

I recently had my sat nav repaired after I dropped it and smashed the screen and it something inside as it was rattling, I contacted this company http://www.thesatnav.co.uk/ who were really good, I got to speak to an engineer and could explain what I had done, he arranged to collect my sat nav and repaired it and returned to me in just over a week. I was really happy and was much cheaper than I...

On 1/27/12 12:40 AM, peter kalvin wrote: I have solutions manuals to all problems and exercises in these textbooks. To get one in an electronic format contact me at: kalvinmanual(at)gmail(dot)com and let me know its title, author and edition. Please this service is NOT free. Free Alternative: http://www.cramster.com/

NavSAS Group Acquires, Tracks Second Galileo IOV Satellite http://www.gpsworld.com/GNSS%20System/Galileo/news/navsas-group-acquires-tracks-second-galileo-iov-satellite-12517 January 17, 2012 By: Fabio Dovis On January 17, the E1 signal of the Galileo Flight Model 2 satellite (FM2, also known as GSAT0102) was successfully acquired and tracked by the researchers of the Navigation,...

http://www.afspc.af.mil/news1/story.asp?id=123286589 --- CHAS

QUOTE Grassley said yesterday that Falcone, whose Harbinger Capital Partners hedge fund is LightSquared's main backer, and a telecommunications executive implied that they wanted the lawmaker to “pull punches” in an investigation. “I won't be part of that,” Grassley, an Iowa Republican, said in a letter to Falcone that sought details of Falcone's contacts with the...

I have a Garmin Etrex H. The molded plastic strap that wraps round the unit, and transmits finger pressure to the recessed buttons, has torn. Does anyone know where I can get a replacement strap? Or, if such are not available, can anyone recommend a suitable adhesive. (I've tried Gloy Gum, but I'm not convinced that this is going to hold. -- Stewart Robert Hinsley

http://www.washingtonpost.com/national/health-science/biggest-solar-storm-since-2005-underway-will-peak-tuesday/2012/01/23/gIQAivH6KQ_story.html?hpid=z2 -- "We demand rigidly defined areas of doubt and uncertainty." Douglas Adams - (Could have been a GPS engineer).

Unanimous. However, there is a split on grounds. “We hold that the government’s installation of a G.P.S. device on a target’s vehicle, and its use of that device to monitor the vehicle’s movements, constitutes a ‘search,’ ” Justice Antonin Scalia wrote for the majority. Chief Justice John G. Roberts Jr. and Justices Anthony M. Kennedy, Clarence Thomas and Sonia Sotomayor...

http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm http://celestrak.com/GPS/NANU/2012/ http://celestrak.com/GPS/status/2012/ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2012002 SUBJ: SVN33 (PRN03) FORECAST OUTAGE SUMMARY JDAY 023/1524 - JDAY 023/1628 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2012002 NANU DTG: 231632Z JAN 2012

Hi All, Does anyone have a driver for the Roadcom rc410 sat nav? www.66.com/rac the driver supplied does not work with windows 7 Thanks

A satellite in a Sun synchronous orbit will see the polar coordinates turn through 360 degrees beneath the orbiting satellite coincident with the orbital period of the planet.This reflects the orbital behavior of a planet as it circles the central Sun and is left out entirely due to the adherence to right ascension reasoning which tries to account for daily and orbital motions via the equatorial...

Here's the track leading the ship into the rocks: http://www.telegraph.co.uk/news/worldnews/europe/italy/9028060/Cruise-disaster-Costa-Concordia-final-route-plotted-from-GPS-navigation-data.html --- CHAS

http://www.nytimes.com/2012/01/20/science/the-leap-seconds-reprieve.html?ref=science "Opponents of leap seconds, led by the United States, say the sporadic addition of these timekeeping hiccups is a potential nightmare for computer networks that depend on precise time to coordinate communications." Which is a pretty silly statement as leap seconds have...

http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm http://celestrak.com/GPS/NANU/2012/ http://celestrak.com/GPS/status/2012/ NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2012001 SUBJ: SVN33 (PRN3) FORECAST OUTAGE JDAY 023/1500 - JDAY 024/0300 1. NANU TYPE: FCSTMX NANU NUMBER: 2012001 NANU DTG: 181730Z JAN 2012

The GPS Business News site ( http://www.gpsbusinessnews.com/ ) refers to this market study: http://www.berginsight.com/ShowReport.aspx?m_m=3&Id=133 Mobile Navigation Services and Devices http://www.berginsight.com/ReportPDF/Summary/bi-mns5-sum.pdf "At the end of 2011, there were 340 million navigation systems in use

U.S. Air Force Awards Contract to Lockheed Martin for GPS III Launch, Checkout http://www.gpsworld.com/GNSS%20System/GPS%20Modernization/news/us-air-force-awards-contract-lockheed-martin-gps-iii-launch-check The U.S. Air Force has awarded Lockheed Martin a $21.5 million contract to provide a Launch and Checkout Capability (LCC) to command and control all GPS III satellites from launch...

