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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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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 07:23 PM
by [email protected] Go to last post
2 292
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 06:50 AM
by Mike Russell[_2_] Go to last post
3 306
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 07:27 PM
by Sam Wormley[_2_] Go to last post
0 199
President Proposes $1.23 Billion for GPS in FY 2011 Budget by Sam Wormley[_2_]
February 22, 2010 FROM THE NEWS President Proposes $1.23 Billion for GPS in FY 2011 Budget Inside GNSS 19 February, 2010 President Obama’s proposed budget for fiscal year 2011 (FY11) would allocate $1.057 billion for Department of Defense (DoD) GPS-related
February 23rd 10 07:13 PM
by Sam Wormley[_2_] Go to last post
0 193
Uses for a USB GPS Stick? by CF
Other than a computer with map software, what other devices (like a PDA) would a USB GPS Stick be used with? I'm trying to find a small device that could be used for hikin n bikin with regular and/or topo map software.
February 21st 10 08:54 PM
by André, PE1PQX Go to last post
4 384
Moving maps application with (geo)tiffs by user[_3_]
I'm looking for a moving maps application under unix/linux, preferably with (geo)tiffs. -- -- What's on Shortwave guide: choose an hour, go! http://shortwave.tk 700+ Radio Stations on SW http://swstations.tk 300+ languages on SW http://radiolanguages.tk
February 21st 10 04:44 PM
by user[_3_] Go to last post
0 282
OVI maps take off - The Inquirer by [email protected]
THE DEATH KNELL has sounded for satnav companies like Tomtom with the news that Nokia's Ovi Maps has clocked up 1.4 million downloads since its relaunch less than a fortnight ago. Much more at http://www.theinquirer.net/inquirer/news/1590230/ovi-maps
February 21st 10 09:37 AM
by NickTheBatMan Go to last post
6 445
Geotiff to BSB by user[_3_]
I want to show some kind of geotiffs in a moving map application under unix(linux). I found such an app, but it needs BSB format. (do you know one which uses "native" geotiffs?) I have the tif2bsb application (from libbsb-0.0.7), but I need to make KAP files automatically, with the GEO info in it. tif2bsb
February 21st 10 07:32 AM
by user[_3_] Go to last post
0 280
AEP 5.5c Update Update: Bugs Identified, Being Fixed by Sam Wormley[_2_]
AEP 5.5c Update Update: Bugs Identified, Being Fixed February 11, 2010 http://www.gpsworld.com/gnss-system/news/aep-55c-update-update-bugs-identified-being-fixed-9525?print=1 Here is the latest on the AEP 5.5 update and and another error that actually occurred two weeks later. On January 11, 2010 when the GPW Wing and the 2SOPS loaded the updated AEP 5.5C software to the "B" side of the...
February 17th 10 01:17 AM
by Sam Wormley[_2_] Go to last post
0 278
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010030-31 by Sam Wormley[_2_]
Ref: http://gps.afspc.af.mil/gps/Current/current.oa1 http://gps.afspc.af.mil/gps/Current/current.nnu http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010030 SUBJ: SVN61 (PRN02) FORECAST OUTAGE SUMMARY JDAY 047/1438 - JDAY 047/1810 1. NANU TYPE: FCSTSUMM NANU NUMBER: 2010030 NANU DTG: 161814Z FEB 2010
February 16th 10 09:58 PM
by Sam Wormley[_2_] Go to last post
0 216
GPS IIF-1 arrives at the Cape by HIPAR
Let's hope for a flawless prelaunch checkout. http://www.afspc.af.mil/news/story.asp?id=123190456 --- CHAS
February 16th 10 08:56 PM
by HIPAR Go to last post
2 265
Moving Map display by NadCixelsyd
You've seen them on ariplanes: a map with the airplane superimposed as to the location of the flight. I want to do something similar for a tourist ship, but use a printed nautical chart, a GPS, and a HDTV, and (if necessary) a computer. I can get the nautical chart into GIF, TIF, JPG, or PDF format. Anyone know of software for this? Any other hardware required?
