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sci.geo.satellite-nav (Global Satellite Navigation) (sci.geo.satellite-nav) Discussion of global navigation satellite systems (GNSS). Topics include the technical aspects of GNSS operation, user experiences in the use of GNSS, information regarding GNSS products and discussion of GNSS policy (such as GPS selective availability).

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GPS Modernization,Ground Control Software Update to AEP 5.50D Setfor Friday, March 5 by Sam Wormley[_2_]
http://www.gpsworld.com/gnss-system/gps-modernization/news/ground-control-software-update-aep-550d-set-friday-9641?print=1 GPS Modernization Ground Control Software Update to AEP 5.50D Set for Friday March 3, 2010 Building on the January 2010 upgrade to the GPS ground control segment, on Friday Air Force Space Command will be installing another software release, AEP 5.5D, primarily designed...
March 4th 10 02:52 PM
by Sam Wormley[_2_] Go to last post
0 452
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010045 NANU TYPE: GENERAL by Sam Wormley[_2_]
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010045 NANU TYPE: GENERAL *** GENERAL MESSAGE TO ALL GPS USERS *** Reference NANU 2010041. This is a reminder of an upcoming event related to the GPS satellite constellation. The 2nd Space Operations Squadron will be installing a ground software upgrade on 5 March 2010 (J064). There are no planned GPS satellite outages for this activity, and...
March 4th 10 02:47 PM
by Sam Wormley[_2_] Go to last post
0 244
Bluetooth pioneer hooks into GPS - The Inquirer by [email protected]
BLUETOOTH PIONEER CSR has been showing off the results of its purchase last year of GPS technology market leader SiRF, which gave it a foothold in the lucrative market for location-aware devices. Products from the two companies have been integrated into a platform called Trinity, suitable for connected devices bundling satnav and multimedia facilities, It comprises two CRS chips - one for audio,...
March 4th 10 06:48 AM
by [email protected] Go to last post
0 204
GRAPHICAL DISPLAY OF OPUS-RS ACCURACIES (UPDATED WEEKLY) by Sam Wormley[_2_]
March 2, 2010 GRAPHICAL DISPLAY OF OPUS-RS ACCURACIES (UPDATED WEEKLY) To know the approximate accuracy of OPUS-RS solutions as a function of geographic location, click the following two graphs: a) 15 minutes session accuracy Horizontal accuracy: http://www.ngs.noaa.gov/OPUSI/Plots/OPUSRSall-h.15-min.png
March 2nd 10 07:18 PM
by Sam Wormley[_2_] Go to last post
0 186
GLONASS Succeeds with Another Satellite Launch by Sam Wormley[_2_]
GLONASS Succeeds with Another Satellite Launch Inside GNSS Russian Space Forces successfully launched three GLONASS satellites from the Baikonur launch site in Kazakhstan on March 2, at 00:19 Moscow time (22:19 GMT, March 1).The launch had been postponed from last September after an anomaly was discovered in one of the on-orbit space vehicles (SVs) navigation payload. On February 26,...
March 2nd 10 07:17 PM
by Sam Wormley[_2_] Go to last post
0 194
FTP AND UFCORS STATISTICS FOR FEBRUARY 2010 by Sam Wormley[_2_]
March 2, 2010 FTP AND UFCORS STATISTICS FOR FEBRUARY 2010 FTP server statistics for Feb 2010 Total Requests: 1649608 (all FTP requests logged) Total Data Transferred: 373456 MB (all files) Requests for RINEX data: 1487109 (90% of total requests) 2010 data: 1269117 (85% of RINEX requests)
March 2nd 10 07:16 PM
by Sam Wormley[_2_] Go to last post
0 225
How much better will your navigation be? by T Driver
The US Air Force is changing the GPS constellation, from a 24 satellite optimization to a 24+3 optimization scheme. This will lower dilution of precision (DOP) world wide - but by how much? I did an analysis of the current and new optimized constellation and detailed the results he http://blogs.agi.com/navigationAccuracy/?p=315
March 2nd 10 06:40 PM
by claudegps Go to last post
2 301
Trail riding on horseback. by RegB
It has happened, a rider gets thrown and the horse takes off, gets lost, can't be found days or even weeks later. What tracker solutions are available that, for example, could be carried in a saddle bag and activated on some sort of a "where are you" signal ? I assume some sort of "service" would be required, probably expensive, but I would like to gather info anyway. Free would be nice (-:
March 2nd 10 03:57 PM
by Uwe Hercksen Go to last post
9 410
Coverage Improvement for Dual-Frequency SBAS by Sam Wormley[_2_]
Future Augmented March 1, 2010 By: Juan Blanch, Per Enge, Todd Walter GPS World Coverage Improvement for Dual-Frequency SBAS http://www.gpsworld.com/gnss-system/augmentation-assistance/future-augmented-9606?print=1 After reviewing current performance of WAAS, EGNOS, and MSAS, the authors present expected future performance, including the benefits of GPS L5. They evaluate the impact of the...