Second Galileo IOV Satellite Transmitting Signals http://www.gpsworld.com/GNSS%20System/Galileo/news/second-galileo-iov-satellite-transmitting-signals-12509 On Monday, 16 January, at about 02:18 UTC, the second of the two Galileo In-Orbit Validation (IOV) satellites, FM2 (Flight Model 2) also known as GSAT0102, started transmitting navigation signals on the L1/E1 frequency using the E12...

http://www.gpsworld.com/GNSS%20System/news/defense-and-transportation-depsecs-tell-fcc-nix-lightsquared-12508 Ashton Carter, U.S. deputy secretary for defense, and John Porcari, deputy secretary for transportation, have written an official letter to the assistant secretary for commerce, stating that "there appear to be no practical solutions or mitigations that would permit the LightSquared...

LightSquared seeks probe of GPS advisory board member http://www.computerworld.com/s/article/9223412/LightSquared_seeks_probe_of_GPS_advisory_board_member On Thursday, the mobile broadband startup petitioned the Inspector General of NASA to investigate Bradford Parkinson, the vice chairman of a board that advises the government on GPS. Parkinson should be removed from discussions about...

Where Am I? http://www.gpsworld.com/Defense/where-am-i-12499 January 12, 2012 By: Don Jewell Defense PNT Newsletter, January 2012 I have long advocated that our warfighters and first responders deserve the best equipment available so they can answer the basic question, "Where Am I?" quickly and with complete certainty. Or, "Where am I now

FROM THE NEWS Crowded Heavens Pose Challenge for China's Answer to GPS Reuters 11 January 2012 Beijing in late December launched civilian trials of the fledgling, 10-satellite system that Chinese officials predict will be the catalyst for a domestic navigation industry worth more than $60 billion by the end of this decade.

Yep, you read that right: BUY Belfort Instruments DigiWx-****... Have a PILE OF **** guaranteed! Have you heard about the Meadow Lake Airport AWOS Fiasco? Quoting, http://meadowlake-airport.com/AWOS.htm reads in short: "Executive Conclusion: Of the four candidate AWOS manufacturers, only two meet the threshold and objective system performance levels. These are systems provided by All...

http://www.dft.gov.uk/news/press-releases/dft-news-20120106 "Norman Baker calls Satnav Summit to help motorists find way 6 January 2012 Norman Baker, Local Transport Minister, will host the Government's first 'Satnav Summit' to thrash out solutions to end the misery caused when lorry and car drivers follow out of date directions from their satnavs.

Using GPS recordings and ground sightings, I've completed a map of the nearby woods trail system. http://g.co/maps/srmyw About 90% of the trails are mapped. Major trail accuracy is better than 5 metres (my guestimation) based on 10 or more passes averaged in plotting and minor trails better than 20 metres (probably closer to 10). Though in the deeper ravines, the variance was quite high...

Expert Advice: Give Us This Day Our Daily Bread http://www.gpsworld.com/GNSS%20System/expert-advice-give-us-day-our-daily-bread-12464 Across transportation, agriculture, industry, commerce, and finance, GPS has replaced earlier technologies, opened up innovative applications, and led to new ways of doing old things. GPS now plays a key role in the critical infrastructures of all...

I fired up my eTrex legend the other day, turned on WAAS, and it eventually picked up satellite #46 (PRN-133). Everything was working great. The receiver was receiving corrections and locked onto ranging on #46 (solid bar). When I used it today, I saw #46 disappear and #51 (PRN-138) took over in its place. It locked onto it and was receiving corrections, but because the satellite is...

Seems that we have a "test" version of the Compass-BeidouII ICD I gave a quick look at the 11 pages: Some intro (overview of the system) and some signal specification(signal structure, radio freq characteristics and ranging codes) Not much to read :) No info about the navigation message for example.

"" RESTON, Va., Dec. 20, 2011 /PRNewswire/ -- LightSquared today asked the Federal Communications Commission (FCC) to confirm LightSquared's right to use the spectrum licensed to the company by the federal government. In addition, the company asked the FCC to confirm that commercial GPS manufacturers have no right to interference protection from LightSquared's network since they are not...