February 16th 10 06:51 PM
by Terje Mathisen[_2_] Go to last post
2 344
Loran Shutdown by Soldier in a Combat Zone
Saturday was evidently the last day for the old Coast Guard Loran system. Now it's all GPS and of course the speculation is that the increasing sun spots will foul it up. I don't think we had much problem with sun spots in the previous cycle. I think that the Air Force forced the Coast Guard away from e-Loran which was designed to supplement the current GNSS system. e-Loran would have used...
February 15th 10 10:09 PM
by Alan Browne Go to last post
3 491
urora should thus be visible tonight (February 15/16, 2010) from... by Sam Wormley[_2_]
Our auroral forecast website is down. The effects of the small solar flares of the 13th and 14th of February 2010 have reached the ACE satellite have already begun to be observed by magnetometers in the Alaskan Chain. We expect auroral activity at least equal to that of Estimated Planetary Index, Kp = 4. A map of the expected midnight distribution of aurora is attached to this email.
February 15th 10 08:59 PM
by Sam Wormley[_2_] Go to last post
0 183
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010029 by Sam Wormley[_2_]
Ref: http://gps.afspc.af.mil/gps/Current/current.oa1 http://gps.afspc.af.mil/gps/Current/current.nnu http://www.navcen.uscg.gov/gps/geninfo/NANUabbr.htm NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010029 SUBJ: SVN51 (PRN20) UNUSABLE JDAY 046/0806 - UNTIL FURTHER NOTICE 1. NANU TYPE: UNUSUFN NANU NUMBER: 2010029 NANU DTG: 150937Z FEB 2010
February 15th 10 02:13 PM
by Sam Wormley[_2_] Go to last post
0 184
Has IIF SV1 been shipped to the Cape? by Mike Jr
Has anybody heard if the Wing has authorized Boeing to ship the IIF SV1 to the Cape in preparation for launch this year? --Mike Jr.
February 14th 10 02:32 PM
by HIPAR Go to last post
1 229
Problems with GPS Ground Control Software Update: AEP 5.5C by Sam Wormley[_2_]
Problems with GPS Ground Control Software Update: AEP 5.5C http://www.questexenews.com/t.do?id=4247687:20351432 The GPS Wing and 2SOPS (2nd Space Operations Squadron) initiated a software update of the ground command and control (C2) system for GPS on January 11, 2010. The update has not gone as smoothly as planned, and the second of two NANUs has now appeared. More... ...
February 10th 10 03:04 PM
by Mike Jr Go to last post
1 345
GLONASS at 18 with Three More Satellites Operational by Sam Wormley[_2_]
GLONASS at 18 with Three More Satellites Operational http://www.questexenews.com/t.do?id=4247692:20351432 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. This brings to 18 the number of satellites currently in service, although GLONASS 722 continues to provide a healthy signal only on its...
February 10th 10 04:16 AM
by Sam Wormley[_2_] Go to last post
0 194
Digital Photo Geotagging by Ed M.
Swiss company u-blox has acquired a significant share of the digital camera geotagging market via acquisitions, and for a relatively small amount of cash. The ultra low power chips should have other applications (e.g., asset tracking). This press release was echoed by a few web sites last week: http://www.u-blox.com/en/press-and-events/press-release-archive/889.html "February 1, 2010 –...
February 9th 10 12:31 AM
by Ed M. Go to last post
0 437
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010022 NANU TYPE: GENERAL by Sam Wormley[_2_]
NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2010022 NANU TYPE: GENERAL *** GENERAL MESSAGE TO ALL GPS USERS *** Attention military users with SAASM receivers. For information about an anomaly on a limited number of these receivers, please go to http://gpsoc.afspc.af.smil.mil, contact the GPS Wing Crisis Team (CAT) at 310-653-3085, or contact the GPSOC at (719) 567-2541. Also reference previous...
February 8th 10 03:33 AM
by Sam Wormley[_2_] Go to last post
0 303
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