March 2nd 10 05:01 AM
by Sam Wormley[_2_] Go to last post
0 271
NOTAM for GPS 02/103 - GPS Jamming? by alivespender[_2_]
The geometry would seem to indicate GPS jamming. !GPS 02/103 (KZLA A0303/10) ZLA NAV GPS IS UNRELIABLE AND MAY BE UNAVAILABLE WITHIN A 390NM RADIUS OF THE BEATTY /BTY/ VOR 057.64 DEGREE RADIAL AT 058.385NM OR 37190.8N/1154250W AT FL400 DECREASING IN AREA WITH DECREASE IN ALTITUDE TO 325NM RADIUS AT FL250, 315NM RADIUS AT 10000 FT MSL, AND 240NM RADIUS AT 4,000 FT AGL. THE IMPACT AREA ALSO...
March 1st 10 05:26 PM
by Alan Browne Go to last post
1 238
Multi Purpose GPS Units by CF
Need a listing for portable Gps units that you can load both regular and topo maps at the same time?
March 1st 10 05:21 AM
by Nicholas[_2_] Go to last post
4 383
FY2011 GPS BUDGET PROPOSAL allocates $1.057 billion by Sam Wormley[_2_]
FY2011 GPS BUDGET PROPOSAL allocates $1.057 billion for Department of Defense GPS-related procurement and development activities and nearly $180 million to the Department of Transportation for civil GPS programs. http://www.insidegnss.com/node/1926
March 1st 10 02:07 AM
by Sam Wormley[_2_] Go to last post
0 185
GPS Causing Truckers to Crash Into Bridges by Stephen H. Fischer
"Charles" wrote in message ... .... The first problem is the data base. As routes change, it is difficult to keep them up-to-date. ... that can trump common sense! Hi, I got stuck in Oregon in 2007 due to a washout twenty years ago and a reroute to a
March 1st 10 01:02 AM
by Stephen H. Fischer Go to last post
0 200
Raytheon wins GPS OCX contract by T Driver
http://www.prnewswire.com/news-releases/raytheon-wins-886-million-contract-to-develop-next-generation-gps-control-segment-85472727.html
February 27th 10 10:27 PM
by Nicholas[_2_] Go to last post
7 368
2010-02-27 new GIS programs added by ola[_3_]
2010-02-27 new GIS programs added please send e-mail to : ola 'AT' mail 'DOT' gr , ola3 'AT' mailbox 'DOT' gr , ( please substitute 'AT' with '@' , and 'DOT' with '.' ) , , , http://sites.google.com/site/telvvcd/loadsofgreatsoftware ESRI ArcGis Desktop 9.3.1 with SP1 (1 dvd) ACDSee Canvas with GIS+ 11.2 Build 1269 | 81,01 Mb
February 27th 10 09:17 AM
by ola[_3_] Go to last post
0 252
Looking for advice on golf GPS units by Robert Peirce[_2_]
This may have been covered in the past but I just started to think about it this week. I saw a GolfLogix unit at a local golf star and got interested. The store wanted list, $300, but I found it on the internet for $175. Apparently, you have to have a $30/year subscription to download more than one course, so it is really over $200 for the first year. I don't know what else might be out...
February 25th 10 11:01 PM
by Robert Peirce[_2_] Go to last post
0 178
GPS Slider Phone Panasonic P-02B, 8-Megapixel Camera by jolly
GPS Slider Phone Panasonic P-02B, 8-Megapixel Camera http://www.techespot.com/2010/02/gps-slider-phone-panasonic-p-02b-8.html
February 25th 10 09:27 AM
by jolly Go to last post
0 225
Jamming GPS signals may be a serious threat by PeterM[_2_]
http://news.bbc.co.uk/2/hi/science/nature/8533157.stm
February 24th 10 08:23 PM
by [email protected] Go to last post
2 261
Car thieves making clean getaway with GPS jammers by Wolfgang S. Rupprecht[_11_]
"Car thief gangs have begun using imported GPS jammers to allow them to escape tracking technology." http://www.theregister.co.uk/2010/02/23/car_theft_gps_jam/ It looks like gps jammers may be useful to toll evaders too in the parts of the world where GPS position loggers are being used to automatically charge people when they drive on certain roads. -wolfgang
February 24th 10 07:50 AM
by Mike Russell[_2_] Go to last post
3 283
THE FIRST GPS IIF SATELLITE DELIVERED TO CAPE CANAVERAL by Sam Wormley[_2_]
February 17, 2010 THE FIRST GPS IIF SATELLITE DELIVERED TO CAPE CANAVERAL MEDIA RELEASE: Global Positioning Systems Wing Delivers First GPS IIF Space Vehicle to Cape Canaveral AFS Los Angeles Air Force Base 16 February, 2010
February 23rd 10 08:27 PM
by Sam Wormley[_2_] Go to last post
0 176
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