Tests Show LightSquared Interference with 75 Percent of GPS Receivers http://www.gpsworld.com/gnss-system/news/tests-show-lightsquared-interference-with-75-percent-gps-receivers-12418 The report concludes: 1. LightSquared signals caused harmul interference to a majority of GPS receivers tested. No additional testing is required to confirm harmful interference exists. 2. Immediate...

Congratulations to the 2nd SOPS in reaching the current maximum number of healthy GPS birds, 31. If they only could have kept PRN30 a bit more half way (farther away from its pair), maximum PDOPs would be at least 1 meter lower. Marcelo

Iran claims that it captured the RQ-170 Sentinel stealth drone by jamming the comms links and spoofing the GPS. http://www.csmonitor.com/World/Middle-East/2011/1215/Exclusive-Iran-hijacked-US-drone-says-Iranian-engineer Is P-code not as spoof-proof as first thought? Did they pull off a playback attack where the real signals (perhaps just the modulation, not the RF) is recorded and played...

GPS III Satellite Testbed Delivered to Final Assembly http://www.gpsworld.com/gnss-system/news/gps-iii-satellite-testbed-delivered-final-assembly-12414 Lockheed Martin has delivered the the GPS III Non-Flight Satellite Testbed (GNST), the program’s pathfinder spacecraft, to the its Denver-area facility. The pathfinder will now undergo final assembly, integration, and test activities. See:

Google just announced a crowd sourced map making tool. Anyone can help add features (roads, businesses etc) to Google Maps. Instead of the normal slow cycle that most companies have for edits that people send in, this has the potential to be nearly realtime. There appears to be some review mechanism where edits are supervised, but even that appears to be done on a crowd sourced basis. This...

http://www.supercircuits.com/GPS-Tracking-Devices/GPSTKM1-KIT2 "Includes a sensitive GPS receiver which makes use of RF reflections common to the undercarriages and interiors of vehicles" I just don't see the bottom of a car having surfaces reflecting upwards.

Almost 2 months after GPS IIF-2 was set healthy, its ephemeris/clock performance is still way behind IIF-1 (PRN25). PRN1 performs (around 70cm RMS URE) in the worse 10 GPS satellites PRN25 performs (around 40cm RMS URE) in the top 5 GPS satellites PRN2 performs around 25cm RMS URE, PRN23 performs around 30cm RMS URE. Both are IIR birds. Now, its clear PRN1 performance is firmly within the...

I ground truth'd 3 GPS' today: 1. AMOD photo tracker (20 channel Sirf III with WAAS) 2. Garmin etrex 30 ( ? channel, GPS/WAAS + GLONASS ). GPS was "D" at time of check. 3. iPhone 4. etrex 30: 6.58 m Photo tracker: 4.85 m iphone 4: 3.53 m

Beidou Launch Completes *Regional* Nav System http://www.gpsworld.com/gnss-system/news/beidou-launch-completes-regional-nav-system-12375 December 6, 2011 "The Beidou-2/Compass IGSO-5 (fifth inclined geosynchonous orbit) satellite was launched on December 1 from Xichang, China. Exact launch time was 21:07:04.189 UTC. The third stage of the CZ-3A rocket with the satellite attached achieved a...

December 1, 2011 FTP AND UFCORS STATISTICS FOR NOVEMBER 2011 FTP server statistics for Nov 2011 Total Requests: 4373914 (all FTP requests logged) Total Data Transferred: 1499514 MB (all files) Requests for RINEX data: 3796353 (86% of total requests) 2011 data: 2918403 (76% of RINEX requests)

How do I update my Evesham Nav-Cam 7700 Sat Nav

Hi guys, I have just purchased a new TomTom XL2 IQ routes fitted with the fairly new style 'easyport' circular mount. The mount was already fitted to the sat nav device in the box. I am sure this must be quite apparant to most people, but i can't for the life of me work out how to remove the mount from my TomTom sat nav device. There are no instructions on how to do this with the device. The only...

I have used my Garmin 660 successfully with my SPV but now that I have upgraded to a Nokia 5800, I cannot get the Garmin to recognise the phone. I checked the Garmin site and this model is not listed. Does anyone know if another model setting would work? I want the handsfree feature to work. Thank you. LC

Folks - You are reading this probably because you are considering participating in these SatNav related newsgroups. These are among the finest GPS (global satellite positioning) and sat-nav (satellite navigation) discussions on the internet, with many contributors who have the widest experience imaginable. This forum is a web gateway to this collection of newsgroups. SatNav Banter mirrors these...